./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/string_literal_to_fixed_bytes_return_multi.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:32,401 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:32,438 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f31b22c-5310-4476-b6cc-fc060fbf78b8/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:32,441 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:32,441 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:32,455 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:32,455 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:32,455 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:32,455 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:32,456 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:32,456 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:32,456 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:32,456 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:32,456 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:32,456 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:32,456 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:32,456 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:32,456 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:32,457 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:32,457 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:32,457 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:32,457 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:32,457 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:32,457 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:32,457 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:32,458 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:32,458 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:32,640 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:32,646 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:32,647 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:32,648 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:32,648 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:32,649 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f31b22c-5310-4476-b6cc-fc060fbf78b8/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/string_literal_to_fixed_bytes_return_multi.sol_1_no_adts_000.smt2
[2025-05-07 17:27:32,650 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:32,653 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:32,921 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f31b22c-5310-4476-b6cc-fc060fbf78b8/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/string_literal_to_fixed_bytes_return_multi.sol_1_no_adts_000.smt2
[2025-05-07 17:27:32,923 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:32,924 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:32,924 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:32,924 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:32,925 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:32,926 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,962 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32 Unit
[2025-05-07 17:27:32,962 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:32,963 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:32,963 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:32,963 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:32,974 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,974 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,998 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,999 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:33,005 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:33,006 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:33,007 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:33,010 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:33,012 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:33,025 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:33,025 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:33,025 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:33,025 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:33,026 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:33,028 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:33,038 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:33,049 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:33,051 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:33,059 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:33,059 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:33,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:33,059 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_7_0 given in one single declaration
[2025-05-07 17:27:33,059 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_7_0
[2025-05-07 17:27:33,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_7_0
[2025-05-07 17:27:33,059 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_12_function_a__63_64_0 given in one single declaration
[2025-05-07 17:27:33,059 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_12_function_a__63_64_0
[2025-05-07 17:27:33,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_12_function_a__63_64_0
[2025-05-07 17:27:33,060 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_11_function_a__63_64_0 given in one single declaration
[2025-05-07 17:27:33,060 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_11_function_a__63_64_0
[2025-05-07 17:27:33,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_11_function_a__63_64_0
[2025-05-07 17:27:33,060 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_36_a_62_64_0 given in one single declaration
[2025-05-07 17:27:33,060 INFO  L130     BoogieDeclarations]: Found specification of procedure block_36_a_62_64_0
[2025-05-07 17:27:33,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_36_a_62_64_0
[2025-05-07 17:27:33,060 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_35_function_a__63_64_0 given in one single declaration
[2025-05-07 17:27:33,060 INFO  L130     BoogieDeclarations]: Found specification of procedure block_35_function_a__63_64_0
[2025-05-07 17:27:33,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_35_function_a__63_64_0
[2025-05-07 17:27:33,061 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_38_function_f2__40_64_0 given in one single declaration
[2025-05-07 17:27:33,061 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_38_function_f2__40_64_0
[2025-05-07 17:27:33,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_38_function_f2__40_64_0
[2025-05-07 17:27:33,061 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_9_function_f2__40_64_0 given in one single declaration
[2025-05-07 17:27:33,061 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_9_function_f2__40_64_0
[2025-05-07 17:27:33,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_9_function_f2__40_64_0
[2025-05-07 17:27:33,061 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_32_function_h__12_64_0 given in one single declaration
[2025-05-07 17:27:33,061 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_32_function_h__12_64_0
[2025-05-07 17:27:33,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_32_function_h__12_64_0
[2025-05-07 17:27:33,061 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_h__12_64_0 given in one single declaration
[2025-05-07 17:27:33,061 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_h__12_64_0
[2025-05-07 17:27:33,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_h__12_64_0
[2025-05-07 17:27:33,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_return_function_h__12_64_0 given in one single declaration
[2025-05-07 17:27:33,062 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_return_function_h__12_64_0
[2025-05-07 17:27:33,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_return_function_h__12_64_0
[2025-05-07 17:27:33,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_h_11_64_0 given in one single declaration
[2025-05-07 17:27:33,062 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_h_11_64_0
[2025-05-07 17:27:33,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_h_11_64_0
[2025-05-07 17:27:33,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_h__12_64_0 given in one single declaration
[2025-05-07 17:27:33,062 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_h__12_64_0
[2025-05-07 17:27:33,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_h__12_64_0
[2025-05-07 17:27:33,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_30_f2_39_64_0 given in one single declaration
[2025-05-07 17:27:33,063 INFO  L130     BoogieDeclarations]: Found specification of procedure block_30_f2_39_64_0
[2025-05-07 17:27:33,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_30_f2_39_64_0
[2025-05-07 17:27:33,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_function_f2__40_64_0 given in one single declaration
[2025-05-07 17:27:33,063 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_function_f2__40_64_0
[2025-05-07 17:27:33,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_function_f2__40_64_0
[2025-05-07 17:27:33,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_31_return_function_f2__40_64_0 given in one single declaration
[2025-05-07 17:27:33,063 INFO  L130     BoogieDeclarations]: Found specification of procedure block_31_return_function_f2__40_64_0
[2025-05-07 17:27:33,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_31_return_function_f2__40_64_0
[2025-05-07 17:27:33,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_40_function_a__63_64_0 given in one single declaration
[2025-05-07 17:27:33,063 INFO  L130     BoogieDeclarations]: Found specification of procedure block_40_function_a__63_64_0
[2025-05-07 17:27:33,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_40_function_a__63_64_0
[2025-05-07 17:27:33,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_39_function_a__63_64_0 given in one single declaration
[2025-05-07 17:27:33,063 INFO  L130     BoogieDeclarations]: Found specification of procedure block_39_function_a__63_64_0
[2025-05-07 17:27:33,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_39_function_a__63_64_0
[2025-05-07 17:27:33,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_37_return_function_a__63_64_0 given in one single declaration
[2025-05-07 17:27:33,064 INFO  L130     BoogieDeclarations]: Found specification of procedure block_37_return_function_a__63_64_0
[2025-05-07 17:27:33,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_37_return_function_a__63_64_0
[2025-05-07 17:27:33,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_41_function_a__63_64_0 given in one single declaration
[2025-05-07 17:27:33,064 INFO  L130     BoogieDeclarations]: Found specification of procedure block_41_function_a__63_64_0
[2025-05-07 17:27:33,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_41_function_a__63_64_0
[2025-05-07 17:27:33,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_64_0 given in one single declaration
[2025-05-07 17:27:33,064 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_64_0
[2025-05-07 17:27:33,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_64_0
[2025-05-07 17:27:33,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_64_0 given in one single declaration
[2025-05-07 17:27:33,064 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_64_0
[2025-05-07 17:27:33,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_64_0
[2025-05-07 17:27:33,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_45_C_64_0 given in one single declaration
[2025-05-07 17:27:33,065 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_45_C_64_0
[2025-05-07 17:27:33,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_45_C_64_0
[2025-05-07 17:27:33,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_42_C_64_0 given in one single declaration
[2025-05-07 17:27:33,065 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_42_C_64_0
[2025-05-07 17:27:33,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_42_C_64_0
[2025-05-07 17:27:33,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_44_C_64_0 given in one single declaration
[2025-05-07 17:27:33,065 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_44_C_64_0
[2025-05-07 17:27:33,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_44_C_64_0
[2025-05-07 17:27:33,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_43_C_64_0 given in one single declaration
[2025-05-07 17:27:33,065 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_43_C_64_0
[2025-05-07 17:27:33,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_43_C_64_0
[2025-05-07 17:27:33,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_10_function_f2__40_64_0 given in one single declaration
[2025-05-07 17:27:33,066 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_10_function_f2__40_64_0
[2025-05-07 17:27:33,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_10_function_f2__40_64_0
[2025-05-07 17:27:33,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_34_function_f2__40_64_0 given in one single declaration
[2025-05-07 17:27:33,066 INFO  L130     BoogieDeclarations]: Found specification of procedure block_34_function_f2__40_64_0
[2025-05-07 17:27:33,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_34_function_f2__40_64_0
[2025-05-07 17:27:33,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_8_function_f1__29_64_0 given in one single declaration
[2025-05-07 17:27:33,066 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_8_function_f1__29_64_0
[2025-05-07 17:27:33,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_8_function_f1__29_64_0
[2025-05-07 17:27:33,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_7_function_f1__29_64_0 given in one single declaration
[2025-05-07 17:27:33,066 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_7_function_f1__29_64_0
[2025-05-07 17:27:33,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_7_function_f1__29_64_0
[2025-05-07 17:27:33,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_25_return_function_f1__29_64_0 given in one single declaration
[2025-05-07 17:27:33,067 INFO  L130     BoogieDeclarations]: Found specification of procedure block_25_return_function_f1__29_64_0
[2025-05-07 17:27:33,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_25_return_function_f1__29_64_0
[2025-05-07 17:27:33,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_f1_28_64_0 given in one single declaration
[2025-05-07 17:27:33,067 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_f1_28_64_0
[2025-05-07 17:27:33,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_f1_28_64_0
[2025-05-07 17:27:33,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_function_f1__29_64_0 given in one single declaration
[2025-05-07 17:27:33,067 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_function_f1__29_64_0
[2025-05-07 17:27:33,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_function_f1__29_64_0
[2025-05-07 17:27:33,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_26_function_g__20_64_0 given in one single declaration
[2025-05-07 17:27:33,067 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_26_function_g__20_64_0
[2025-05-07 17:27:33,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_26_function_g__20_64_0
[2025-05-07 17:27:33,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_g__20_64_0 given in one single declaration
[2025-05-07 17:27:33,067 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_g__20_64_0
[2025-05-07 17:27:33,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_g__20_64_0
[2025-05-07 17:27:33,068 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_return_function_g__20_64_0 given in one single declaration
[2025-05-07 17:27:33,068 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_return_function_g__20_64_0
[2025-05-07 17:27:33,068 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_return_function_g__20_64_0
[2025-05-07 17:27:33,068 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_g_19_64_0 given in one single declaration
[2025-05-07 17:27:33,068 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_g_19_64_0
[2025-05-07 17:27:33,068 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_g_19_64_0
[2025-05-07 17:27:33,068 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_function_g__20_64_0 given in one single declaration
[2025-05-07 17:27:33,068 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_function_g__20_64_0
[2025-05-07 17:27:33,068 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_function_g__20_64_0
[2025-05-07 17:27:33,068 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_28_function_f1__29_64_0 given in one single declaration
[2025-05-07 17:27:33,068 INFO  L130     BoogieDeclarations]: Found specification of procedure block_28_function_f1__29_64_0
[2025-05-07 17:27:33,068 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_28_function_f1__29_64_0
[2025-05-07 17:27:33,068 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_g__20_64_0 given in one single declaration
[2025-05-07 17:27:33,069 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_g__20_64_0
[2025-05-07 17:27:33,069 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_g__20_64_0
[2025-05-07 17:27:33,069 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_function_g__20_64_0 given in one single declaration
[2025-05-07 17:27:33,069 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_function_g__20_64_0
[2025-05-07 17:27:33,069 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_function_g__20_64_0
[2025-05-07 17:27:33,069 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_h__12_64_0 given in one single declaration
[2025-05-07 17:27:33,069 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_h__12_64_0
[2025-05-07 17:27:33,069 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_h__12_64_0
[2025-05-07 17:27:33,069 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_h__12_64_0 given in one single declaration
[2025-05-07 17:27:33,069 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_h__12_64_0
[2025-05-07 17:27:33,069 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_h__12_64_0
[2025-05-07 17:27:33,069 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:33,069 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:33,070 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:33,272 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:33,274 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:33,540 INFO  L?                        ?]: Removed 348 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:33,540 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:33,552 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:33,552 INFO  L312             CfgBuilder]: Removed 23 assume(true) statements.
[2025-05-07 17:27:33,552 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:33 BoogieIcfgContainer
[2025-05-07 17:27:33,552 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:33,554 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:33,554 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:33,556 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:33,557 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:32" (1/3) ...
[2025-05-07 17:27:33,557 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652e897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:33, skipping insertion in model container
[2025-05-07 17:27:33,557 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (2/3) ...
[2025-05-07 17:27:33,557 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652e897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:33, skipping insertion in model container
[2025-05-07 17:27:33,557 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:33" (3/3) ...
[2025-05-07 17:27:33,558 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:33,568 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:33,570 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 44 procedures, 174 locations, 269 edges, 44 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:33,601 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:33,611 INFO  L340      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e6e7691, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:33,611 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:33,614 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 174 states, 70 states have (on average 1.1) internal successors, (77), 77 states have internal predecessors, (77), 62 states have call successors, (64), 43 states have call predecessors, (64), 43 states have return successors, (64), 53 states have call predecessors, (64), 62 states have call successors, (64)
[2025-05-07 17:27:33,623 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2025-05-07 17:27:33,624 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:33,624 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:33,624 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:33,628 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:33,628 INFO  L85        PathProgramCache]: Analyzing trace with hash -1508097315, now seen corresponding path program 1 times
[2025-05-07 17:27:33,633 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:33,634 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076778183]
[2025-05-07 17:27:33,634 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:33,634 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:33,695 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes.
[2025-05-07 17:27:33,785 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements.
[2025-05-07 17:27:33,785 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:33,786 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:34,078 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,078 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076778183]
[2025-05-07 17:27:34,078 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076778183] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,079 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,081 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:27:34,082 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702968044]
[2025-05-07 17:27:34,083 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,085 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:27:34,085 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,112 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:27:34,112 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:27:34,114 INFO  L87              Difference]: Start difference. First operand  has 174 states, 70 states have (on average 1.1) internal successors, (77), 77 states have internal predecessors, (77), 62 states have call successors, (64), 43 states have call predecessors, (64), 43 states have return successors, (64), 53 states have call predecessors, (64), 62 states have call successors, (64) Second operand  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23)
[2025-05-07 17:27:34,196 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,196 INFO  L93              Difference]: Finished difference Result 176 states and 210 transitions.
[2025-05-07 17:27:34,197 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:27:34,199 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 82
[2025-05-07 17:27:34,199 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,205 INFO  L225             Difference]: With dead ends: 176
[2025-05-07 17:27:34,205 INFO  L226             Difference]: Without dead ends: 176
[2025-05-07 17:27:34,206 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:27:34,208 INFO  L437           NwaCegarLoop]: 199 mSDtfsCounter, 1 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:34,209 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 784 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:34,218 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 176 states.
[2025-05-07 17:27:34,238 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176.
[2025-05-07 17:27:34,239 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 176 states, 71 states have (on average 1.0845070422535212) internal successors, (77), 77 states have internal predecessors, (77), 62 states have call successors, (64), 43 states have call predecessors, (64), 45 states have return successors, (69), 55 states have call predecessors, (69), 62 states have call successors, (69)
[2025-05-07 17:27:34,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 210 transitions.
[2025-05-07 17:27:34,243 INFO  L79                 Accepts]: Start accepts. Automaton has 176 states and 210 transitions. Word has length 82
[2025-05-07 17:27:34,244 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:34,244 INFO  L485      AbstractCegarLoop]: Abstraction has 176 states and 210 transitions.
[2025-05-07 17:27:34,244 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23)
[2025-05-07 17:27:34,244 INFO  L278                IsEmpty]: Start isEmpty. Operand 176 states and 210 transitions.
[2025-05-07 17:27:34,247 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2025-05-07 17:27:34,247 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,247 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:34,247 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:34,247 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,248 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,248 INFO  L85        PathProgramCache]: Analyzing trace with hash 1127280289, now seen corresponding path program 1 times
[2025-05-07 17:27:34,248 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,248 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922226877]
[2025-05-07 17:27:34,248 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,248 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:34,291 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes.
[2025-05-07 17:27:34,311 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements.
[2025-05-07 17:27:34,311 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:34,311 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:34,583 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,583 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922226877]
[2025-05-07 17:27:34,584 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922226877] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,584 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,584 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2025-05-07 17:27:34,584 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144426875]
[2025-05-07 17:27:34,584 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,585 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2025-05-07 17:27:34,585 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,585 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2025-05-07 17:27:34,585 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:27:34,585 INFO  L87              Difference]: Start difference. First operand 176 states and 210 transitions. Second operand  has 10 states, 8 states have (on average 4.625) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (24), 1 states have call predecessors, (24), 8 states have return successors, (24), 9 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:34,750 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,750 INFO  L93              Difference]: Finished difference Result 176 states and 209 transitions.
[2025-05-07 17:27:34,751 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2025-05-07 17:27:34,751 INFO  L79                 Accepts]: Start accepts. Automaton has  has 10 states, 8 states have (on average 4.625) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (24), 1 states have call predecessors, (24), 8 states have return successors, (24), 9 states have call predecessors, (24), 5 states have call successors, (24) Word has length 85
[2025-05-07 17:27:34,751 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,752 INFO  L225             Difference]: With dead ends: 176
[2025-05-07 17:27:34,752 INFO  L226             Difference]: Without dead ends: 176
[2025-05-07 17:27:34,752 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110
[2025-05-07 17:27:34,753 INFO  L437           NwaCegarLoop]: 194 mSDtfsCounter, 2 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:34,753 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1717 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:34,754 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 176 states.
[2025-05-07 17:27:34,761 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176.
[2025-05-07 17:27:34,761 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 176 states, 71 states have (on average 1.0845070422535212) internal successors, (77), 77 states have internal predecessors, (77), 62 states have call successors, (64), 43 states have call predecessors, (64), 45 states have return successors, (68), 55 states have call predecessors, (68), 62 states have call successors, (68)
[2025-05-07 17:27:34,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 209 transitions.
[2025-05-07 17:27:34,762 INFO  L79                 Accepts]: Start accepts. Automaton has 176 states and 209 transitions. Word has length 85
[2025-05-07 17:27:34,763 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:34,763 INFO  L485      AbstractCegarLoop]: Abstraction has 176 states and 209 transitions.
[2025-05-07 17:27:34,763 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 8 states have (on average 4.625) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (24), 1 states have call predecessors, (24), 8 states have return successors, (24), 9 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:34,763 INFO  L278                IsEmpty]: Start isEmpty. Operand 176 states and 209 transitions.
[2025-05-07 17:27:34,764 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2025-05-07 17:27:34,765 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,765 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:34,765 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:34,765 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,765 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,765 INFO  L85        PathProgramCache]: Analyzing trace with hash -326815785, now seen corresponding path program 1 times
[2025-05-07 17:27:34,765 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,765 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334555780]
[2025-05-07 17:27:34,765 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,765 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:34,797 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes.
[2025-05-07 17:27:34,810 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements.
[2025-05-07 17:27:34,810 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:34,810 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,936 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:34,936 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,936 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334555780]
[2025-05-07 17:27:34,936 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334555780] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,937 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,937 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:34,937 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104822332]
[2025-05-07 17:27:34,937 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,937 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:34,937 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,938 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:34,938 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:34,938 INFO  L87              Difference]: Start difference. First operand 176 states and 209 transitions. Second operand  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (24), 1 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24)
[2025-05-07 17:27:34,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,976 INFO  L93              Difference]: Finished difference Result 180 states and 213 transitions.
[2025-05-07 17:27:34,977 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:34,977 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (24), 1 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24) Word has length 85
[2025-05-07 17:27:34,977 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,978 INFO  L225             Difference]: With dead ends: 180
[2025-05-07 17:27:34,978 INFO  L226             Difference]: Without dead ends: 180
[2025-05-07 17:27:34,979 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:34,979 INFO  L437           NwaCegarLoop]: 203 mSDtfsCounter, 1 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:34,979 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1000 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:34,980 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 180 states.
[2025-05-07 17:27:34,987 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180.
[2025-05-07 17:27:34,987 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 180 states, 73 states have (on average 1.082191780821918) internal successors, (79), 79 states have internal predecessors, (79), 62 states have call successors, (64), 43 states have call predecessors, (64), 47 states have return successors, (70), 57 states have call predecessors, (70), 62 states have call successors, (70)
[2025-05-07 17:27:34,988 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 213 transitions.
[2025-05-07 17:27:34,989 INFO  L79                 Accepts]: Start accepts. Automaton has 180 states and 213 transitions. Word has length 85
[2025-05-07 17:27:34,989 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:34,989 INFO  L485      AbstractCegarLoop]: Abstraction has 180 states and 213 transitions.
[2025-05-07 17:27:34,989 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (24), 1 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24)
[2025-05-07 17:27:34,989 INFO  L278                IsEmpty]: Start isEmpty. Operand 180 states and 213 transitions.
[2025-05-07 17:27:34,990 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2025-05-07 17:27:34,990 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,990 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:34,990 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:34,990 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,991 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,991 INFO  L85        PathProgramCache]: Analyzing trace with hash -2023685827, now seen corresponding path program 1 times
[2025-05-07 17:27:34,991 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,991 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521710582]
[2025-05-07 17:27:34,991 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,991 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,022 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes.
[2025-05-07 17:27:35,031 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements.
[2025-05-07 17:27:35,031 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,031 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,114 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,114 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521710582]
[2025-05-07 17:27:35,114 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521710582] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,114 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:27:35,114 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781909039]
[2025-05-07 17:27:35,114 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,115 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:27:35,115 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,115 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:27:35,116 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:27:35,116 INFO  L87              Difference]: Start difference. First operand 180 states and 213 transitions. Second operand  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23)
[2025-05-07 17:27:35,155 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,156 INFO  L93              Difference]: Finished difference Result 178 states and 210 transitions.
[2025-05-07 17:27:35,156 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:27:35,156 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 82
[2025-05-07 17:27:35,156 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,157 INFO  L225             Difference]: With dead ends: 178
[2025-05-07 17:27:35,157 INFO  L226             Difference]: Without dead ends: 175
[2025-05-07 17:27:35,158 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:27:35,158 INFO  L437           NwaCegarLoop]: 200 mSDtfsCounter, 0 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,158 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 788 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 175 states.
[2025-05-07 17:27:35,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175.
[2025-05-07 17:27:35,165 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 175 states, 71 states have (on average 1.0845070422535212) internal successors, (77), 77 states have internal predecessors, (77), 60 states have call successors, (61), 42 states have call predecessors, (61), 46 states have return successors, (67), 55 states have call predecessors, (67), 60 states have call successors, (67)
[2025-05-07 17:27:35,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 205 transitions.
[2025-05-07 17:27:35,166 INFO  L79                 Accepts]: Start accepts. Automaton has 175 states and 205 transitions. Word has length 82
[2025-05-07 17:27:35,166 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,166 INFO  L485      AbstractCegarLoop]: Abstraction has 175 states and 205 transitions.
[2025-05-07 17:27:35,166 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23)
[2025-05-07 17:27:35,166 INFO  L278                IsEmpty]: Start isEmpty. Operand 175 states and 205 transitions.
[2025-05-07 17:27:35,167 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2025-05-07 17:27:35,167 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,167 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,167 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:27:35,168 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,168 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,168 INFO  L85        PathProgramCache]: Analyzing trace with hash 803491417, now seen corresponding path program 1 times
[2025-05-07 17:27:35,168 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,168 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977710943]
[2025-05-07 17:27:35,168 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,168 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,191 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes.
[2025-05-07 17:27:35,193 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements.
[2025-05-07 17:27:35,193 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,193 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,238 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,238 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,238 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977710943]
[2025-05-07 17:27:35,239 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977710943] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,239 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,239 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:35,239 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370439330]
[2025-05-07 17:27:35,239 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,239 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:35,239 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,240 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:35,240 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:35,240 INFO  L87              Difference]: Start difference. First operand 175 states and 205 transitions. Second operand  has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23)
[2025-05-07 17:27:35,249 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,249 INFO  L93              Difference]: Finished difference Result 179 states and 213 transitions.
[2025-05-07 17:27:35,249 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:35,249 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 82
[2025-05-07 17:27:35,249 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,250 INFO  L225             Difference]: With dead ends: 179
[2025-05-07 17:27:35,250 INFO  L226             Difference]: Without dead ends: 175
[2025-05-07 17:27:35,250 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:35,251 INFO  L437           NwaCegarLoop]: 195 mSDtfsCounter, 1 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,251 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 578 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 175 states.
[2025-05-07 17:27:35,256 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173.
[2025-05-07 17:27:35,257 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173 states, 71 states have (on average 1.0704225352112675) internal successors, (76), 76 states have internal predecessors, (76), 58 states have call successors, (59), 42 states have call predecessors, (59), 46 states have return successors, (65), 54 states have call predecessors, (65), 58 states have call successors, (65)
[2025-05-07 17:27:35,258 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 200 transitions.
[2025-05-07 17:27:35,258 INFO  L79                 Accepts]: Start accepts. Automaton has 173 states and 200 transitions. Word has length 82
[2025-05-07 17:27:35,258 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,258 INFO  L485      AbstractCegarLoop]: Abstraction has 173 states and 200 transitions.
[2025-05-07 17:27:35,258 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23)
[2025-05-07 17:27:35,258 INFO  L278                IsEmpty]: Start isEmpty. Operand 173 states and 200 transitions.
[2025-05-07 17:27:35,259 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2025-05-07 17:27:35,259 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,259 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,259 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:27:35,259 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,260 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,260 INFO  L85        PathProgramCache]: Analyzing trace with hash 91719939, now seen corresponding path program 1 times
[2025-05-07 17:27:35,260 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,260 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638881203]
[2025-05-07 17:27:35,260 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,260 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,287 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes.
[2025-05-07 17:27:35,296 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements.
[2025-05-07 17:27:35,296 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,296 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,376 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,376 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,376 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638881203]
[2025-05-07 17:27:35,376 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638881203] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,376 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,376 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:35,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083917194]
[2025-05-07 17:27:35,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,376 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:35,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,377 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:35,377 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,377 INFO  L87              Difference]: Start difference. First operand 173 states and 200 transitions. Second operand  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (24), 1 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24)
[2025-05-07 17:27:35,411 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,411 INFO  L93              Difference]: Finished difference Result 177 states and 204 transitions.
[2025-05-07 17:27:35,412 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:35,412 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (24), 1 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24) Word has length 85
[2025-05-07 17:27:35,412 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,413 INFO  L225             Difference]: With dead ends: 177
[2025-05-07 17:27:35,413 INFO  L226             Difference]: Without dead ends: 177
[2025-05-07 17:27:35,414 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,414 INFO  L437           NwaCegarLoop]: 191 mSDtfsCounter, 1 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,415 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 940 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 177 states.
[2025-05-07 17:27:35,421 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 173.
[2025-05-07 17:27:35,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173 states, 71 states have (on average 1.0704225352112675) internal successors, (76), 76 states have internal predecessors, (76), 58 states have call successors, (59), 42 states have call predecessors, (59), 46 states have return successors, (65), 54 states have call predecessors, (65), 58 states have call successors, (65)
[2025-05-07 17:27:35,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 200 transitions.
[2025-05-07 17:27:35,423 INFO  L79                 Accepts]: Start accepts. Automaton has 173 states and 200 transitions. Word has length 85
[2025-05-07 17:27:35,424 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,424 INFO  L485      AbstractCegarLoop]: Abstraction has 173 states and 200 transitions.
[2025-05-07 17:27:35,424 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (24), 1 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24)
[2025-05-07 17:27:35,424 INFO  L278                IsEmpty]: Start isEmpty. Operand 173 states and 200 transitions.
[2025-05-07 17:27:35,426 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2025-05-07 17:27:35,426 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,426 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,426 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:27:35,426 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,426 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,426 INFO  L85        PathProgramCache]: Analyzing trace with hash -1877900023, now seen corresponding path program 1 times
[2025-05-07 17:27:35,427 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,427 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739877974]
[2025-05-07 17:27:35,427 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,427 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,456 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes.
[2025-05-07 17:27:35,465 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements.
[2025-05-07 17:27:35,465 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,465 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,530 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,530 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739877974]
[2025-05-07 17:27:35,530 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739877974] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,530 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,530 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:35,531 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331783294]
[2025-05-07 17:27:35,531 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,531 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:35,531 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,532 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:35,532 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,532 INFO  L87              Difference]: Start difference. First operand 173 states and 200 transitions. Second operand  has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23)
[2025-05-07 17:27:35,585 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,585 INFO  L93              Difference]: Finished difference Result 173 states and 199 transitions.
[2025-05-07 17:27:35,586 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:35,586 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 82
[2025-05-07 17:27:35,586 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,587 INFO  L225             Difference]: With dead ends: 173
[2025-05-07 17:27:35,587 INFO  L226             Difference]: Without dead ends: 173
[2025-05-07 17:27:35,587 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,587 INFO  L437           NwaCegarLoop]: 188 mSDtfsCounter, 1 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,588 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 924 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,588 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 173 states.
[2025-05-07 17:27:35,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173.
[2025-05-07 17:27:35,592 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173 states, 71 states have (on average 1.0704225352112675) internal successors, (76), 76 states have internal predecessors, (76), 58 states have call successors, (59), 42 states have call predecessors, (59), 46 states have return successors, (64), 54 states have call predecessors, (64), 58 states have call successors, (64)
[2025-05-07 17:27:35,593 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 199 transitions.
[2025-05-07 17:27:35,593 INFO  L79                 Accepts]: Start accepts. Automaton has 173 states and 199 transitions. Word has length 82
[2025-05-07 17:27:35,593 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,593 INFO  L485      AbstractCegarLoop]: Abstraction has 173 states and 199 transitions.
[2025-05-07 17:27:35,593 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23)
[2025-05-07 17:27:35,593 INFO  L278                IsEmpty]: Start isEmpty. Operand 173 states and 199 transitions.
[2025-05-07 17:27:35,594 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2025-05-07 17:27:35,594 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,594 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,594 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-05-07 17:27:35,594 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,595 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,595 INFO  L85        PathProgramCache]: Analyzing trace with hash 1152259413, now seen corresponding path program 1 times
[2025-05-07 17:27:35,595 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,595 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698239664]
[2025-05-07 17:27:35,595 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,595 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,622 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes.
[2025-05-07 17:27:35,631 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements.
[2025-05-07 17:27:35,631 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,631 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,707 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,707 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698239664]
[2025-05-07 17:27:35,707 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698239664] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,707 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,707 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:27:35,707 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421345185]
[2025-05-07 17:27:35,708 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,708 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:27:35,708 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,708 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:27:35,709 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:35,709 INFO  L87              Difference]: Start difference. First operand 173 states and 199 transitions. Second operand  has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (22), 1 states have call predecessors, (22), 6 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22)
[2025-05-07 17:27:35,756 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,756 INFO  L93              Difference]: Finished difference Result 158 states and 180 transitions.
[2025-05-07 17:27:35,756 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:27:35,756 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (22), 1 states have call predecessors, (22), 6 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) Word has length 79
[2025-05-07 17:27:35,757 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,757 INFO  L225             Difference]: With dead ends: 158
[2025-05-07 17:27:35,757 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:35,757 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:35,757 INFO  L437           NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,757 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1034 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:35,758 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:35,758 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:35,758 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:35,758 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79
[2025-05-07 17:27:35,758 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,758 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:35,758 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (22), 1 states have call predecessors, (22), 6 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22)
[2025-05-07 17:27:35,758 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:35,758 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:35,760 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:35,760 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-05-07 17:27:35,762 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,764 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:35,766 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:35 BoogieIcfgContainer
[2025-05-07 17:27:35,766 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:35,767 INFO  L158              Benchmark]: Toolchain (without parser) took 2843.12ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 138.0MB in the beginning and 228.7MB in the end (delta: -90.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:35,767 INFO  L158              Benchmark]: SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:35,767 INFO  L158              Benchmark]: ChcToBoogie took 38.21ms. Allocated memory is still 234.9MB. Free memory was 138.0MB in the beginning and 132.5MB in the end (delta: 5.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:35,767 INFO  L158              Benchmark]: Boogie Preprocessor took 62.01ms. Allocated memory is still 234.9MB. Free memory was 132.5MB in the beginning and 128.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:35,767 INFO  L158              Benchmark]: RCFGBuilder took 526.90ms. Allocated memory is still 234.9MB. Free memory was 128.4MB in the beginning and 145.8MB in the end (delta: -17.4MB). Peak memory consumption was 26.2MB. Max. memory is 33.6GB.
[2025-05-07 17:27:35,768 INFO  L158              Benchmark]: TraceAbstraction took 2212.71ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 145.2MB in the beginning and 228.7MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:35,768 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 38.21ms. Allocated memory is still 234.9MB. Free memory was 138.0MB in the beginning and 132.5MB in the end (delta: 5.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 62.01ms. Allocated memory is still 234.9MB. Free memory was 132.5MB in the beginning and 128.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 526.90ms. Allocated memory is still 234.9MB. Free memory was 128.4MB in the beginning and 145.8MB in the end (delta: -17.4MB). Peak memory consumption was 26.2MB. Max. memory is 33.6GB.
 * TraceAbstraction took 2212.71ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 145.2MB in the beginning and 228.7MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 44 procedures, 174 locations, 269 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 7765 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6220 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1545 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=3, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 662 NumberOfCodeBlocks, 662 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 654 ConstructedInterpolants, 0 QuantifiedInterpolants, 824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:27:35,779 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
sat
