./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_identifier_nested_tuple_1.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:52,486 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:52,541 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a5bd97a-e179-43b2-96ea-d7e5837b7b6a/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:52,545 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:52,545 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:52,565 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:52,565 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:52,566 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:52,566 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:52,566 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:52,566 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:52,566 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:52,566 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:52,566 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:52,567 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:52,567 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:52,567 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:52,568 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:52,568 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:52,568 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:52,782 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:52,788 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:52,789 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:52,790 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:52,791 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:52,791 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a5bd97a-e179-43b2-96ea-d7e5837b7b6a/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_identifier_nested_tuple_1.sol_0_no_adts_000.smt2
[2025-05-07 17:27:52,792 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:52,794 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:53,025 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a5bd97a-e179-43b2-96ea-d7e5837b7b6a/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_identifier_nested_tuple_1.sol_0_no_adts_000.smt2
[2025-05-07 17:27:53,028 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:53,028 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:53,029 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:53,029 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:53,029 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:53,031 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,057 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53 Unit
[2025-05-07 17:27:53,057 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:53,058 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:53,058 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:53,058 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:53,069 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,070 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,090 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,090 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,094 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,094 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,096 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,097 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,098 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,108 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:53,108 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:53,109 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:53,109 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:53,109 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (1/1) ...
[2025-05-07 17:27:53,111 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:53,120 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:53,128 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:53,131 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:53,138 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:53,139 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:53,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:53,139 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:27:53,139 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:27:53,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:27:53,139 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__21_37_0 given in one single declaration
[2025-05-07 17:27:53,139 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__21_37_0
[2025-05-07 17:27:53,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__21_37_0
[2025-05-07 17:27:53,139 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__21_37_0 given in one single declaration
[2025-05-07 17:27:53,139 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__21_37_0
[2025-05-07 17:27:53,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__21_37_0
[2025-05-07 17:27:53,139 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__21_37_0 given in one single declaration
[2025-05-07 17:27:53,139 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__21_37_0
[2025-05-07 17:27:53,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__21_37_0
[2025-05-07 17:27:53,140 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_return_function_f__21_37_0 given in one single declaration
[2025-05-07 17:27:53,140 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_return_function_f__21_37_0
[2025-05-07 17:27:53,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_return_function_f__21_37_0
[2025-05-07 17:27:53,140 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_9_function_inc__36_37_0 given in one single declaration
[2025-05-07 17:27:53,140 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_9_function_inc__36_37_0
[2025-05-07 17:27:53,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_9_function_inc__36_37_0
[2025-05-07 17:27:53,140 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_inc__36_37_0 given in one single declaration
[2025-05-07 17:27:53,140 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_inc__36_37_0
[2025-05-07 17:27:53,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_inc__36_37_0
[2025-05-07 17:27:53,140 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_return_function_inc__36_37_0 given in one single declaration
[2025-05-07 17:27:53,140 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_return_function_inc__36_37_0
[2025-05-07 17:27:53,141 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_return_function_inc__36_37_0
[2025-05-07 17:27:53,141 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_inc_35_37_0 given in one single declaration
[2025-05-07 17:27:53,141 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_inc_35_37_0
[2025-05-07 17:27:53,141 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_inc_35_37_0
[2025-05-07 17:27:53,141 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_inc__36_37_0 given in one single declaration
[2025-05-07 17:27:53,141 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_inc__36_37_0
[2025-05-07 17:27:53,141 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_inc__36_37_0
[2025-05-07 17:27:53,141 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_f_20_37_0 given in one single declaration
[2025-05-07 17:27:53,141 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_f_20_37_0
[2025-05-07 17:27:53,141 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_f_20_37_0
[2025-05-07 17:27:53,141 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_function_f__21_37_0 given in one single declaration
[2025-05-07 17:27:53,141 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_function_f__21_37_0
[2025-05-07 17:27:53,141 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_function_f__21_37_0
[2025-05-07 17:27:53,141 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__21_37_0 given in one single declaration
[2025-05-07 17:27:53,141 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__21_37_0
[2025-05-07 17:27:53,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__21_37_0
[2025-05-07 17:27:53,142 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_37_0 given in one single declaration
[2025-05-07 17:27:53,142 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_37_0
[2025-05-07 17:27:53,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_37_0
[2025-05-07 17:27:53,142 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_37_0 given in one single declaration
[2025-05-07 17:27:53,142 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_37_0
[2025-05-07 17:27:53,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_37_0
[2025-05-07 17:27:53,142 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_16_C_37_0 given in one single declaration
[2025-05-07 17:27:53,142 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_16_C_37_0
[2025-05-07 17:27:53,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_16_C_37_0
[2025-05-07 17:27:53,142 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_18_C_37_0 given in one single declaration
[2025-05-07 17:27:53,142 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_18_C_37_0
[2025-05-07 17:27:53,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_18_C_37_0
[2025-05-07 17:27:53,142 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_17_C_37_0 given in one single declaration
[2025-05-07 17:27:53,142 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_17_C_37_0
[2025-05-07 17:27:53,143 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_17_C_37_0
[2025-05-07 17:27:53,143 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_19_C_37_0 given in one single declaration
[2025-05-07 17:27:53,143 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_19_C_37_0
[2025-05-07 17:27:53,143 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_19_C_37_0
[2025-05-07 17:27:53,143 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:53,143 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:53,143 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:53,260 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:53,262 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:53,461 INFO  L?                        ?]: Removed 155 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:53,461 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:53,473 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:53,473 INFO  L312             CfgBuilder]: Removed 10 assume(true) statements.
[2025-05-07 17:27:53,473 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:53 BoogieIcfgContainer
[2025-05-07 17:27:53,473 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:53,475 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:53,476 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:53,479 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:53,479 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:53" (1/3) ...
[2025-05-07 17:27:53,479 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144343e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:53, skipping insertion in model container
[2025-05-07 17:27:53,479 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:53" (2/3) ...
[2025-05-07 17:27:53,480 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144343e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:53, skipping insertion in model container
[2025-05-07 17:27:53,480 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:53" (3/3) ...
[2025-05-07 17:27:53,481 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:53,491 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:53,492 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 21 procedures, 82 locations, 121 edges, 21 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:53,526 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:53,537 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;@5d1cf472, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:53,537 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:53,540 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 82 states, 34 states have (on average 1.088235294117647) internal successors, (37), 37 states have internal predecessors, (37), 27 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 24 states have call predecessors, (28), 27 states have call successors, (28)
[2025-05-07 17:27:53,548 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:27:53,548 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:53,549 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]
[2025-05-07 17:27:53,549 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:53,552 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:53,553 INFO  L85        PathProgramCache]: Analyzing trace with hash -879268658, now seen corresponding path program 1 times
[2025-05-07 17:27:53,558 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:53,558 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269118406]
[2025-05-07 17:27:53,558 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:53,559 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:53,610 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:27:53,631 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:27:53,631 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:53,631 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:53,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:53,863 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:53,863 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269118406]
[2025-05-07 17:27:53,864 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269118406] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:53,864 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:53,866 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:53,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289275555]
[2025-05-07 17:27:53,868 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:53,872 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:53,872 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:53,896 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:53,896 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:53,898 INFO  L87              Difference]: Start difference. First operand  has 82 states, 34 states have (on average 1.088235294117647) internal successors, (37), 37 states have internal predecessors, (37), 27 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 24 states have call predecessors, (28), 27 states have call successors, (28) Second operand  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:27:53,950 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:53,951 INFO  L93              Difference]: Finished difference Result 84 states and 95 transitions.
[2025-05-07 17:27:53,952 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:53,953 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 65
[2025-05-07 17:27:53,954 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:53,965 INFO  L225             Difference]: With dead ends: 84
[2025-05-07 17:27:53,965 INFO  L226             Difference]: Without dead ends: 80
[2025-05-07 17:27:53,968 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:53,970 INFO  L437           NwaCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:53,971 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 266 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:53,984 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2025-05-07 17:27:54,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78.
[2025-05-07 17:27:54,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 34 states have internal predecessors, (34), 25 states have call successors, (26), 20 states have call predecessors, (26), 20 states have return successors, (26), 23 states have call predecessors, (26), 25 states have call successors, (26)
[2025-05-07 17:27:54,006 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions.
[2025-05-07 17:27:54,007 INFO  L79                 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 65
[2025-05-07 17:27:54,007 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:54,008 INFO  L485      AbstractCegarLoop]: Abstraction has 78 states and 86 transitions.
[2025-05-07 17:27:54,008 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:27:54,008 INFO  L278                IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions.
[2025-05-07 17:27:54,010 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:27:54,010 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:54,011 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]
[2025-05-07 17:27:54,011 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:54,011 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:54,012 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:54,012 INFO  L85        PathProgramCache]: Analyzing trace with hash -590773302, now seen corresponding path program 1 times
[2025-05-07 17:27:54,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:54,012 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366693840]
[2025-05-07 17:27:54,012 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:54,012 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:54,056 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:27:54,101 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:27:54,101 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:54,101 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:54,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:54,249 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:54,250 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366693840]
[2025-05-07 17:27:54,250 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366693840] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:54,250 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:54,250 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:27:54,250 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204596919]
[2025-05-07 17:27:54,250 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:54,251 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:27:54,251 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:54,252 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:27:54,252 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:54,252 INFO  L87              Difference]: Start difference. First operand 78 states and 86 transitions. Second operand  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:27:54,318 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:54,318 INFO  L93              Difference]: Finished difference Result 78 states and 85 transitions.
[2025-05-07 17:27:54,319 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:27:54,319 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18) Word has length 65
[2025-05-07 17:27:54,319 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:54,320 INFO  L225             Difference]: With dead ends: 78
[2025-05-07 17:27:54,320 INFO  L226             Difference]: Without dead ends: 76
[2025-05-07 17:27:54,320 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:54,321 INFO  L437           NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:54,321 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 465 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:54,322 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2025-05-07 17:27:54,327 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76.
[2025-05-07 17:27:54,327 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 32 states have (on average 1.03125) internal successors, (33), 33 states have internal predecessors, (33), 23 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (24), 22 states have call predecessors, (24), 23 states have call successors, (24)
[2025-05-07 17:27:54,328 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions.
[2025-05-07 17:27:54,328 INFO  L79                 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 65
[2025-05-07 17:27:54,328 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:54,328 INFO  L485      AbstractCegarLoop]: Abstraction has 76 states and 81 transitions.
[2025-05-07 17:27:54,329 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:27:54,329 INFO  L278                IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions.
[2025-05-07 17:27:54,330 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:27:54,330 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:54,330 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]
[2025-05-07 17:27:54,330 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:54,330 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:54,330 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:54,330 INFO  L85        PathProgramCache]: Analyzing trace with hash 606373727, now seen corresponding path program 1 times
[2025-05-07 17:27:54,331 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:54,331 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401023646]
[2025-05-07 17:27:54,331 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:54,331 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:54,365 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:27:54,379 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:27:54,379 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:54,379 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:54,490 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:54,490 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:54,490 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401023646]
[2025-05-07 17:27:54,490 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401023646] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:54,490 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:54,490 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:54,490 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304769003]
[2025-05-07 17:27:54,491 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:54,491 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:54,491 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:54,492 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:54,492 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:54,492 INFO  L87              Difference]: Start difference. First operand 76 states and 81 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:27:54,525 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:54,525 INFO  L93              Difference]: Finished difference Result 81 states and 87 transitions.
[2025-05-07 17:27:54,526 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:54,526 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 68
[2025-05-07 17:27:54,526 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:54,527 INFO  L225             Difference]: With dead ends: 81
[2025-05-07 17:27:54,527 INFO  L226             Difference]: Without dead ends: 81
[2025-05-07 17:27:54,528 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:54,528 INFO  L437           NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 400 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 17:27:54,529 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 400 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:54,529 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2025-05-07 17:27:54,535 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81.
[2025-05-07 17:27:54,536 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 35 states have internal predecessors, (35), 24 states have call successors, (25), 20 states have call predecessors, (25), 22 states have return successors, (27), 25 states have call predecessors, (27), 24 states have call successors, (27)
[2025-05-07 17:27:54,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions.
[2025-05-07 17:27:54,537 INFO  L79                 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 68
[2025-05-07 17:27:54,538 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:54,538 INFO  L485      AbstractCegarLoop]: Abstraction has 81 states and 87 transitions.
[2025-05-07 17:27:54,538 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:27:54,538 INFO  L278                IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions.
[2025-05-07 17:27:54,539 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:27:54,539 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:54,539 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]
[2025-05-07 17:27:54,540 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:54,540 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:54,540 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:54,540 INFO  L85        PathProgramCache]: Analyzing trace with hash -1432866017, now seen corresponding path program 1 times
[2025-05-07 17:27:54,540 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:54,540 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727476369]
[2025-05-07 17:27:54,540 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:54,541 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:54,574 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:27:54,601 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:27:54,601 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:54,601 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:54,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:54,859 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:54,859 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727476369]
[2025-05-07 17:27:54,859 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727476369] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:54,859 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:54,859 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:54,859 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795000348]
[2025-05-07 17:27:54,859 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:54,859 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:54,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:54,860 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:54,860 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:54,860 INFO  L87              Difference]: Start difference. First operand 81 states and 87 transitions. Second operand  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:54,926 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:54,926 INFO  L93              Difference]: Finished difference Result 67 states and 70 transitions.
[2025-05-07 17:27:54,927 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:54,927 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:27:54,927 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:54,927 INFO  L225             Difference]: With dead ends: 67
[2025-05-07 17:27:54,927 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:54,928 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:54,928 INFO  L437           NwaCegarLoop]: 66 mSDtfsCounter, 1 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:54,929 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 445 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:54,929 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:54,929 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:54,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:54,930 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:54,930 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68
[2025-05-07 17:27:54,930 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:54,930 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:54,930 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:54,930 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:54,930 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:54,932 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:54,933 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:27:54,935 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:27:54,937 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:54,939 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:54 BoogieIcfgContainer
[2025-05-07 17:27:54,939 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:54,940 INFO  L158              Benchmark]: Toolchain (without parser) took 1911.22ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 81.7MB in the end (delta: 70.9MB). Peak memory consumption was 60.6MB. Max. memory is 33.6GB.
[2025-05-07 17:27:54,940 INFO  L158              Benchmark]: SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 171.6MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:54,940 INFO  L158              Benchmark]: ChcToBoogie took 28.37ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 150.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:54,941 INFO  L158              Benchmark]: Boogie Preprocessor took 50.28ms. Allocated memory is still 234.9MB. Free memory was 150.2MB in the beginning and 147.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:54,941 INFO  L158              Benchmark]: RCFGBuilder took 364.90ms. Allocated memory is still 234.9MB. Free memory was 147.2MB in the beginning and 191.0MB in the end (delta: -43.8MB). Peak memory consumption was 42.7MB. Max. memory is 33.6GB.
[2025-05-07 17:27:54,941 INFO  L158              Benchmark]: TraceAbstraction took 1463.69ms. Allocated memory is still 234.9MB. Free memory was 190.5MB in the beginning and 81.7MB in the end (delta: 108.7MB). Peak memory consumption was 101.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:54,942 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 171.6MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 28.37ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 150.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 50.28ms. Allocated memory is still 234.9MB. Free memory was 150.2MB in the beginning and 147.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 364.90ms. Allocated memory is still 234.9MB. Free memory was 147.2MB in the beginning and 191.0MB in the end (delta: -43.8MB). Peak memory consumption was 42.7MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1463.69ms. Allocated memory is still 234.9MB. Free memory was 190.5MB in the beginning and 81.7MB in the end (delta: 108.7MB). Peak memory consumption was 101.8MB. 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 21 procedures, 82 locations, 121 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1576 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1256 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 320 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:27:54,954 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
