./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/try_catch/try_multiple_returned_values_with_tuple.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:13,410 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:13,449 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274c4a0-75a4-4c3d-9616-f6f588bed310/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:13,452 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:13,452 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:13,466 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:13,466 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:13,466 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:13,466 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:13,466 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:13,467 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:13,467 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:13,467 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:13,467 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:13,467 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:13,467 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:13,467 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:13,467 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:13,467 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:13,468 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:13,468 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:13,468 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:13,468 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:13,468 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:13,468 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:13,469 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:13,469 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:13,651 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:13,659 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:13,661 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:13,662 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:13,662 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:13,663 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274c4a0-75a4-4c3d-9616-f6f588bed310/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/try_catch/try_multiple_returned_values_with_tuple.sol_1_no_adts_000.smt2
[2025-05-07 17:26:13,664 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:13,668 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:13,933 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274c4a0-75a4-4c3d-9616-f6f588bed310/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/try_catch/try_multiple_returned_values_with_tuple.sol_1_no_adts_000.smt2
[2025-05-07 17:26:13,935 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:13,936 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:13,937 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:13,937 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:13,937 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:13,938 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:13,972 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13 Unit
[2025-05-07 17:26:13,972 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:13,972 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:13,973 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:13,973 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:13,983 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:13,983 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,005 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,005 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,010 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,011 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,012 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,014 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,016 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,026 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:14,027 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:14,027 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:14,027 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:14,028 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (1/1) ...
[2025-05-07 17:26:14,030 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:14,039 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:14,048 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 17:26:14,050 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 17:26:14,061 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:14,061 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:14,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:14,061 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_4_0 given in one single declaration
[2025-05-07 17:26:14,061 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_4_0
[2025-05-07 17:26:14,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_4_0
[2025-05-07 17:26:14,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_f__76_77_0 given in one single declaration
[2025-05-07 17:26:14,062 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_f__76_77_0
[2025-05-07 17:26:14,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_f__76_77_0
[2025-05-07 17:26:14,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_f__76_77_0 given in one single declaration
[2025-05-07 17:26:14,062 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_f__76_77_0
[2025-05-07 17:26:14,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_f__76_77_0
[2025-05-07 17:26:14,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_try_header_f_70_77_0 given in one single declaration
[2025-05-07 17:26:14,062 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_try_header_f_70_77_0
[2025-05-07 17:26:14,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_try_header_f_70_77_0
[2025-05-07 17:26:14,062 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_f_75_77_0 given in one single declaration
[2025-05-07 17:26:14,062 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_f_75_77_0
[2025-05-07 17:26:14,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_f_75_77_0
[2025-05-07 17:26:14,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__76_77_0 given in one single declaration
[2025-05-07 17:26:14,063 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__76_77_0
[2025-05-07 17:26:14,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__76_77_0
[2025-05-07 17:26:14,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_18_function_g__31_77_0 given in one single declaration
[2025-05-07 17:26:14,063 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_18_function_g__31_77_0
[2025-05-07 17:26:14,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_18_function_g__31_77_0
[2025-05-07 17:26:14,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_g__31_77_0 given in one single declaration
[2025-05-07 17:26:14,063 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_g__31_77_0
[2025-05-07 17:26:14,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_g__31_77_0
[2025-05-07 17:26:14,063 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_return_function_g__31_77_0 given in one single declaration
[2025-05-07 17:26:14,063 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_return_function_g__31_77_0
[2025-05-07 17:26:14,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_return_function_g__31_77_0
[2025-05-07 17:26:14,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_g_30_77_0 given in one single declaration
[2025-05-07 17:26:14,064 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_g_30_77_0
[2025-05-07 17:26:14,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_g_30_77_0
[2025-05-07 17:26:14,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_function_g__31_77_0 given in one single declaration
[2025-05-07 17:26:14,064 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_function_g__31_77_0
[2025-05-07 17:26:14,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_function_g__31_77_0
[2025-05-07 17:26:14,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_function_f__76_77_0 given in one single declaration
[2025-05-07 17:26:14,064 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_function_f__76_77_0
[2025-05-07 17:26:14,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_function_f__76_77_0
[2025-05-07 17:26:14,064 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_f_75_77_0 given in one single declaration
[2025-05-07 17:26:14,064 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_f_75_77_0
[2025-05-07 17:26:14,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_f_75_77_0
[2025-05-07 17:26:14,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_try_clause_69f_69_77_0 given in one single declaration
[2025-05-07 17:26:14,065 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_try_clause_69f_69_77_0
[2025-05-07 17:26:14,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_try_clause_69f_69_77_0
[2025-05-07 17:26:14,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_try_clause_67f_67_77_0 given in one single declaration
[2025-05-07 17:26:14,065 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_try_clause_67f_67_77_0
[2025-05-07 17:26:14,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_try_clause_67f_67_77_0
[2025-05-07 17:26:14,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_function_f__76_77_0 given in one single declaration
[2025-05-07 17:26:14,065 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_function_f__76_77_0
[2025-05-07 17:26:14,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_function_f__76_77_0
[2025-05-07 17:26:14,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_return_function_f__76_77_0 given in one single declaration
[2025-05-07 17:26:14,065 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_return_function_f__76_77_0
[2025-05-07 17:26:14,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_return_function_f__76_77_0
[2025-05-07 17:26:14,065 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_function_f__76_77_0 given in one single declaration
[2025-05-07 17:26:14,065 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_function_f__76_77_0
[2025-05-07 17:26:14,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_function_f__76_77_0
[2025-05-07 17:26:14,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_77_0 given in one single declaration
[2025-05-07 17:26:14,066 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_77_0
[2025-05-07 17:26:14,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_77_0
[2025-05-07 17:26:14,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_77_0 given in one single declaration
[2025-05-07 17:26:14,066 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_77_0
[2025-05-07 17:26:14,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_77_0
[2025-05-07 17:26:14,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_25_C_77_0 given in one single declaration
[2025-05-07 17:26:14,066 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_25_C_77_0
[2025-05-07 17:26:14,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_25_C_77_0
[2025-05-07 17:26:14,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_22_C_77_0 given in one single declaration
[2025-05-07 17:26:14,066 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_22_C_77_0
[2025-05-07 17:26:14,066 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_22_C_77_0
[2025-05-07 17:26:14,066 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_24_C_77_0 given in one single declaration
[2025-05-07 17:26:14,067 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_24_C_77_0
[2025-05-07 17:26:14,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_24_C_77_0
[2025-05-07 17:26:14,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_23_C_77_0 given in one single declaration
[2025-05-07 17:26:14,067 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_23_C_77_0
[2025-05-07 17:26:14,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_23_C_77_0
[2025-05-07 17:26:14,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_g__31_77_0 given in one single declaration
[2025-05-07 17:26:14,067 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_g__31_77_0
[2025-05-07 17:26:14,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_g__31_77_0
[2025-05-07 17:26:14,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_g__31_77_0 given in one single declaration
[2025-05-07 17:26:14,067 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_g__31_77_0
[2025-05-07 17:26:14,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_g__31_77_0
[2025-05-07 17:26:14,067 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:14,067 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:14,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:14,221 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:14,223 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:14,471 INFO  L?                        ?]: Removed 262 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:14,472 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:14,481 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:14,482 INFO  L312             CfgBuilder]: Removed 13 assume(true) statements.
[2025-05-07 17:26:14,482 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:14 BoogieIcfgContainer
[2025-05-07 17:26:14,482 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:14,483 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:14,483 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:14,486 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:14,486 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:13" (1/3) ...
[2025-05-07 17:26:14,486 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afc9f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:14, skipping insertion in model container
[2025-05-07 17:26:14,486 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:13" (2/3) ...
[2025-05-07 17:26:14,487 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afc9f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:14, skipping insertion in model container
[2025-05-07 17:26:14,487 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:14" (3/3) ...
[2025-05-07 17:26:14,488 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:14,497 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:14,499 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 28 procedures, 110 locations, 165 edges, 28 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:14,527 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:14,534 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;@2922ccbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:14,534 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:14,537 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 110 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 51 states have internal predecessors, (51), 36 states have call successors, (38), 27 states have call predecessors, (38), 27 states have return successors, (38), 31 states have call predecessors, (38), 36 states have call successors, (38)
[2025-05-07 17:26:14,544 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2025-05-07 17:26:14,544 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:14,544 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]
[2025-05-07 17:26:14,544 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:14,548 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:14,548 INFO  L85        PathProgramCache]: Analyzing trace with hash 703224190, now seen corresponding path program 1 times
[2025-05-07 17:26:14,553 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:14,553 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852396589]
[2025-05-07 17:26:14,553 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:14,553 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:14,600 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes.
[2025-05-07 17:26:14,662 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements.
[2025-05-07 17:26:14,662 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:14,662 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:14,890 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 17:26:14,890 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:14,891 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852396589]
[2025-05-07 17:26:14,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852396589] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:14,891 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:14,893 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:14,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819719313]
[2025-05-07 17:26:14,895 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:14,897 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:14,897 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:14,933 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:14,934 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:14,939 INFO  L87              Difference]: Start difference. First operand  has 110 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 51 states have internal predecessors, (51), 36 states have call successors, (38), 27 states have call predecessors, (38), 27 states have return successors, (38), 31 states have call predecessors, (38), 36 states have call successors, (38) Second operand  has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17)
[2025-05-07 17:26:15,018 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:15,018 INFO  L93              Difference]: Finished difference Result 112 states and 129 transitions.
[2025-05-07 17:26:15,020 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:15,021 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) Word has length 62
[2025-05-07 17:26:15,021 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:15,029 INFO  L225             Difference]: With dead ends: 112
[2025-05-07 17:26:15,029 INFO  L226             Difference]: Without dead ends: 112
[2025-05-07 17:26:15,031 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 17:26:15,034 INFO  L437           NwaCegarLoop]: 124 mSDtfsCounter, 1 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 608 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 17:26:15,034 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 608 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:15,047 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 112 states.
[2025-05-07 17:26:15,064 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112.
[2025-05-07 17:26:15,065 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 112 states, 48 states have (on average 1.0625) internal successors, (51), 51 states have internal predecessors, (51), 36 states have call successors, (38), 27 states have call predecessors, (38), 29 states have return successors, (40), 33 states have call predecessors, (40), 36 states have call successors, (40)
[2025-05-07 17:26:15,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 129 transitions.
[2025-05-07 17:26:15,070 INFO  L79                 Accepts]: Start accepts. Automaton has 112 states and 129 transitions. Word has length 62
[2025-05-07 17:26:15,071 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:15,071 INFO  L485      AbstractCegarLoop]: Abstraction has 112 states and 129 transitions.
[2025-05-07 17:26:15,071 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17)
[2025-05-07 17:26:15,071 INFO  L278                IsEmpty]: Start isEmpty. Operand 112 states and 129 transitions.
[2025-05-07 17:26:15,073 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2025-05-07 17:26:15,073 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:15,073 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]
[2025-05-07 17:26:15,073 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:15,073 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:15,074 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:15,074 INFO  L85        PathProgramCache]: Analyzing trace with hash 296775454, now seen corresponding path program 1 times
[2025-05-07 17:26:15,074 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:15,074 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843176327]
[2025-05-07 17:26:15,074 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:15,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:15,101 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes.
[2025-05-07 17:26:15,120 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements.
[2025-05-07 17:26:15,120 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:15,120 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:15,300 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 17:26:15,300 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:15,300 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843176327]
[2025-05-07 17:26:15,300 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843176327] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:15,300 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:15,300 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2025-05-07 17:26:15,300 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056883787]
[2025-05-07 17:26:15,300 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:15,301 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2025-05-07 17:26:15,301 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:15,302 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2025-05-07 17:26:15,302 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2025-05-07 17:26:15,302 INFO  L87              Difference]: Start difference. First operand 112 states and 129 transitions. Second operand  has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:26:15,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:15,446 INFO  L93              Difference]: Finished difference Result 120 states and 138 transitions.
[2025-05-07 17:26:15,446 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2025-05-07 17:26:15,447 INFO  L79                 Accepts]: Start accepts. Automaton has  has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 4 states have call successors, (17) Word has length 62
[2025-05-07 17:26:15,447 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:15,449 INFO  L225             Difference]: With dead ends: 120
[2025-05-07 17:26:15,449 INFO  L226             Difference]: Without dead ends: 120
[2025-05-07 17:26:15,449 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132
[2025-05-07 17:26:15,450 INFO  L437           NwaCegarLoop]: 119 mSDtfsCounter, 3 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:15,450 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1162 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:15,451 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2025-05-07 17:26:15,459 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116.
[2025-05-07 17:26:15,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 116 states, 50 states have (on average 1.06) internal successors, (53), 53 states have internal predecessors, (53), 36 states have call successors, (38), 27 states have call predecessors, (38), 31 states have return successors, (43), 35 states have call predecessors, (43), 36 states have call successors, (43)
[2025-05-07 17:26:15,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions.
[2025-05-07 17:26:15,462 INFO  L79                 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 62
[2025-05-07 17:26:15,462 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:15,462 INFO  L485      AbstractCegarLoop]: Abstraction has 116 states and 134 transitions.
[2025-05-07 17:26:15,462 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:26:15,462 INFO  L278                IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions.
[2025-05-07 17:26:15,464 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2025-05-07 17:26:15,464 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:15,465 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]
[2025-05-07 17:26:15,465 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:15,465 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:15,465 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:15,465 INFO  L85        PathProgramCache]: Analyzing trace with hash -981518387, now seen corresponding path program 1 times
[2025-05-07 17:26:15,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:15,465 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970491824]
[2025-05-07 17:26:15,466 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:15,466 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:15,494 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes.
[2025-05-07 17:26:15,498 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements.
[2025-05-07 17:26:15,498 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:15,498 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:15,577 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 17:26:15,577 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:15,577 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970491824]
[2025-05-07 17:26:15,577 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970491824] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:15,577 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:15,577 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:15,578 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370001317]
[2025-05-07 17:26:15,578 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:15,578 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:15,578 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:15,579 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:15,579 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:15,579 INFO  L87              Difference]: Start difference. First operand 116 states and 134 transitions. Second operand  has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:26:15,590 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:15,590 INFO  L93              Difference]: Finished difference Result 120 states and 139 transitions.
[2025-05-07 17:26:15,590 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:15,590 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 69
[2025-05-07 17:26:15,591 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:15,592 INFO  L225             Difference]: With dead ends: 120
[2025-05-07 17:26:15,592 INFO  L226             Difference]: Without dead ends: 116
[2025-05-07 17:26:15,592 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 17:26:15,593 INFO  L437           NwaCegarLoop]: 125 mSDtfsCounter, 1 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 368 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 17:26:15,593 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 368 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:15,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2025-05-07 17:26:15,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114.
[2025-05-07 17:26:15,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 50 states have (on average 1.04) internal successors, (52), 52 states have internal predecessors, (52), 34 states have call successors, (36), 27 states have call predecessors, (36), 31 states have return successors, (41), 34 states have call predecessors, (41), 34 states have call successors, (41)
[2025-05-07 17:26:15,603 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions.
[2025-05-07 17:26:15,604 INFO  L79                 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 69
[2025-05-07 17:26:15,604 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:15,604 INFO  L485      AbstractCegarLoop]: Abstraction has 114 states and 129 transitions.
[2025-05-07 17:26:15,604 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:26:15,604 INFO  L278                IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions.
[2025-05-07 17:26:15,606 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2025-05-07 17:26:15,606 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:15,607 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]
[2025-05-07 17:26:15,607 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:15,607 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:15,607 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:15,607 INFO  L85        PathProgramCache]: Analyzing trace with hash -1143746359, now seen corresponding path program 1 times
[2025-05-07 17:26:15,607 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:15,607 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280903683]
[2025-05-07 17:26:15,608 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:15,608 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:15,647 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes.
[2025-05-07 17:26:15,664 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements.
[2025-05-07 17:26:15,664 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:15,664 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:15,753 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 17:26:15,753 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:15,753 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280903683]
[2025-05-07 17:26:15,754 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280903683] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:15,754 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:15,754 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:26:15,754 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342340174]
[2025-05-07 17:26:15,754 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:15,754 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:26:15,754 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:15,755 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:26:15,755 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:26:15,755 INFO  L87              Difference]: Start difference. First operand 114 states and 129 transitions. Second operand  has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:26:15,805 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:15,805 INFO  L93              Difference]: Finished difference Result 113 states and 126 transitions.
[2025-05-07 17:26:15,806 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:26:15,806 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 69
[2025-05-07 17:26:15,806 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:15,807 INFO  L225             Difference]: With dead ends: 113
[2025-05-07 17:26:15,807 INFO  L226             Difference]: Without dead ends: 112
[2025-05-07 17:26:15,807 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 17:26:15,807 INFO  L437           NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:15,808 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 658 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:15,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 112 states.
[2025-05-07 17:26:15,812 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112.
[2025-05-07 17:26:15,812 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 112 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 51 states have internal predecessors, (51), 32 states have call successors, (34), 27 states have call predecessors, (34), 31 states have return successors, (39), 33 states have call predecessors, (39), 32 states have call successors, (39)
[2025-05-07 17:26:15,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions.
[2025-05-07 17:26:15,813 INFO  L79                 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 69
[2025-05-07 17:26:15,813 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:15,813 INFO  L485      AbstractCegarLoop]: Abstraction has 112 states and 124 transitions.
[2025-05-07 17:26:15,813 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:26:15,813 INFO  L278                IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions.
[2025-05-07 17:26:15,814 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2025-05-07 17:26:15,814 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:15,814 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]
[2025-05-07 17:26:15,814 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:26:15,814 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:15,815 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:15,815 INFO  L85        PathProgramCache]: Analyzing trace with hash -1993154916, now seen corresponding path program 1 times
[2025-05-07 17:26:15,815 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:15,815 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582219636]
[2025-05-07 17:26:15,815 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:15,815 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:15,847 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:26:15,869 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:26:15,870 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:15,870 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:16,694 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 17:26:16,694 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:16,694 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582219636]
[2025-05-07 17:26:16,694 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582219636] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:16,694 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:16,695 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:26:16,695 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488289051]
[2025-05-07 17:26:16,695 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:16,695 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:26:16,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:16,696 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:26:16,696 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:16,696 INFO  L87              Difference]: Start difference. First operand 112 states and 124 transitions. Second operand  has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (21), 1 states have call predecessors, (21), 6 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21)
[2025-05-07 17:26:16,779 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:16,779 INFO  L93              Difference]: Finished difference Result 110 states and 121 transitions.
[2025-05-07 17:26:16,780 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:26:16,780 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (21), 1 states have call predecessors, (21), 6 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 76
[2025-05-07 17:26:16,781 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:16,781 INFO  L225             Difference]: With dead ends: 110
[2025-05-07 17:26:16,781 INFO  L226             Difference]: Without dead ends: 108
[2025-05-07 17:26:16,781 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:26:16,782 INFO  L437           NwaCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:16,782 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 728 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:16,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2025-05-07 17:26:16,786 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108.
[2025-05-07 17:26:16,786 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 108 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 49 states have internal predecessors, (49), 31 states have call successors, (32), 26 states have call predecessors, (32), 30 states have return successors, (37), 32 states have call predecessors, (37), 31 states have call successors, (37)
[2025-05-07 17:26:16,787 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 118 transitions.
[2025-05-07 17:26:16,787 INFO  L79                 Accepts]: Start accepts. Automaton has 108 states and 118 transitions. Word has length 76
[2025-05-07 17:26:16,787 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:16,787 INFO  L485      AbstractCegarLoop]: Abstraction has 108 states and 118 transitions.
[2025-05-07 17:26:16,787 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 8 states have internal predecessors, (34), 5 states have call successors, (21), 1 states have call predecessors, (21), 6 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21)
[2025-05-07 17:26:16,788 INFO  L278                IsEmpty]: Start isEmpty. Operand 108 states and 118 transitions.
[2025-05-07 17:26:16,788 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2025-05-07 17:26:16,788 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:16,788 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]
[2025-05-07 17:26:16,788 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:26:16,788 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:16,789 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:16,789 INFO  L85        PathProgramCache]: Analyzing trace with hash -1392972930, now seen corresponding path program 1 times
[2025-05-07 17:26:16,789 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:16,789 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157207988]
[2025-05-07 17:26:16,789 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:16,789 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:16,822 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes.
[2025-05-07 17:26:16,834 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements.
[2025-05-07 17:26:16,834 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:16,834 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:16,992 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 17:26:16,992 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:16,992 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157207988]
[2025-05-07 17:26:16,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157207988] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:16,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:16,992 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2025-05-07 17:26:16,993 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442392924]
[2025-05-07 17:26:16,993 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:16,993 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2025-05-07 17:26:16,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:16,993 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2025-05-07 17:26:16,994 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:26:16,994 INFO  L87              Difference]: Start difference. First operand 108 states and 118 transitions. Second operand  has 10 states, 7 states have (on average 5.142857142857143) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (22), 1 states have call predecessors, (22), 7 states have return successors, (22), 8 states have call predecessors, (22), 5 states have call successors, (22)
[2025-05-07 17:26:17,095 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:17,095 INFO  L93              Difference]: Finished difference Result 102 states and 112 transitions.
[2025-05-07 17:26:17,096 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2025-05-07 17:26:17,096 INFO  L79                 Accepts]: Start accepts. Automaton has  has 10 states, 7 states have (on average 5.142857142857143) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (22), 1 states have call predecessors, (22), 7 states have return successors, (22), 8 states have call predecessors, (22), 5 states have call successors, (22) Word has length 80
[2025-05-07 17:26:17,096 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:17,097 INFO  L225             Difference]: With dead ends: 102
[2025-05-07 17:26:17,097 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:17,097 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2025-05-07 17:26:17,097 INFO  L437           NwaCegarLoop]: 104 mSDtfsCounter, 2 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:17,098 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 907 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:17,098 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:17,098 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:17,098 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 17:26:17,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:17,099 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80
[2025-05-07 17:26:17,099 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:17,099 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:17,099 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 7 states have (on average 5.142857142857143) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (22), 1 states have call predecessors, (22), 7 states have return successors, (22), 8 states have call predecessors, (22), 5 states have call successors, (22)
[2025-05-07 17:26:17,099 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:17,099 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:17,102 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:17,102 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:26:17,105 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:17,107 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:17,110 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:17 BoogieIcfgContainer
[2025-05-07 17:26:17,111 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:17,111 INFO  L158              Benchmark]: Toolchain (without parser) took 3175.07ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 143.9MB in the beginning and 230.0MB in the end (delta: -86.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:17,111 INFO  L158              Benchmark]: SmtParser took 0.24ms. Allocated memory is still 234.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:17,112 INFO  L158              Benchmark]: ChcToBoogie took 35.55ms. Allocated memory is still 234.9MB. Free memory was 143.8MB in the beginning and 140.2MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:17,112 INFO  L158              Benchmark]: Boogie Preprocessor took 54.04ms. Allocated memory is still 234.9MB. Free memory was 140.2MB in the beginning and 136.3MB in the end (delta: 4.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:17,112 INFO  L158              Benchmark]: RCFGBuilder took 454.97ms. Allocated memory is still 234.9MB. Free memory was 136.3MB in the beginning and 164.8MB in the end (delta: -28.5MB). Peak memory consumption was 27.1MB. Max. memory is 33.6GB.
[2025-05-07 17:26:17,112 INFO  L158              Benchmark]: TraceAbstraction took 2627.37ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 164.0MB in the beginning and 230.0MB in the end (delta: -66.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:17,114 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.24ms. Allocated memory is still 234.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 35.55ms. Allocated memory is still 234.9MB. Free memory was 143.8MB in the beginning and 140.2MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 54.04ms. Allocated memory is still 234.9MB. Free memory was 140.2MB in the beginning and 136.3MB in the end (delta: 4.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 454.97ms. Allocated memory is still 234.9MB. Free memory was 136.3MB in the beginning and 164.8MB in the end (delta: -28.5MB). Peak memory consumption was 27.1MB. Max. memory is 33.6GB.
 * TraceAbstraction took 2627.37ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 164.0MB in the beginning and 230.0MB in the end (delta: -66.0MB). 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 28 procedures, 110 locations, 165 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 4431 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3740 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 691 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=2, InterpolantAutomatonStates: 46, 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, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 418 NumberOfCodeBlocks, 418 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 17:26:17,126 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
