./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice_default_end.sol_2_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:24:51,284 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:24:51,322 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e67e41f-f026-4ac8-bc23-fd143d362dec/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:24:51,325 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:24:51,325 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:24:51,338 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:24:51,339 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:24:51,339 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:24:51,339 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:24:51,339 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:24:51,339 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:24:51,339 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:24:51,339 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:24:51,340 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:24:51,340 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:24:51,340 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:24:51,340 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:24:51,340 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:24:51,340 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:24:51,340 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:24:51,340 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:24:51,340 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:24:51,341 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:24:51,341 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:24:51,341 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:24:51,341 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:24:51,341 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:24:51,532 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:24:51,538 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:24:51,540 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:24:51,541 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:24:51,541 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:24:51,542 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e67e41f-f026-4ac8-bc23-fd143d362dec/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice_default_end.sol_2_no_adts_000.smt2
[2025-05-07 17:24:51,543 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:24:51,545 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:24:51,840 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e67e41f-f026-4ac8-bc23-fd143d362dec/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice_default_end.sol_2_no_adts_000.smt2
[2025-05-07 17:24:51,842 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:24:51,843 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:24:51,843 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:24:51,843 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:24:51,844 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:24:51,845 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,883 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51 Unit
[2025-05-07 17:24:51,883 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:24:51,884 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:24:51,884 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:24:51,884 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:24:51,895 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,895 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,918 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,918 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,925 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,926 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,928 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,930 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,932 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,959 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:24:51,959 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:24:51,959 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:24:51,959 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:24:51,960 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (1/1) ...
[2025-05-07 17:24:51,962 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:24:51,974 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:24:51,984 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 17:24:51,986 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 17:24:51,995 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:24:51,995 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:24:51,995 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:24:51,995 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_18_0 given in one single declaration
[2025-05-07 17:24:51,995 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_18_0
[2025-05-07 17:24:51,995 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_18_0
[2025-05-07 17:24:51,995 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_84_0 given in one single declaration
[2025-05-07 17:24:51,995 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_84_0
[2025-05-07 17:24:51,995 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_84_0
[2025-05-07 17:24:51,995 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_84_0 given in one single declaration
[2025-05-07 17:24:51,995 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_84_0
[2025-05-07 17:24:51,995 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_84_0
[2025-05-07 17:24:51,995 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_18_C_84_0 given in one single declaration
[2025-05-07 17:24:51,995 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_18_C_84_0
[2025-05-07 17:24:51,995 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_18_C_84_0
[2025-05-07 17:24:51,996 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_20_C_84_0 given in one single declaration
[2025-05-07 17:24:51,996 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_20_C_84_0
[2025-05-07 17:24:51,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_20_C_84_0
[2025-05-07 17:24:51,996 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_19_C_84_0 given in one single declaration
[2025-05-07 17:24:51,996 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_19_C_84_0
[2025-05-07 17:24:51,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_19_C_84_0
[2025-05-07 17:24:51,996 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_21_C_84_0 given in one single declaration
[2025-05-07 17:24:51,996 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_21_C_84_0
[2025-05-07 17:24:51,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_21_C_84_0
[2025-05-07 17:24:51,996 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,996 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__83_84_0
[2025-05-07 17:24:51,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__83_84_0
[2025-05-07 17:24:51,996 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,996 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__83_84_0
[2025-05-07 17:24:51,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__83_84_0
[2025-05-07 17:24:51,996 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,996 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_f__83_84_0
[2025-05-07 17:24:51,996 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_f__83_84_0
[2025-05-07 17:24:51,996 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_bytes_tuple_0 given in one single declaration
[2025-05-07 17:24:51,996 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_bytes_tuple_0
[2025-05-07 17:24:51,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_bytes_tuple_0
[2025-05-07 17:24:51,997 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_header_bytes_tuple_0 given in one single declaration
[2025-05-07 17:24:51,997 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_header_bytes_tuple_0
[2025-05-07 17:24:51,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_header_bytes_tuple_0
[2025-05-07 17:24:51,997 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_loop_bytes_tuple_0 given in one single declaration
[2025-05-07 17:24:51,997 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_loop_bytes_tuple_0
[2025-05-07 17:24:51,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_loop_bytes_tuple_0
[2025-05-07 17:24:51,997 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_82_84_0 given in one single declaration
[2025-05-07 17:24:51,997 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_82_84_0
[2025-05-07 17:24:51,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_82_84_0
[2025-05-07 17:24:51,997 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,997 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__83_84_0
[2025-05-07 17:24:51,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__83_84_0
[2025-05-07 17:24:51,997 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,997 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__83_84_0
[2025-05-07 17:24:51,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__83_84_0
[2025-05-07 17:24:51,997 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,997 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__83_84_0
[2025-05-07 17:24:51,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__83_84_0
[2025-05-07 17:24:51,997 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,997 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,998 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,998 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,998 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,998 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,998 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,998 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_f__83_84_0 given in one single declaration
[2025-05-07 17:24:51,998 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_f__83_84_0
[2025-05-07 17:24:51,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_f__83_84_0
[2025-05-07 17:24:51,999 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:24:51,999 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:24:51,999 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:24:52,177 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:24:52,179 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:24:52,495 INFO  L?                        ?]: Removed 314 outVars from TransFormulas that were not future-live.
[2025-05-07 17:24:52,495 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:24:52,506 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:24:52,506 INFO  L312             CfgBuilder]: Removed 15 assume(true) statements.
[2025-05-07 17:24:52,506 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:24:52 BoogieIcfgContainer
[2025-05-07 17:24:52,507 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:24:52,508 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:24:52,508 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:24:52,511 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:24:52,511 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:24:51" (1/3) ...
[2025-05-07 17:24:52,512 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29af8bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:24:52, skipping insertion in model container
[2025-05-07 17:24:52,512 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:51" (2/3) ...
[2025-05-07 17:24:52,512 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29af8bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:24:52, skipping insertion in model container
[2025-05-07 17:24:52,512 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:24:52" (3/3) ...
[2025-05-07 17:24:52,513 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:24:52,527 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:24:52,530 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 27 procedures, 129 locations, 238 edges, 27 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:24:52,573 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:24:52,581 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;@1bc85a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:24:52,582 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:24:52,585 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 129 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 52 states have internal predecessors, (52), 53 states have call successors, (62), 26 states have call predecessors, (62), 26 states have return successors, (62), 51 states have call predecessors, (62), 53 states have call successors, (62)
[2025-05-07 17:24:52,595 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:24:52,595 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:52,595 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]
[2025-05-07 17:24:52,596 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:52,600 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:52,600 INFO  L85        PathProgramCache]: Analyzing trace with hash -1168063333, now seen corresponding path program 1 times
[2025-05-07 17:24:52,605 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:52,605 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545202988]
[2025-05-07 17:24:52,606 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:52,606 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:52,655 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:24:52,687 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:24:52,687 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:52,688 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:52,767 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 17:24:52,768 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:52,768 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545202988]
[2025-05-07 17:24:52,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545202988] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:52,769 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:52,770 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:24:52,772 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795103253]
[2025-05-07 17:24:52,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:52,775 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:24:52,775 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:52,792 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:24:52,792 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:24:52,794 INFO  L87              Difference]: Start difference. First operand  has 129 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 52 states have internal predecessors, (52), 53 states have call successors, (62), 26 states have call predecessors, (62), 26 states have return successors, (62), 51 states have call predecessors, (62), 53 states have call successors, (62) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:24:52,837 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:52,837 INFO  L93              Difference]: Finished difference Result 99 states and 124 transitions.
[2025-05-07 17:24:52,838 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:24:52,839 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 51
[2025-05-07 17:24:52,839 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:52,845 INFO  L225             Difference]: With dead ends: 99
[2025-05-07 17:24:52,845 INFO  L226             Difference]: Without dead ends: 93
[2025-05-07 17:24:52,846 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:24:52,849 INFO  L437           NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:52,854 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:52,865 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2025-05-07 17:24:52,889 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2025-05-07 17:24:52,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 38 states have internal predecessors, (38), 37 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 35 states have call predecessors, (40), 37 states have call successors, (40)
[2025-05-07 17:24:52,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions.
[2025-05-07 17:24:52,896 INFO  L79                 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 51
[2025-05-07 17:24:52,897 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:52,897 INFO  L485      AbstractCegarLoop]: Abstraction has 93 states and 118 transitions.
[2025-05-07 17:24:52,897 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:24:52,897 INFO  L278                IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions.
[2025-05-07 17:24:52,900 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2025-05-07 17:24:52,901 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:52,901 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:24:52,901 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:24:52,901 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:52,903 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:52,903 INFO  L85        PathProgramCache]: Analyzing trace with hash 1664039965, now seen corresponding path program 1 times
[2025-05-07 17:24:52,903 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:52,903 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166663297]
[2025-05-07 17:24:52,904 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:52,904 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:52,943 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:24:52,998 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:24:52,998 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:52,998 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:53,255 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2025-05-07 17:24:53,255 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:53,255 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166663297]
[2025-05-07 17:24:53,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166663297] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:53,255 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:53,255 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:24:53,256 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359760826]
[2025-05-07 17:24:53,256 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:53,257 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:24:53,257 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:53,257 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:24:53,258 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:24:53,258 INFO  L87              Difference]: Start difference. First operand 93 states and 118 transitions. Second operand  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:24:53,296 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:53,296 INFO  L93              Difference]: Finished difference Result 97 states and 122 transitions.
[2025-05-07 17:24:53,297 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:24:53,297 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 67
[2025-05-07 17:24:53,297 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:53,298 INFO  L225             Difference]: With dead ends: 97
[2025-05-07 17:24:53,298 INFO  L226             Difference]: Without dead ends: 93
[2025-05-07 17:24:53,299 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 17:24:53,299 INFO  L437           NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:53,300 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 451 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:53,300 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2025-05-07 17:24:53,308 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91.
[2025-05-07 17:24:53,309 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 37 states have internal predecessors, (37), 35 states have call successors, (38), 20 states have call predecessors, (38), 20 states have return successors, (38), 34 states have call predecessors, (38), 35 states have call successors, (38)
[2025-05-07 17:24:53,310 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 113 transitions.
[2025-05-07 17:24:53,310 INFO  L79                 Accepts]: Start accepts. Automaton has 91 states and 113 transitions. Word has length 67
[2025-05-07 17:24:53,310 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:53,311 INFO  L485      AbstractCegarLoop]: Abstraction has 91 states and 113 transitions.
[2025-05-07 17:24:53,311 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:24:53,311 INFO  L278                IsEmpty]: Start isEmpty. Operand 91 states and 113 transitions.
[2025-05-07 17:24:53,313 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2025-05-07 17:24:53,313 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:53,313 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:24:53,313 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:24:53,313 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:53,314 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:53,314 INFO  L85        PathProgramCache]: Analyzing trace with hash 575832473, now seen corresponding path program 1 times
[2025-05-07 17:24:53,314 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:53,314 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793170426]
[2025-05-07 17:24:53,314 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:53,314 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:53,339 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:24:53,359 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:24:53,359 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:53,359 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:53,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2025-05-07 17:24:53,470 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:53,470 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793170426]
[2025-05-07 17:24:53,470 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793170426] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:53,470 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:53,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:24:53,471 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333444328]
[2025-05-07 17:24:53,471 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:53,471 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:24:53,471 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:53,472 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:24:53,472 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:24:53,472 INFO  L87              Difference]: Start difference. First operand 91 states and 113 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:24:53,515 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:53,515 INFO  L93              Difference]: Finished difference Result 95 states and 117 transitions.
[2025-05-07 17:24:53,515 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:24:53,515 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 67
[2025-05-07 17:24:53,515 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:53,516 INFO  L225             Difference]: With dead ends: 95
[2025-05-07 17:24:53,516 INFO  L226             Difference]: Without dead ends: 95
[2025-05-07 17:24:53,516 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 17:24:53,517 INFO  L437           NwaCegarLoop]: 110 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:53,517 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 538 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:53,517 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2025-05-07 17:24:53,523 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95.
[2025-05-07 17:24:53,523 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 37 states have (on average 1.054054054054054) internal successors, (39), 39 states have internal predecessors, (39), 35 states have call successors, (38), 20 states have call predecessors, (38), 22 states have return successors, (40), 36 states have call predecessors, (40), 35 states have call successors, (40)
[2025-05-07 17:24:53,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions.
[2025-05-07 17:24:53,525 INFO  L79                 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 67
[2025-05-07 17:24:53,525 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:53,526 INFO  L485      AbstractCegarLoop]: Abstraction has 95 states and 117 transitions.
[2025-05-07 17:24:53,526 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:24:53,526 INFO  L278                IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions.
[2025-05-07 17:24:53,527 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:24:53,527 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:53,528 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:24:53,528 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:24:53,528 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:53,528 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:53,528 INFO  L85        PathProgramCache]: Analyzing trace with hash 1066472864, now seen corresponding path program 1 times
[2025-05-07 17:24:53,528 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:53,529 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546971865]
[2025-05-07 17:24:53,529 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:53,529 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:53,554 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:24:53,569 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:24:53,569 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:53,569 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:53,665 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-05-07 17:24:53,665 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:53,665 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546971865]
[2025-05-07 17:24:53,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546971865] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:53,665 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:53,665 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:24:53,665 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088194594]
[2025-05-07 17:24:53,665 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:53,666 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:24:53,666 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:53,666 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:24:53,666 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:24:53,667 INFO  L87              Difference]: Start difference. First operand 95 states and 117 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:24:53,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:53,698 INFO  L93              Difference]: Finished difference Result 99 states and 121 transitions.
[2025-05-07 17:24:53,698 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:24:53,698 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 75
[2025-05-07 17:24:53,699 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:53,699 INFO  L225             Difference]: With dead ends: 99
[2025-05-07 17:24:53,699 INFO  L226             Difference]: Without dead ends: 99
[2025-05-07 17:24:53,699 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 17:24:53,700 INFO  L437           NwaCegarLoop]: 114 mSDtfsCounter, 1 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:53,700 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 554 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:53,700 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2025-05-07 17:24:53,704 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95.
[2025-05-07 17:24:53,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 37 states have (on average 1.054054054054054) internal successors, (39), 39 states have internal predecessors, (39), 35 states have call successors, (38), 20 states have call predecessors, (38), 22 states have return successors, (40), 36 states have call predecessors, (40), 35 states have call successors, (40)
[2025-05-07 17:24:53,705 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions.
[2025-05-07 17:24:53,705 INFO  L79                 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 75
[2025-05-07 17:24:53,705 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:53,705 INFO  L485      AbstractCegarLoop]: Abstraction has 95 states and 117 transitions.
[2025-05-07 17:24:53,705 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:24:53,705 INFO  L278                IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions.
[2025-05-07 17:24:53,706 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2025-05-07 17:24:53,706 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:53,706 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:24:53,706 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:24:53,706 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:53,706 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:53,707 INFO  L85        PathProgramCache]: Analyzing trace with hash 454419289, now seen corresponding path program 1 times
[2025-05-07 17:24:53,707 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:53,707 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400653541]
[2025-05-07 17:24:53,707 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:53,707 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:53,728 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes.
[2025-05-07 17:24:53,741 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements.
[2025-05-07 17:24:53,741 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:53,741 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:53,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-05-07 17:24:53,828 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:53,828 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400653541]
[2025-05-07 17:24:53,828 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400653541] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:53,828 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:53,828 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:24:53,828 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000395176]
[2025-05-07 17:24:53,828 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:53,828 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:24:53,828 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:53,828 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:24:53,829 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:24:53,829 INFO  L87              Difference]: Start difference. First operand 95 states and 117 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:24:53,859 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:53,860 INFO  L93              Difference]: Finished difference Result 99 states and 121 transitions.
[2025-05-07 17:24:53,860 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:24:53,860 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 83
[2025-05-07 17:24:53,860 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:53,861 INFO  L225             Difference]: With dead ends: 99
[2025-05-07 17:24:53,861 INFO  L226             Difference]: Without dead ends: 99
[2025-05-07 17:24:53,861 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 17:24:53,862 INFO  L437           NwaCegarLoop]: 114 mSDtfsCounter, 1 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:53,862 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 553 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:53,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2025-05-07 17:24:53,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95.
[2025-05-07 17:24:53,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 37 states have (on average 1.054054054054054) internal successors, (39), 39 states have internal predecessors, (39), 35 states have call successors, (38), 20 states have call predecessors, (38), 22 states have return successors, (40), 36 states have call predecessors, (40), 35 states have call successors, (40)
[2025-05-07 17:24:53,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions.
[2025-05-07 17:24:53,867 INFO  L79                 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 83
[2025-05-07 17:24:53,867 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:53,867 INFO  L485      AbstractCegarLoop]: Abstraction has 95 states and 117 transitions.
[2025-05-07 17:24:53,867 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:24:53,867 INFO  L278                IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions.
[2025-05-07 17:24:53,868 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2025-05-07 17:24:53,868 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:53,868 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:24:53,868 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:24:53,868 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:53,868 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:53,868 INFO  L85        PathProgramCache]: Analyzing trace with hash 1042807913, now seen corresponding path program 1 times
[2025-05-07 17:24:53,868 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:53,868 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613359837]
[2025-05-07 17:24:53,868 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:53,868 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:53,889 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes.
[2025-05-07 17:24:53,906 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements.
[2025-05-07 17:24:53,906 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:53,906 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:54,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-05-07 17:24:54,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:54,156 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613359837]
[2025-05-07 17:24:54,156 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613359837] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:54,156 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:54,156 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2025-05-07 17:24:54,157 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718428958]
[2025-05-07 17:24:54,157 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:54,157 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2025-05-07 17:24:54,157 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:54,157 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2025-05-07 17:24:54,158 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:24:54,158 INFO  L87              Difference]: Start difference. First operand 95 states and 117 transitions. Second operand  has 9 states, 6 states have (on average 4.5) internal successors, (27), 9 states have internal predecessors, (27), 7 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19)
[2025-05-07 17:24:54,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:54,256 INFO  L93              Difference]: Finished difference Result 65 states and 83 transitions.
[2025-05-07 17:24:54,256 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2025-05-07 17:24:54,256 INFO  L79                 Accepts]: Start accepts. Automaton has  has 9 states, 6 states have (on average 4.5) internal successors, (27), 9 states have internal predecessors, (27), 7 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 83
[2025-05-07 17:24:54,257 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:54,257 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:24:54,257 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:24:54,257 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:24:54,257 INFO  L437           NwaCegarLoop]: 77 mSDtfsCounter, 2 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:54,258 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 581 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:24:54,258 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:24:54,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:24:54,258 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 17:24:54,258 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:24:54,258 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83
[2025-05-07 17:24:54,258 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:54,258 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:24:54,259 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 6 states have (on average 4.5) internal successors, (27), 9 states have internal predecessors, (27), 7 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19)
[2025-05-07 17:24:54,259 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:24:54,259 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:24:54,261 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:24:54,261 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:24:54,263 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2025-05-07 17:24:54,265 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:24:54,267 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:24:54 BoogieIcfgContainer
[2025-05-07 17:24:54,267 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:24:54,267 INFO  L158              Benchmark]: Toolchain (without parser) took 2424.82ms. Allocated memory is still 234.9MB. Free memory was 129.7MB in the beginning and 107.4MB in the end (delta: 22.3MB). Peak memory consumption was 33.0MB. Max. memory is 33.6GB.
[2025-05-07 17:24:54,268 INFO  L158              Benchmark]: SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:24:54,268 INFO  L158              Benchmark]: ChcToBoogie took 40.17ms. Allocated memory is still 234.9MB. Free memory was 129.7MB in the beginning and 124.5MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:24:54,268 INFO  L158              Benchmark]: Boogie Preprocessor took 74.98ms. Allocated memory is still 234.9MB. Free memory was 124.5MB in the beginning and 193.1MB in the end (delta: -68.7MB). Peak memory consumption was 26.0MB. Max. memory is 33.6GB.
[2025-05-07 17:24:54,268 INFO  L158              Benchmark]: RCFGBuilder took 547.39ms. Allocated memory is still 234.9MB. Free memory was 193.1MB in the beginning and 135.5MB in the end (delta: 57.7MB). Peak memory consumption was 50.3MB. Max. memory is 33.6GB.
[2025-05-07 17:24:54,268 INFO  L158              Benchmark]: TraceAbstraction took 1758.88ms. Allocated memory is still 234.9MB. Free memory was 134.9MB in the beginning and 107.4MB in the end (delta: 27.5MB). Peak memory consumption was 23.8MB. Max. memory is 33.6GB.
[2025-05-07 17:24:54,269 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 173.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 40.17ms. Allocated memory is still 234.9MB. Free memory was 129.7MB in the beginning and 124.5MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 74.98ms. Allocated memory is still 234.9MB. Free memory was 124.5MB in the beginning and 193.1MB in the end (delta: -68.7MB). Peak memory consumption was 26.0MB. Max. memory is 33.6GB.
 * RCFGBuilder took 547.39ms. Allocated memory is still 234.9MB. Free memory was 193.1MB in the beginning and 135.5MB in the end (delta: 57.7MB). Peak memory consumption was 50.3MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1758.88ms. Allocated memory is still 234.9MB. Free memory was 134.9MB in the beginning and 107.4MB in the end (delta: 27.5MB). Peak memory consumption was 23.8MB. 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 27 procedures, 129 locations, 238 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 2801 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2146 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 655 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 34, 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, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 426 NumberOfCodeBlocks, 426 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 119/119 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 17:24:54,278 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
