/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:19:25,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:19:26,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 07:19:26,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:19:26,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:19:26,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:19:26,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:19:26,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:19:26,084 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:19:26,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:19:26,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:19:26,087 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:19:26,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:19:26,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:19:26,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:19:26,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:19:26,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:19:26,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:19:26,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:19:26,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:19:26,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:19:26,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:19:26,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:19:26,090 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:19:26,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:19:26,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:19:26,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:19:26,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:19:26,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:19:26,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:19:26,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:19:26,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:19:26,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:19:26,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:19:26,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:19:26,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:19:26,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:19:26,302 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:19:26,303 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:19:26,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-11-30 07:19:27,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:19:27,582 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:19:27,582 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-11-30 07:19:27,593 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57edcf1d/336b24d1117f45d8863a7748af865d1f/FLAG16fc93038 [2023-11-30 07:19:27,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57edcf1d/336b24d1117f45d8863a7748af865d1f [2023-11-30 07:19:27,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:19:27,604 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:19:27,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:19:27,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:19:27,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:19:27,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:19:27" (1/1) ... [2023-11-30 07:19:27,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6304e448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:27, skipping insertion in model container [2023-11-30 07:19:27,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:19:27" (1/1) ... [2023-11-30 07:19:27,642 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:19:27,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:19:27,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:19:28,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:19:28,063 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:19:28,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28 WrapperNode [2023-11-30 07:19:28,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:19:28,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:19:28,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:19:28,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:19:28,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,093 INFO L138 Inliner]: procedures = 365, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-11-30 07:19:28,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:19:28,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:19:28,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:19:28,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:19:28,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,104 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:19:28,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:19:28,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:19:28,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:19:28,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (1/1) ... [2023-11-30 07:19:28,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:19:28,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:28,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 07:19:28,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 07:19:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:19:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:19:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:19:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:19:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:19:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:19:28,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:19:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2023-11-30 07:19:28,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2023-11-30 07:19:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:19:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:19:28,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:19:28,167 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 07:19:28,271 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:19:28,273 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:19:28,432 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:19:28,448 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:19:28,448 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-30 07:19:28,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:19:28 BoogieIcfgContainer [2023-11-30 07:19:28,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:19:28,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:19:28,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:19:28,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:19:28,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:19:27" (1/3) ... [2023-11-30 07:19:28,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea211df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:19:28, skipping insertion in model container [2023-11-30 07:19:28,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:19:28" (2/3) ... [2023-11-30 07:19:28,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea211df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:19:28, skipping insertion in model container [2023-11-30 07:19:28,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:19:28" (3/3) ... [2023-11-30 07:19:28,455 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2023-11-30 07:19:28,466 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:19:28,467 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 07:19:28,467 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:19:28,499 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 07:19:28,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 110 transitions, 227 flow [2023-11-30 07:19:28,552 INFO L124 PetriNetUnfolderBase]: 8/109 cut-off events. [2023-11-30 07:19:28,553 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:19:28,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 109 events. 8/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 165 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2023-11-30 07:19:28,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 110 transitions, 227 flow [2023-11-30 07:19:28,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 83 transitions, 169 flow [2023-11-30 07:19:28,566 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:19:28,571 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@23433e2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:19:28,571 INFO L363 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-30 07:19:28,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:19:28,580 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-30 07:19:28,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:19:28,581 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:28,581 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:28,581 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:28,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:28,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1829958242, now seen corresponding path program 1 times [2023-11-30 07:19:28,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:28,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311302532] [2023-11-30 07:19:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:28,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:28,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:28,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:28,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311302532] [2023-11-30 07:19:28,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311302532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:28,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:28,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 07:19:28,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154822607] [2023-11-30 07:19:28,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:28,891 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:19:28,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:28,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:19:28,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:19:28,921 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 110 [2023-11-30 07:19:28,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2023-11-30 07:19:28,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:28,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 110 [2023-11-30 07:19:28,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:28,992 INFO L124 PetriNetUnfolderBase]: 52/272 cut-off events. [2023-11-30 07:19:28,992 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:19:28,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 272 events. 52/272 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1193 event pairs, 10 based on Foata normal form. 34/258 useless extension candidates. Maximal degree in co-relation 347. Up to 86 conditions per place. [2023-11-30 07:19:28,995 INFO L140 encePairwiseOnDemand]: 102/110 looper letters, 18 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-11-30 07:19:28,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 87 transitions, 219 flow [2023-11-30 07:19:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:19:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:19:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2023-11-30 07:19:29,003 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8606060606060606 [2023-11-30 07:19:29,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2023-11-30 07:19:29,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2023-11-30 07:19:29,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:29,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2023-11-30 07:19:29,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-11-30 07:19:29,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-30 07:19:29,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-30 07:19:29,013 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2023-11-30 07:19:29,014 INFO L500 AbstractCegarLoop]: Abstraction has has 84 places, 87 transitions, 219 flow [2023-11-30 07:19:29,014 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2023-11-30 07:19:29,014 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:29,014 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:29,014 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:19:29,014 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:29,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:29,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2119202701, now seen corresponding path program 1 times [2023-11-30 07:19:29,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:29,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554625582] [2023-11-30 07:19:29,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:29,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:29,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:29,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554625582] [2023-11-30 07:19:29,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554625582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:29,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:29,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:19:29,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636295891] [2023-11-30 07:19:29,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:29,085 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:19:29,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:29,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:19:29,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:19:29,088 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:29,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 87 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2023-11-30 07:19:29,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:29,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:29,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:29,229 INFO L124 PetriNetUnfolderBase]: 136/489 cut-off events. [2023-11-30 07:19:29,229 INFO L125 PetriNetUnfolderBase]: For 80/100 co-relation queries the response was YES. [2023-11-30 07:19:29,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 489 events. 136/489 cut-off events. For 80/100 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2582 event pairs, 43 based on Foata normal form. 0/389 useless extension candidates. Maximal degree in co-relation 918. Up to 188 conditions per place. [2023-11-30 07:19:29,236 INFO L140 encePairwiseOnDemand]: 103/110 looper letters, 38 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2023-11-30 07:19:29,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 105 transitions, 367 flow [2023-11-30 07:19:29,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:19:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:19:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 444 transitions. [2023-11-30 07:19:29,241 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8072727272727273 [2023-11-30 07:19:29,241 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 444 transitions. [2023-11-30 07:19:29,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 444 transitions. [2023-11-30 07:19:29,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:29,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 444 transitions. [2023-11-30 07:19:29,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2023-11-30 07:19:29,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:29,247 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:29,248 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2023-11-30 07:19:29,248 INFO L500 AbstractCegarLoop]: Abstraction has has 88 places, 105 transitions, 367 flow [2023-11-30 07:19:29,248 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2023-11-30 07:19:29,249 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:29,249 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:29,249 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:19:29,249 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:29,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2016007835, now seen corresponding path program 1 times [2023-11-30 07:19:29,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:29,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445023842] [2023-11-30 07:19:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:29,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:29,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:29,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445023842] [2023-11-30 07:19:29,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445023842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:29,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:29,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:19:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386927187] [2023-11-30 07:19:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:29,356 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:19:29,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:29,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:19:29,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:19:29,358 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2023-11-30 07:19:29,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 105 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2023-11-30 07:19:29,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:29,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2023-11-30 07:19:29,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:29,504 INFO L124 PetriNetUnfolderBase]: 260/869 cut-off events. [2023-11-30 07:19:29,505 INFO L125 PetriNetUnfolderBase]: For 368/470 co-relation queries the response was YES. [2023-11-30 07:19:29,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 869 events. 260/869 cut-off events. For 368/470 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5169 event pairs, 87 based on Foata normal form. 2/690 useless extension candidates. Maximal degree in co-relation 1974. Up to 375 conditions per place. [2023-11-30 07:19:29,512 INFO L140 encePairwiseOnDemand]: 103/110 looper letters, 34 selfloop transitions, 4 changer transitions 0/121 dead transitions. [2023-11-30 07:19:29,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 121 transitions, 515 flow [2023-11-30 07:19:29,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:19:29,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:19:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 444 transitions. [2023-11-30 07:19:29,516 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8072727272727273 [2023-11-30 07:19:29,516 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 444 transitions. [2023-11-30 07:19:29,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 444 transitions. [2023-11-30 07:19:29,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:29,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 444 transitions. [2023-11-30 07:19:29,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2023-11-30 07:19:29,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:29,518 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:29,519 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2023-11-30 07:19:29,519 INFO L500 AbstractCegarLoop]: Abstraction has has 92 places, 121 transitions, 515 flow [2023-11-30 07:19:29,520 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2023-11-30 07:19:29,520 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:29,520 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:29,520 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:19:29,520 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:29,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:29,521 INFO L85 PathProgramCache]: Analyzing trace with hash 838525202, now seen corresponding path program 1 times [2023-11-30 07:19:29,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:29,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076665900] [2023-11-30 07:19:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:29,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:29,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076665900] [2023-11-30 07:19:29,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076665900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:29,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:29,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:19:29,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133439826] [2023-11-30 07:19:29,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:29,608 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:19:29,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:29,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:19:29,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:19:29,609 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 110 [2023-11-30 07:19:29,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 121 transitions, 515 flow. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2023-11-30 07:19:29,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:29,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 110 [2023-11-30 07:19:29,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:29,742 INFO L124 PetriNetUnfolderBase]: 449/1464 cut-off events. [2023-11-30 07:19:29,742 INFO L125 PetriNetUnfolderBase]: For 1689/1949 co-relation queries the response was YES. [2023-11-30 07:19:29,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3911 conditions, 1464 events. 449/1464 cut-off events. For 1689/1949 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9271 event pairs, 197 based on Foata normal form. 6/1176 useless extension candidates. Maximal degree in co-relation 3866. Up to 638 conditions per place. [2023-11-30 07:19:29,749 INFO L140 encePairwiseOnDemand]: 103/110 looper letters, 54 selfloop transitions, 4 changer transitions 0/148 dead transitions. [2023-11-30 07:19:29,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 148 transitions, 811 flow [2023-11-30 07:19:29,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:19:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:19:29,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2023-11-30 07:19:29,751 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8236363636363636 [2023-11-30 07:19:29,751 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2023-11-30 07:19:29,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2023-11-30 07:19:29,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:29,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2023-11-30 07:19:29,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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) [2023-11-30 07:19:29,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:29,754 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:29,755 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 14 predicate places. [2023-11-30 07:19:29,755 INFO L500 AbstractCegarLoop]: Abstraction has has 96 places, 148 transitions, 811 flow [2023-11-30 07:19:29,755 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2023-11-30 07:19:29,755 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:29,755 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:29,755 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:19:29,756 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:29,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:29,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1483318507, now seen corresponding path program 1 times [2023-11-30 07:19:29,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:29,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533944455] [2023-11-30 07:19:29,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:29,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:29,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:29,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533944455] [2023-11-30 07:19:29,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533944455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:29,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:29,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:19:29,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311822509] [2023-11-30 07:19:29,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:29,848 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:19:29,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:19:29,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:19:29,849 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 110 [2023-11-30 07:19:29,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 148 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2023-11-30 07:19:29,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:29,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 110 [2023-11-30 07:19:29,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:29,914 INFO L124 PetriNetUnfolderBase]: 156/611 cut-off events. [2023-11-30 07:19:29,914 INFO L125 PetriNetUnfolderBase]: For 3161/3710 co-relation queries the response was YES. [2023-11-30 07:19:29,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 611 events. 156/611 cut-off events. For 3161/3710 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3267 event pairs, 58 based on Foata normal form. 59/546 useless extension candidates. Maximal degree in co-relation 1772. Up to 261 conditions per place. [2023-11-30 07:19:29,917 INFO L140 encePairwiseOnDemand]: 106/110 looper letters, 7 selfloop transitions, 36 changer transitions 0/133 dead transitions. [2023-11-30 07:19:29,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 133 transitions, 797 flow [2023-11-30 07:19:29,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:19:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:19:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-30 07:19:29,919 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8484848484848485 [2023-11-30 07:19:29,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-30 07:19:29,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-30 07:19:29,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:29,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-30 07:19:29,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-11-30 07:19:29,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-30 07:19:29,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-30 07:19:29,923 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 15 predicate places. [2023-11-30 07:19:29,923 INFO L500 AbstractCegarLoop]: Abstraction has has 97 places, 133 transitions, 797 flow [2023-11-30 07:19:29,924 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2023-11-30 07:19:29,924 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:29,924 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:29,924 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:19:29,924 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:29,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:29,925 INFO L85 PathProgramCache]: Analyzing trace with hash 999033946, now seen corresponding path program 1 times [2023-11-30 07:19:29,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:29,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047743419] [2023-11-30 07:19:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:29,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:30,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:30,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047743419] [2023-11-30 07:19:30,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047743419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:30,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:30,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 07:19:30,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125718910] [2023-11-30 07:19:30,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:30,010 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 07:19:30,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:30,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 07:19:30,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-30 07:19:30,011 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:30,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 133 transitions, 797 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2023-11-30 07:19:30,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:30,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:30,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:30,173 INFO L124 PetriNetUnfolderBase]: 232/1013 cut-off events. [2023-11-30 07:19:30,174 INFO L125 PetriNetUnfolderBase]: For 3676/4476 co-relation queries the response was YES. [2023-11-30 07:19:30,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3386 conditions, 1013 events. 232/1013 cut-off events. For 3676/4476 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6568 event pairs, 83 based on Foata normal form. 11/809 useless extension candidates. Maximal degree in co-relation 3329. Up to 417 conditions per place. [2023-11-30 07:19:30,178 INFO L140 encePairwiseOnDemand]: 102/110 looper letters, 94 selfloop transitions, 6 changer transitions 0/172 dead transitions. [2023-11-30 07:19:30,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 172 transitions, 1367 flow [2023-11-30 07:19:30,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 07:19:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 07:19:30,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 530 transitions. [2023-11-30 07:19:30,180 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.803030303030303 [2023-11-30 07:19:30,180 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 530 transitions. [2023-11-30 07:19:30,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 530 transitions. [2023-11-30 07:19:30,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:30,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 530 transitions. [2023-11-30 07:19:30,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 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) [2023-11-30 07:19:30,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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) [2023-11-30 07:19:30,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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) [2023-11-30 07:19:30,185 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 20 predicate places. [2023-11-30 07:19:30,185 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 172 transitions, 1367 flow [2023-11-30 07:19:30,185 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2023-11-30 07:19:30,185 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:30,185 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:30,186 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:19:30,186 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:30,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:30,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1357335363, now seen corresponding path program 1 times [2023-11-30 07:19:30,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:30,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302709700] [2023-11-30 07:19:30,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:30,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:30,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:30,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:30,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302709700] [2023-11-30 07:19:30,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302709700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:30,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:30,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 07:19:30,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359629858] [2023-11-30 07:19:30,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:30,249 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 07:19:30,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:30,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 07:19:30,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 07:19:30,250 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:30,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 172 transitions, 1367 flow. Second operand has 5 states, 5 states have (on average 81.6) internal successors, (408), 5 states have internal predecessors, (408), 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) [2023-11-30 07:19:30,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:30,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:30,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:30,361 INFO L124 PetriNetUnfolderBase]: 241/1028 cut-off events. [2023-11-30 07:19:30,361 INFO L125 PetriNetUnfolderBase]: For 5788/7349 co-relation queries the response was YES. [2023-11-30 07:19:30,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4009 conditions, 1028 events. 241/1028 cut-off events. For 5788/7349 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 6962 event pairs, 87 based on Foata normal form. 37/861 useless extension candidates. Maximal degree in co-relation 3948. Up to 465 conditions per place. [2023-11-30 07:19:30,366 INFO L140 encePairwiseOnDemand]: 101/110 looper letters, 101 selfloop transitions, 11 changer transitions 0/184 dead transitions. [2023-11-30 07:19:30,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 184 transitions, 1697 flow [2023-11-30 07:19:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:19:30,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:19:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 598 transitions. [2023-11-30 07:19:30,368 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7766233766233767 [2023-11-30 07:19:30,368 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 598 transitions. [2023-11-30 07:19:30,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 598 transitions. [2023-11-30 07:19:30,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:30,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 598 transitions. [2023-11-30 07:19:30,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.42857142857143) internal successors, (598), 7 states have internal predecessors, (598), 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) [2023-11-30 07:19:30,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2023-11-30 07:19:30,370 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2023-11-30 07:19:30,371 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 26 predicate places. [2023-11-30 07:19:30,371 INFO L500 AbstractCegarLoop]: Abstraction has has 108 places, 184 transitions, 1697 flow [2023-11-30 07:19:30,372 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.6) internal successors, (408), 5 states have internal predecessors, (408), 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) [2023-11-30 07:19:30,372 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:30,372 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:30,372 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:19:30,372 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:30,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:30,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1961186989, now seen corresponding path program 1 times [2023-11-30 07:19:30,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:30,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141198979] [2023-11-30 07:19:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:30,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:30,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:30,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141198979] [2023-11-30 07:19:30,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141198979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:30,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:30,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:19:30,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284239513] [2023-11-30 07:19:30,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:30,443 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:19:30,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:19:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:19:30,444 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:30,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 184 transitions, 1697 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2023-11-30 07:19:30,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:30,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:30,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:30,595 INFO L124 PetriNetUnfolderBase]: 233/1005 cut-off events. [2023-11-30 07:19:30,596 INFO L125 PetriNetUnfolderBase]: For 6711/7835 co-relation queries the response was YES. [2023-11-30 07:19:30,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4370 conditions, 1005 events. 233/1005 cut-off events. For 6711/7835 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6633 event pairs, 95 based on Foata normal form. 2/822 useless extension candidates. Maximal degree in co-relation 4305. Up to 447 conditions per place. [2023-11-30 07:19:30,600 INFO L140 encePairwiseOnDemand]: 103/110 looper letters, 103 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2023-11-30 07:19:30,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 182 transitions, 1899 flow [2023-11-30 07:19:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:19:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:19:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 592 transitions. [2023-11-30 07:19:30,602 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7688311688311689 [2023-11-30 07:19:30,602 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 592 transitions. [2023-11-30 07:19:30,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 592 transitions. [2023-11-30 07:19:30,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:30,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 592 transitions. [2023-11-30 07:19:30,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 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) [2023-11-30 07:19:30,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2023-11-30 07:19:30,605 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2023-11-30 07:19:30,606 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 29 predicate places. [2023-11-30 07:19:30,606 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 182 transitions, 1899 flow [2023-11-30 07:19:30,607 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2023-11-30 07:19:30,607 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:30,607 INFO L232 CegarLoopForPetriNet]: 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] [2023-11-30 07:19:30,607 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 07:19:30,607 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:30,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:30,607 INFO L85 PathProgramCache]: Analyzing trace with hash -427279756, now seen corresponding path program 1 times [2023-11-30 07:19:30,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:30,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055822871] [2023-11-30 07:19:30,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:30,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:30,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055822871] [2023-11-30 07:19:30,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055822871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:30,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:30,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:19:30,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448690111] [2023-11-30 07:19:30,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:30,663 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:19:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:30,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:19:30,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:19:30,664 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:30,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 182 transitions, 1899 flow. Second operand has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 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) [2023-11-30 07:19:30,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:30,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:30,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:30,858 INFO L124 PetriNetUnfolderBase]: 278/1152 cut-off events. [2023-11-30 07:19:30,859 INFO L125 PetriNetUnfolderBase]: For 10978/12651 co-relation queries the response was YES. [2023-11-30 07:19:30,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5688 conditions, 1152 events. 278/1152 cut-off events. For 10978/12651 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7917 event pairs, 98 based on Foata normal form. 13/943 useless extension candidates. Maximal degree in co-relation 5619. Up to 535 conditions per place. [2023-11-30 07:19:30,869 INFO L140 encePairwiseOnDemand]: 103/110 looper letters, 120 selfloop transitions, 13 changer transitions 0/205 dead transitions. [2023-11-30 07:19:30,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 205 transitions, 2495 flow [2023-11-30 07:19:30,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 07:19:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 07:19:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 690 transitions. [2023-11-30 07:19:30,871 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7840909090909091 [2023-11-30 07:19:30,871 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 690 transitions. [2023-11-30 07:19:30,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 690 transitions. [2023-11-30 07:19:30,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:30,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 690 transitions. [2023-11-30 07:19:30,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 86.25) internal successors, (690), 8 states have internal predecessors, (690), 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) [2023-11-30 07:19:30,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2023-11-30 07:19:30,875 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2023-11-30 07:19:30,876 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 36 predicate places. [2023-11-30 07:19:30,876 INFO L500 AbstractCegarLoop]: Abstraction has has 118 places, 205 transitions, 2495 flow [2023-11-30 07:19:30,876 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 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) [2023-11-30 07:19:30,876 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:30,876 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2023-11-30 07:19:30,876 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 07:19:30,877 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:30,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash 114178634, now seen corresponding path program 1 times [2023-11-30 07:19:30,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:30,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719335897] [2023-11-30 07:19:30,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:30,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:30,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:30,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719335897] [2023-11-30 07:19:30,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719335897] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:19:30,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355271008] [2023-11-30 07:19:30,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:30,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:30,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:30,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:19:30,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 07:19:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:31,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:19:31,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:19:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:31,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:19:31,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355271008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:31,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:19:31,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 07:19:31,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786072130] [2023-11-30 07:19:31,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:31,209 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:19:31,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:31,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:19:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 07:19:31,210 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2023-11-30 07:19:31,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 205 transitions, 2495 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 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) [2023-11-30 07:19:31,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:31,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2023-11-30 07:19:31,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:31,437 INFO L124 PetriNetUnfolderBase]: 260/1016 cut-off events. [2023-11-30 07:19:31,437 INFO L125 PetriNetUnfolderBase]: For 14506/16748 co-relation queries the response was YES. [2023-11-30 07:19:31,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5433 conditions, 1016 events. 260/1016 cut-off events. For 14506/16748 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6785 event pairs, 55 based on Foata normal form. 76/907 useless extension candidates. Maximal degree in co-relation 5360. Up to 457 conditions per place. [2023-11-30 07:19:31,445 INFO L140 encePairwiseOnDemand]: 105/110 looper letters, 94 selfloop transitions, 6 changer transitions 0/213 dead transitions. [2023-11-30 07:19:31,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 213 transitions, 2871 flow [2023-11-30 07:19:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:19:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:19:31,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 609 transitions. [2023-11-30 07:19:31,447 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7909090909090909 [2023-11-30 07:19:31,447 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 609 transitions. [2023-11-30 07:19:31,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 609 transitions. [2023-11-30 07:19:31,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:31,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 609 transitions. [2023-11-30 07:19:31,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 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) [2023-11-30 07:19:31,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2023-11-30 07:19:31,450 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2023-11-30 07:19:31,450 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 41 predicate places. [2023-11-30 07:19:31,451 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 213 transitions, 2871 flow [2023-11-30 07:19:31,451 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 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) [2023-11-30 07:19:31,451 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:31,451 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2023-11-30 07:19:31,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 07:19:31,659 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-30 07:19:31,659 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:31,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:31,660 INFO L85 PathProgramCache]: Analyzing trace with hash -755429437, now seen corresponding path program 1 times [2023-11-30 07:19:31,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:31,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416898315] [2023-11-30 07:19:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:31,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:19:31,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:31,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416898315] [2023-11-30 07:19:31,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416898315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:31,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:31,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:19:31,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481304975] [2023-11-30 07:19:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:31,706 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:19:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:19:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:19:31,707 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2023-11-30 07:19:31,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 213 transitions, 2871 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2023-11-30 07:19:31,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:31,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2023-11-30 07:19:31,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:31,842 INFO L124 PetriNetUnfolderBase]: 265/1012 cut-off events. [2023-11-30 07:19:31,842 INFO L125 PetriNetUnfolderBase]: For 19104/22149 co-relation queries the response was YES. [2023-11-30 07:19:31,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5846 conditions, 1012 events. 265/1012 cut-off events. For 19104/22149 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6601 event pairs, 56 based on Foata normal form. 104/955 useless extension candidates. Maximal degree in co-relation 5769. Up to 452 conditions per place. [2023-11-30 07:19:31,851 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 106 selfloop transitions, 8 changer transitions 0/227 dead transitions. [2023-11-30 07:19:31,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 227 transitions, 3423 flow [2023-11-30 07:19:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:19:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:19:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 433 transitions. [2023-11-30 07:19:31,852 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7872727272727272 [2023-11-30 07:19:31,852 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 433 transitions. [2023-11-30 07:19:31,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 433 transitions. [2023-11-30 07:19:31,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:31,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 433 transitions. [2023-11-30 07:19:31,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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) [2023-11-30 07:19:31,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:31,854 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:31,855 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 44 predicate places. [2023-11-30 07:19:31,855 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 227 transitions, 3423 flow [2023-11-30 07:19:31,855 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2023-11-30 07:19:31,855 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:31,855 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2023-11-30 07:19:31,855 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 07:19:31,856 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:31,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:31,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1791286149, now seen corresponding path program 1 times [2023-11-30 07:19:31,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:31,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274996944] [2023-11-30 07:19:31,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:31,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:31,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:31,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274996944] [2023-11-30 07:19:31,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274996944] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:19:31,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439390364] [2023-11-30 07:19:31,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:31,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:31,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:31,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:19:31,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 07:19:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:32,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 07:19:32,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:19:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:32,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:19:32,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439390364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:32,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:19:32,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-30 07:19:32,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051778185] [2023-11-30 07:19:32,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:32,066 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 07:19:32,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:32,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 07:19:32,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:19:32,067 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 110 [2023-11-30 07:19:32,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 227 transitions, 3423 flow. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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) [2023-11-30 07:19:32,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:32,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 110 [2023-11-30 07:19:32,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:32,183 INFO L124 PetriNetUnfolderBase]: 248/970 cut-off events. [2023-11-30 07:19:32,184 INFO L125 PetriNetUnfolderBase]: For 19828/22711 co-relation queries the response was YES. [2023-11-30 07:19:32,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5967 conditions, 970 events. 248/970 cut-off events. For 19828/22711 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6214 event pairs, 33 based on Foata normal form. 42/873 useless extension candidates. Maximal degree in co-relation 5888. Up to 422 conditions per place. [2023-11-30 07:19:32,191 INFO L140 encePairwiseOnDemand]: 106/110 looper letters, 115 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2023-11-30 07:19:32,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 232 transitions, 3803 flow [2023-11-30 07:19:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:19:32,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:19:32,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2023-11-30 07:19:32,192 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2023-11-30 07:19:32,192 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 356 transitions. [2023-11-30 07:19:32,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 356 transitions. [2023-11-30 07:19:32,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:32,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 356 transitions. [2023-11-30 07:19:32,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-30 07:19:32,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 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) [2023-11-30 07:19:32,194 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 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) [2023-11-30 07:19:32,194 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 46 predicate places. [2023-11-30 07:19:32,194 INFO L500 AbstractCegarLoop]: Abstraction has has 128 places, 232 transitions, 3803 flow [2023-11-30 07:19:32,195 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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) [2023-11-30 07:19:32,195 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:32,195 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 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] [2023-11-30 07:19:32,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-30 07:19:32,404 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-30 07:19:32,405 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:32,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:32,405 INFO L85 PathProgramCache]: Analyzing trace with hash 562734848, now seen corresponding path program 1 times [2023-11-30 07:19:32,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:32,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714134094] [2023-11-30 07:19:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:32,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:32,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:32,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714134094] [2023-11-30 07:19:32,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714134094] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:19:32,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467180818] [2023-11-30 07:19:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:32,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:32,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:32,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:19:32,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 07:19:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:32,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:19:32,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:19:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:32,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:19:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:32,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467180818] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:19:32,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:19:32,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-30 07:19:32,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864949409] [2023-11-30 07:19:32,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:19:32,649 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-30 07:19:32,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-30 07:19:32,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-30 07:19:32,651 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:32,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 232 transitions, 3803 flow. Second operand has 11 states, 11 states have (on average 82.81818181818181) internal successors, (911), 11 states have internal predecessors, (911), 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) [2023-11-30 07:19:32,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:32,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:32,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:32,910 INFO L124 PetriNetUnfolderBase]: 380/1395 cut-off events. [2023-11-30 07:19:32,910 INFO L125 PetriNetUnfolderBase]: For 28519/32924 co-relation queries the response was YES. [2023-11-30 07:19:32,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9554 conditions, 1395 events. 380/1395 cut-off events. For 28519/32924 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 9362 event pairs, 51 based on Foata normal form. 46/1249 useless extension candidates. Maximal degree in co-relation 9471. Up to 642 conditions per place. [2023-11-30 07:19:32,926 INFO L140 encePairwiseOnDemand]: 101/110 looper letters, 222 selfloop transitions, 43 changer transitions 0/334 dead transitions. [2023-11-30 07:19:32,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 334 transitions, 6437 flow [2023-11-30 07:19:32,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-30 07:19:32,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-30 07:19:32,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1533 transitions. [2023-11-30 07:19:32,929 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7742424242424243 [2023-11-30 07:19:32,929 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1533 transitions. [2023-11-30 07:19:32,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1533 transitions. [2023-11-30 07:19:32,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:32,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1533 transitions. [2023-11-30 07:19:32,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 85.16666666666667) internal successors, (1533), 18 states have internal predecessors, (1533), 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) [2023-11-30 07:19:32,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 110.0) internal successors, (2090), 19 states have internal predecessors, (2090), 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) [2023-11-30 07:19:32,935 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 110.0) internal successors, (2090), 19 states have internal predecessors, (2090), 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) [2023-11-30 07:19:32,935 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 63 predicate places. [2023-11-30 07:19:32,936 INFO L500 AbstractCegarLoop]: Abstraction has has 145 places, 334 transitions, 6437 flow [2023-11-30 07:19:32,936 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.81818181818181) internal successors, (911), 11 states have internal predecessors, (911), 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) [2023-11-30 07:19:32,936 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:32,936 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2023-11-30 07:19:32,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 07:19:33,140 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:33,141 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:33,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:33,141 INFO L85 PathProgramCache]: Analyzing trace with hash -304703902, now seen corresponding path program 1 times [2023-11-30 07:19:33,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:33,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310829418] [2023-11-30 07:19:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:33,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:19:33,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:33,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310829418] [2023-11-30 07:19:33,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310829418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:19:33,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:19:33,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:19:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869360514] [2023-11-30 07:19:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:19:33,247 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:19:33,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:33,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:19:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:19:33,248 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 110 [2023-11-30 07:19:33,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 334 transitions, 6437 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2023-11-30 07:19:33,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:33,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 110 [2023-11-30 07:19:33,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:33,445 INFO L124 PetriNetUnfolderBase]: 374/1536 cut-off events. [2023-11-30 07:19:33,445 INFO L125 PetriNetUnfolderBase]: For 27666/30714 co-relation queries the response was YES. [2023-11-30 07:19:33,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10627 conditions, 1536 events. 374/1536 cut-off events. For 27666/30714 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10458 event pairs, 67 based on Foata normal form. 53/1404 useless extension candidates. Maximal degree in co-relation 10542. Up to 674 conditions per place. [2023-11-30 07:19:33,456 INFO L140 encePairwiseOnDemand]: 104/110 looper letters, 189 selfloop transitions, 8 changer transitions 0/352 dead transitions. [2023-11-30 07:19:33,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 352 transitions, 7357 flow [2023-11-30 07:19:33,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:19:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:19:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 442 transitions. [2023-11-30 07:19:33,458 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8036363636363636 [2023-11-30 07:19:33,458 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 442 transitions. [2023-11-30 07:19:33,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 442 transitions. [2023-11-30 07:19:33,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:33,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 442 transitions. [2023-11-30 07:19:33,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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) [2023-11-30 07:19:33,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:33,460 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2023-11-30 07:19:33,460 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 66 predicate places. [2023-11-30 07:19:33,460 INFO L500 AbstractCegarLoop]: Abstraction has has 148 places, 352 transitions, 7357 flow [2023-11-30 07:19:33,460 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2023-11-30 07:19:33,460 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:33,461 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:19:33,461 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 07:19:33,461 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:33,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1382891041, now seen corresponding path program 1 times [2023-11-30 07:19:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:33,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106038764] [2023-11-30 07:19:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:33,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:33,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106038764] [2023-11-30 07:19:33,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106038764] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:19:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777530267] [2023-11-30 07:19:33,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:33,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:33,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:33,536 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:19:33,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 07:19:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:33,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 07:19:33,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:19:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:33,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:19:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777530267] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:19:33,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:19:33,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-30 07:19:33,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314280121] [2023-11-30 07:19:33,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:19:33,709 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-30 07:19:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-30 07:19:33,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-30 07:19:33,711 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:33,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 352 transitions, 7357 flow. Second operand has 14 states, 14 states have (on average 82.21428571428571) internal successors, (1151), 14 states have internal predecessors, (1151), 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) [2023-11-30 07:19:33,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:33,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:33,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:34,510 INFO L124 PetriNetUnfolderBase]: 870/3760 cut-off events. [2023-11-30 07:19:34,510 INFO L125 PetriNetUnfolderBase]: For 69701/75774 co-relation queries the response was YES. [2023-11-30 07:19:34,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26895 conditions, 3760 events. 870/3760 cut-off events. For 69701/75774 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 33859 event pairs, 162 based on Foata normal form. 84/3374 useless extension candidates. Maximal degree in co-relation 26806. Up to 1560 conditions per place. [2023-11-30 07:19:34,537 INFO L140 encePairwiseOnDemand]: 102/110 looper letters, 582 selfloop transitions, 84 changer transitions 0/734 dead transitions. [2023-11-30 07:19:34,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 734 transitions, 18571 flow [2023-11-30 07:19:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-30 07:19:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-30 07:19:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2325 transitions. [2023-11-30 07:19:34,542 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7828282828282829 [2023-11-30 07:19:34,542 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2325 transitions. [2023-11-30 07:19:34,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2325 transitions. [2023-11-30 07:19:34,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:34,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2325 transitions. [2023-11-30 07:19:34,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 86.11111111111111) internal successors, (2325), 27 states have internal predecessors, (2325), 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) [2023-11-30 07:19:34,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 110.0) internal successors, (3080), 28 states have internal predecessors, (3080), 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) [2023-11-30 07:19:34,551 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 110.0) internal successors, (3080), 28 states have internal predecessors, (3080), 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) [2023-11-30 07:19:34,552 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 92 predicate places. [2023-11-30 07:19:34,552 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 734 transitions, 18571 flow [2023-11-30 07:19:34,552 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 82.21428571428571) internal successors, (1151), 14 states have internal predecessors, (1151), 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) [2023-11-30 07:19:34,552 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:34,552 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2023-11-30 07:19:34,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-30 07:19:34,757 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-30 07:19:34,757 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:34,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1545696970, now seen corresponding path program 1 times [2023-11-30 07:19:34,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:34,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310354053] [2023-11-30 07:19:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:34,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:34,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:34,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310354053] [2023-11-30 07:19:34,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310354053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:19:34,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879702214] [2023-11-30 07:19:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:34,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:34,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:34,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:19:34,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 07:19:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:34,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-30 07:19:34,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:19:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:35,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:19:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:35,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879702214] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:19:35,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:19:35,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-30 07:19:35,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010572048] [2023-11-30 07:19:35,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:19:35,158 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-30 07:19:35,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:35,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-30 07:19:35,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-11-30 07:19:35,159 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:35,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 734 transitions, 18571 flow. Second operand has 19 states, 19 states have (on average 82.47368421052632) internal successors, (1567), 19 states have internal predecessors, (1567), 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) [2023-11-30 07:19:35,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:35,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:35,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:37,909 INFO L124 PetriNetUnfolderBase]: 2190/10128 cut-off events. [2023-11-30 07:19:37,909 INFO L125 PetriNetUnfolderBase]: For 196933/210004 co-relation queries the response was YES. [2023-11-30 07:19:37,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74496 conditions, 10128 events. 2190/10128 cut-off events. For 196933/210004 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 102433 event pairs, 518 based on Foata normal form. 169/9137 useless extension candidates. Maximal degree in co-relation 74403. Up to 4472 conditions per place. [2023-11-30 07:19:38,007 INFO L140 encePairwiseOnDemand]: 101/110 looper letters, 1393 selfloop transitions, 208 changer transitions 0/1669 dead transitions. [2023-11-30 07:19:38,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 1669 transitions, 48097 flow [2023-11-30 07:19:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-30 07:19:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2023-11-30 07:19:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 4460 transitions. [2023-11-30 07:19:38,011 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7797202797202797 [2023-11-30 07:19:38,011 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 4460 transitions. [2023-11-30 07:19:38,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 4460 transitions. [2023-11-30 07:19:38,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:38,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 4460 transitions. [2023-11-30 07:19:38,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 85.76923076923077) internal successors, (4460), 52 states have internal predecessors, (4460), 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) [2023-11-30 07:19:38,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 110.0) internal successors, (5830), 53 states have internal predecessors, (5830), 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) [2023-11-30 07:19:38,026 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 110.0) internal successors, (5830), 53 states have internal predecessors, (5830), 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) [2023-11-30 07:19:38,026 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 143 predicate places. [2023-11-30 07:19:38,026 INFO L500 AbstractCegarLoop]: Abstraction has has 225 places, 1669 transitions, 48097 flow [2023-11-30 07:19:38,027 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 82.47368421052632) internal successors, (1567), 19 states have internal predecessors, (1567), 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) [2023-11-30 07:19:38,027 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:38,027 INFO L232 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-30 07:19:38,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 07:19:38,232 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-30 07:19:38,232 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:38,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:38,233 INFO L85 PathProgramCache]: Analyzing trace with hash -326436727, now seen corresponding path program 1 times [2023-11-30 07:19:38,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:38,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795876687] [2023-11-30 07:19:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:38,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:38,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:38,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795876687] [2023-11-30 07:19:38,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795876687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:19:38,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057211815] [2023-11-30 07:19:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:38,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:38,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:38,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:19:38,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 07:19:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:38,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-30 07:19:38,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:19:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:38,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:19:39,025 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:39,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057211815] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:19:39,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:19:39,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2023-11-30 07:19:39,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422856563] [2023-11-30 07:19:39,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:19:39,027 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-30 07:19:39,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:39,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-30 07:19:39,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2023-11-30 07:19:39,029 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:39,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 1669 transitions, 48097 flow. Second operand has 30 states, 30 states have (on average 82.1) internal successors, (2463), 30 states have internal predecessors, (2463), 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) [2023-11-30 07:19:39,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:39,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:39,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:19:43,385 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1330-->L1330-3: Formula: (and (= |v_thread_function_mutexThread1of1ForFork0_#t~nondet34_1| 0) (= |v_#pthreadsMutex_29| (store |v_#pthreadsMutex_30| |v_~#mymutex~0.base_21| (store (select |v_#pthreadsMutex_30| |v_~#mymutex~0.base_21|) |v_~#mymutex~0.offset_21| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_30|, ~#mymutex~0.offset=|v_~#mymutex~0.offset_21|, ~#mymutex~0.base=|v_~#mymutex~0.base_21|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_29|, ~#mymutex~0.offset=|v_~#mymutex~0.offset_21|, ~#mymutex~0.base=|v_~#mymutex~0.base_21|, thread_function_mutexThread1of1ForFork0_#t~nondet34=|v_thread_function_mutexThread1of1ForFork0_#t~nondet34_1|} AuxVars[] AssignedVars[#pthreadsMutex, thread_function_mutexThread1of1ForFork0_#t~nondet34][1695], [120#true, 113#true, 2838#(and (<= ~myglobal~0 2147483642) (<= thread_function_mutexThread1of1ForFork0_~j~0 2147483642)), 41#L1330-3true, 63#L1347-8true, 134#true, 186#(<= 1 |ULTIMATE.start_main_~i~1#1|), thread_function_mutexThread1of1ForFork0InUse, 109#true, 554#true, 946#(<= thread_function_mutexThread1of1ForFork0_~i~0 19), 167#(and (<= 1 thread_function_mutexThread1of1ForFork0_~j~0) (<= 1 ~myglobal~0)), 952#true, 146#true, 509#(<= 0 (+ thread_function_mutexThread1of1ForFork0_~i~0 2147483648)), 1371#true, 169#true, 356#true, 127#true, 144#(and (<= 1 thread_function_mutexThread1of1ForFork0_~j~0) (<= 1 ~myglobal~0))]) [2023-11-30 07:19:43,385 INFO L294 olderBase$Statistics]: this new event has 143 ancestors and is cut-off event [2023-11-30 07:19:43,385 INFO L297 olderBase$Statistics]: existing Event has 140 ancestors and is cut-off event [2023-11-30 07:19:43,385 INFO L297 olderBase$Statistics]: existing Event has 143 ancestors and is cut-off event [2023-11-30 07:19:43,385 INFO L297 olderBase$Statistics]: existing Event has 143 ancestors and is cut-off event [2023-11-30 07:19:43,386 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([291] L1330-->L1330-3: Formula: (and (= |v_thread_function_mutexThread1of1ForFork0_#t~nondet34_1| 0) (= |v_#pthreadsMutex_29| (store |v_#pthreadsMutex_30| |v_~#mymutex~0.base_21| (store (select |v_#pthreadsMutex_30| |v_~#mymutex~0.base_21|) |v_~#mymutex~0.offset_21| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_30|, ~#mymutex~0.offset=|v_~#mymutex~0.offset_21|, ~#mymutex~0.base=|v_~#mymutex~0.base_21|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_29|, ~#mymutex~0.offset=|v_~#mymutex~0.offset_21|, ~#mymutex~0.base=|v_~#mymutex~0.base_21|, thread_function_mutexThread1of1ForFork0_#t~nondet34=|v_thread_function_mutexThread1of1ForFork0_#t~nondet34_1|} AuxVars[] AssignedVars[#pthreadsMutex, thread_function_mutexThread1of1ForFork0_#t~nondet34][1695], [120#true, 113#true, 2838#(and (<= ~myglobal~0 2147483642) (<= thread_function_mutexThread1of1ForFork0_~j~0 2147483642)), 80#L1347-7true, 41#L1330-3true, 134#true, 186#(<= 1 |ULTIMATE.start_main_~i~1#1|), thread_function_mutexThread1of1ForFork0InUse, 109#true, 554#true, 946#(<= thread_function_mutexThread1of1ForFork0_~i~0 19), 167#(and (<= 1 thread_function_mutexThread1of1ForFork0_~j~0) (<= 1 ~myglobal~0)), 952#true, 146#true, 1371#true, 509#(<= 0 (+ thread_function_mutexThread1of1ForFork0_~i~0 2147483648)), 169#true, 356#true, 127#true, 144#(and (<= 1 thread_function_mutexThread1of1ForFork0_~j~0) (<= 1 ~myglobal~0))]) [2023-11-30 07:19:43,386 INFO L294 olderBase$Statistics]: this new event has 142 ancestors and is cut-off event [2023-11-30 07:19:43,386 INFO L297 olderBase$Statistics]: existing Event has 142 ancestors and is cut-off event [2023-11-30 07:19:43,386 INFO L297 olderBase$Statistics]: existing Event has 139 ancestors and is cut-off event [2023-11-30 07:19:43,386 INFO L297 olderBase$Statistics]: existing Event has 142 ancestors and is cut-off event [2023-11-30 07:19:53,565 INFO L124 PetriNetUnfolderBase]: 7248/33260 cut-off events. [2023-11-30 07:19:53,565 INFO L125 PetriNetUnfolderBase]: For 706411/742650 co-relation queries the response was YES. [2023-11-30 07:19:53,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255164 conditions, 33260 events. 7248/33260 cut-off events. For 706411/742650 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 398732 event pairs, 1706 based on Foata normal form. 461/29806 useless extension candidates. Maximal degree in co-relation 255067. Up to 16116 conditions per place. [2023-11-30 07:19:53,976 INFO L140 encePairwiseOnDemand]: 101/110 looper letters, 4444 selfloop transitions, 616 changer transitions 0/5128 dead transitions. [2023-11-30 07:19:53,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 5128 transitions, 163593 flow [2023-11-30 07:19:53,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-11-30 07:19:53,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2023-11-30 07:19:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 10435 transitions. [2023-11-30 07:19:53,983 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7839969947407964 [2023-11-30 07:19:53,984 INFO L72 ComplementDD]: Start complementDD. Operand 121 states and 10435 transitions. [2023-11-30 07:19:53,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 10435 transitions. [2023-11-30 07:19:53,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:19:53,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 121 states and 10435 transitions. [2023-11-30 07:19:53,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 122 states, 121 states have (on average 86.2396694214876) internal successors, (10435), 121 states have internal predecessors, (10435), 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) [2023-11-30 07:19:54,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 122 states, 122 states have (on average 110.0) internal successors, (13420), 122 states have internal predecessors, (13420), 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) [2023-11-30 07:19:54,013 INFO L81 ComplementDD]: Finished complementDD. Result has 122 states, 122 states have (on average 110.0) internal successors, (13420), 122 states have internal predecessors, (13420), 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) [2023-11-30 07:19:54,013 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 263 predicate places. [2023-11-30 07:19:54,013 INFO L500 AbstractCegarLoop]: Abstraction has has 345 places, 5128 transitions, 163593 flow [2023-11-30 07:19:54,014 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 82.1) internal successors, (2463), 30 states have internal predecessors, (2463), 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) [2023-11-30 07:19:54,014 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:19:54,014 INFO L232 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 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] [2023-11-30 07:19:54,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-30 07:19:54,218 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 07:19:54,218 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:19:54,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:19:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash -930065383, now seen corresponding path program 2 times [2023-11-30 07:19:54,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:19:54,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589876] [2023-11-30 07:19:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:19:54,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:19:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:19:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:54,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:19:54,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589876] [2023-11-30 07:19:54,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589876] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:19:54,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055558476] [2023-11-30 07:19:54,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 07:19:54,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:19:54,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:19:54,572 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:19:54,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 07:19:54,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 07:19:54,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:19:54,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-30 07:19:54,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:19:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:54,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:19:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:19:55,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055558476] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:19:55,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:19:55,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 36 [2023-11-30 07:19:55,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13804459] [2023-11-30 07:19:55,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:19:55,331 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-30 07:19:55,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:19:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-30 07:19:55,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=450, Invalid=882, Unknown=0, NotChecked=0, Total=1332 [2023-11-30 07:19:55,334 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:19:55,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 5128 transitions, 163593 flow. Second operand has 37 states, 37 states have (on average 83.0) internal successors, (3071), 37 states have internal predecessors, (3071), 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) [2023-11-30 07:19:55,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:19:55,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:19:55,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:16,580 INFO L124 PetriNetUnfolderBase]: 24560/119492 cut-off events. [2023-11-30 07:22:16,581 INFO L125 PetriNetUnfolderBase]: For 2666530/2765417 co-relation queries the response was YES. [2023-11-30 07:22:17,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943448 conditions, 119492 events. 24560/119492 cut-off events. For 2666530/2765417 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 1661851 event pairs, 6567 based on Foata normal form. 1560/106908 useless extension candidates. Maximal degree in co-relation 943347. Up to 60811 conditions per place. [2023-11-30 07:22:18,088 INFO L140 encePairwiseOnDemand]: 102/110 looper letters, 15509 selfloop transitions, 2426 changer transitions 0/18003 dead transitions. [2023-11-30 07:22:18,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 18003 transitions, 608129 flow [2023-11-30 07:22:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2023-11-30 07:22:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2023-11-30 07:22:18,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 13355 transitions. [2023-11-30 07:22:18,098 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7782634032634033 [2023-11-30 07:22:18,098 INFO L72 ComplementDD]: Start complementDD. Operand 156 states and 13355 transitions. [2023-11-30 07:22:18,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 13355 transitions. [2023-11-30 07:22:18,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:18,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 156 states and 13355 transitions. [2023-11-30 07:22:18,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 157 states, 156 states have (on average 85.60897435897436) internal successors, (13355), 156 states have internal predecessors, (13355), 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) [2023-11-30 07:22:18,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 157 states, 157 states have (on average 110.0) internal successors, (17270), 157 states have internal predecessors, (17270), 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) [2023-11-30 07:22:18,127 INFO L81 ComplementDD]: Finished complementDD. Result has 157 states, 157 states have (on average 110.0) internal successors, (17270), 157 states have internal predecessors, (17270), 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) [2023-11-30 07:22:18,128 INFO L307 CegarLoopForPetriNet]: 82 programPoint places, 418 predicate places. [2023-11-30 07:22:18,128 INFO L500 AbstractCegarLoop]: Abstraction has has 500 places, 18003 transitions, 608129 flow [2023-11-30 07:22:18,128 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 83.0) internal successors, (3071), 37 states have internal predecessors, (3071), 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) [2023-11-30 07:22:18,129 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:18,129 INFO L232 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2023-11-30 07:22:18,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-30 07:22:18,333 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:18,334 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 07:22:18,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:18,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1802640424, now seen corresponding path program 2 times [2023-11-30 07:22:18,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:18,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567673448] [2023-11-30 07:22:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:18,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:18,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:18,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567673448] [2023-11-30 07:22:18,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567673448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:18,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781508947] [2023-11-30 07:22:18,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 07:22:18,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:18,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:18,756 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 07:22:18,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 07:22:18,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 07:22:18,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:22:18,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-30 07:22:18,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:19,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:19,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781508947] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:19,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:19,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 42 [2023-11-30 07:22:19,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701653514] [2023-11-30 07:22:19,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:19,515 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-11-30 07:22:19,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:19,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-11-30 07:22:19,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=525, Invalid=1281, Unknown=0, NotChecked=0, Total=1806 [2023-11-30 07:22:19,519 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2023-11-30 07:22:19,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 18003 transitions, 608129 flow. Second operand has 43 states, 43 states have (on average 82.5813953488372) internal successors, (3551), 43 states have internal predecessors, (3551), 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) [2023-11-30 07:22:19,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:19,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2023-11-30 07:22:19,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-30 07:33:11,384 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 07:33:11,386 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 07:33:12,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2023-11-30 07:33:12,239 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-11-30 07:33:12,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-30 07:33:12,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-30 07:33:12,446 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:33:12,446 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-11-30 07:33:12,448 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-11-30 07:33:12,449 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:33:12,452 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:33:12,452 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:33:12,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:33:12 BasicIcfg [2023-11-30 07:33:12,455 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:33:12,455 INFO L158 Benchmark]: Toolchain (without parser) took 824851.08ms. Allocated memory was 511.7MB in the beginning and 4.8GB in the end (delta: 4.3GB). Free memory was 464.8MB in the beginning and 1.4GB in the end (delta: -892.4MB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2023-11-30 07:33:12,455 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 341.8MB. Free memory was 291.7MB in the beginning and 291.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:33:12,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.31ms. Allocated memory is still 511.7MB. Free memory was 464.5MB in the beginning and 426.3MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-11-30 07:33:12,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.63ms. Allocated memory is still 511.7MB. Free memory was 426.3MB in the beginning and 423.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:33:12,456 INFO L158 Benchmark]: Boogie Preprocessor took 15.99ms. Allocated memory is still 511.7MB. Free memory was 423.6MB in the beginning and 422.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:33:12,456 INFO L158 Benchmark]: RCFGBuilder took 339.26ms. Allocated memory is still 511.7MB. Free memory was 422.2MB in the beginning and 468.7MB in the end (delta: -46.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. [2023-11-30 07:33:12,456 INFO L158 Benchmark]: TraceAbstraction took 824003.93ms. Allocated memory was 511.7MB in the beginning and 4.8GB in the end (delta: 4.3GB). Free memory was 467.6MB in the beginning and 1.4GB in the end (delta: -889.6MB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2023-11-30 07:33:12,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 341.8MB. Free memory was 291.7MB in the beginning and 291.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 459.31ms. Allocated memory is still 511.7MB. Free memory was 464.5MB in the beginning and 426.3MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.63ms. Allocated memory is still 511.7MB. Free memory was 426.3MB in the beginning and 423.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.99ms. Allocated memory is still 511.7MB. Free memory was 423.6MB in the beginning and 422.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 339.26ms. Allocated memory is still 511.7MB. Free memory was 422.2MB in the beginning and 468.7MB in the end (delta: -46.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. * TraceAbstraction took 824003.93ms. Allocated memory was 511.7MB in the beginning and 4.8GB in the end (delta: 4.3GB). Free memory was 467.6MB in the beginning and 1.4GB in the end (delta: -889.6MB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1327]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1350]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1350]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1347]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1347]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1343]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1327]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1323]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - TimeoutResultAtElement [Line: 1323]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 79/110 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 999888 conditions, 118235 events (24138/118234 cut-off events. For 3191269/3318617 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 1899129 event pairs, 6336 based on Foata normal form. 2458/109266 useless extension candidates. Maximal degree in co-relation 999783. Up to 56889 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 131 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 823.9s, OverallIterations: 19, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 816.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4395 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4395 mSDsluCounter, 419 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 297 mSDsCounter, 246 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3908 IncrementalHoareTripleChecker+Invalid, 4154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 246 mSolverCounterUnsat, 122 mSDtfsCounter, 3908 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2116 GetRequests, 1505 SyntacticMatches, 0 SemanticMatches, 611 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32358 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608129occurred in iteration=18, InterpolantAutomatonStates: 444, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2202 NumberOfCodeBlocks, 2202 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2900 ConstructedInterpolants, 0 QuantifiedInterpolants, 7060 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1948 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 33 InterpolantComputations, 13 PerfectInterpolantSequences, 48/3869 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown