/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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 -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:01:58,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:01:58,850 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 [2023-12-09 15:01:58,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:01:58,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:01:58,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:01:58,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:01:58,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:01:58,873 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:01:58,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:01:58,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:01:58,877 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:01:58,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:01:58,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:01:58,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:01:58,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:01:58,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:01:58,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:01:58,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:01:58,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:01:58,880 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:01:58,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:01:58,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:01:58,881 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:01:58,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:01:58,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:01:58,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:01:58,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:01:58,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:01:58,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:01:58,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:01:58,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:01:58,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:01:58,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:01:59,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:01:59,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:01:59,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:01:59,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:01:59,074 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:01:59,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-12-09 15:02:00,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:02:00,507 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:02:00,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-12-09 15:02:00,523 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27e934fb/2e49fce78cbc41cea99040678f1beb42/FLAG94a1493be [2023-12-09 15:02:00,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27e934fb/2e49fce78cbc41cea99040678f1beb42 [2023-12-09 15:02:00,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:02:00,536 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:02:00,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:02:00,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:02:00,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:02:00,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:00,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7605dc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00, skipping insertion in model container [2023-12-09 15:02:00,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:00,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:02:00,722 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2023-12-09 15:02:00,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:02:00,879 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:02:00,888 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2023-12-09 15:02:00,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:02:00,955 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:02:00,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00 WrapperNode [2023-12-09 15:02:00,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:02:00,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:02:00,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:02:00,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:02:00,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:00,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,007 INFO L138 Inliner]: procedures = 166, calls = 38, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 125 [2023-12-09 15:02:01,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:02:01,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:02:01,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:02:01,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:02:01,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:02:01,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:02:01,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:02:01,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:02:01,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (1/1) ... [2023-12-09 15:02:01,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:02:01,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:02:01,070 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) [2023-12-09 15:02:01,081 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 [2023-12-09 15:02:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:02:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-12-09 15:02:01,111 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-12-09 15:02:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:02:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:02:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:02:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:02:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:02:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:02:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:02:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:02:01,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:02:01,113 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:02:01,252 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:02:01,254 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:02:01,466 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:02:01,487 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:02:01,487 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-09 15:02:01,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:02:01 BoogieIcfgContainer [2023-12-09 15:02:01,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:02:01,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:02:01,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:02:01,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:02:01,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:02:00" (1/3) ... [2023-12-09 15:02:01,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca8d881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:02:01, skipping insertion in model container [2023-12-09 15:02:01,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:02:00" (2/3) ... [2023-12-09 15:02:01,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca8d881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:02:01, skipping insertion in model container [2023-12-09 15:02:01,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:02:01" (3/3) ... [2023-12-09 15:02:01,500 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-12-09 15:02:01,511 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:02:01,511 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-09 15:02:01,511 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:02:01,581 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 15:02:01,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 142 transitions, 288 flow [2023-12-09 15:02:01,680 INFO L124 PetriNetUnfolderBase]: 10/141 cut-off events. [2023-12-09 15:02:01,680 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:02:01,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 141 events. 10/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 254 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-12-09 15:02:01,693 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 142 transitions, 288 flow [2023-12-09 15:02:01,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 141 transitions, 285 flow [2023-12-09 15:02:01,710 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:02:01,717 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;@5152490f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:02:01,717 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 15:02:01,742 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:02:01,742 INFO L124 PetriNetUnfolderBase]: 3/96 cut-off events. [2023-12-09 15:02:01,742 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:02:01,742 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:01,743 INFO L233 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, 1, 1] [2023-12-09 15:02:01,743 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:01,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:01,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1797392130, now seen corresponding path program 1 times [2023-12-09 15:02:01,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:01,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743511666] [2023-12-09 15:02:01,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:01,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:01,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:01,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743511666] [2023-12-09 15:02:01,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743511666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:01,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:01,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-09 15:02:01,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087191218] [2023-12-09 15:02:01,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:01,976 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-09 15:02:01,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:02,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-09 15:02:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-09 15:02:02,007 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 142 [2023-12-09 15:02:02,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 141 transitions, 285 flow. Second operand has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 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) [2023-12-09 15:02:02,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:02,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 142 [2023-12-09 15:02:02,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:02,084 INFO L124 PetriNetUnfolderBase]: 17/247 cut-off events. [2023-12-09 15:02:02,084 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:02:02,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 247 events. 17/247 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 743 event pairs, 6 based on Foata normal form. 18/251 useless extension candidates. Maximal degree in co-relation 230. Up to 21 conditions per place. [2023-12-09 15:02:02,091 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 6 selfloop transitions, 0 changer transitions 0/131 dead transitions. [2023-12-09 15:02:02,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 131 transitions, 277 flow [2023-12-09 15:02:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-09 15:02:02,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-12-09 15:02:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 268 transitions. [2023-12-09 15:02:02,106 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9436619718309859 [2023-12-09 15:02:02,107 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 268 transitions. [2023-12-09 15:02:02,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 268 transitions. [2023-12-09 15:02:02,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:02,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 268 transitions. [2023-12-09 15:02:02,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 134.0) internal successors, (268), 2 states have internal predecessors, (268), 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) [2023-12-09 15:02:02,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2023-12-09 15:02:02,116 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2023-12-09 15:02:02,119 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, -4 predicate places. [2023-12-09 15:02:02,119 INFO L500 AbstractCegarLoop]: Abstraction has has 131 places, 131 transitions, 277 flow [2023-12-09 15:02:02,119 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 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) [2023-12-09 15:02:02,119 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:02,119 INFO L233 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, 1, 1, 1, 1] [2023-12-09 15:02:02,119 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:02:02,120 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:02,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash -22141920, now seen corresponding path program 1 times [2023-12-09 15:02:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:02,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186868135] [2023-12-09 15:02:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:02,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186868135] [2023-12-09 15:02:02,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186868135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:02,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:02,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:02:02,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96880448] [2023-12-09 15:02:02,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:02,340 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:02:02,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:02:02,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:02:02,343 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 142 [2023-12-09 15:02:02,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 131 transitions, 277 flow. Second operand has 7 states, 7 states have (on average 90.14285714285714) internal successors, (631), 7 states have internal predecessors, (631), 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) [2023-12-09 15:02:02,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:02,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 142 [2023-12-09 15:02:02,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:02,752 INFO L124 PetriNetUnfolderBase]: 310/1287 cut-off events. [2023-12-09 15:02:02,752 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2023-12-09 15:02:02,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2022 conditions, 1287 events. 310/1287 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8920 event pairs, 98 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1968. Up to 355 conditions per place. [2023-12-09 15:02:02,762 INFO L140 encePairwiseOnDemand]: 125/142 looper letters, 94 selfloop transitions, 27 changer transitions 0/205 dead transitions. [2023-12-09 15:02:02,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 205 transitions, 709 flow [2023-12-09 15:02:02,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:02:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:02:02,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1167 transitions. [2023-12-09 15:02:02,766 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6848591549295775 [2023-12-09 15:02:02,766 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1167 transitions. [2023-12-09 15:02:02,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1167 transitions. [2023-12-09 15:02:02,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:02,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1167 transitions. [2023-12-09 15:02:02,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.25) internal successors, (1167), 12 states have internal predecessors, (1167), 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) [2023-12-09 15:02:02,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 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) [2023-12-09 15:02:02,776 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 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) [2023-12-09 15:02:02,776 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 7 predicate places. [2023-12-09 15:02:02,777 INFO L500 AbstractCegarLoop]: Abstraction has has 142 places, 205 transitions, 709 flow [2023-12-09 15:02:02,777 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.14285714285714) internal successors, (631), 7 states have internal predecessors, (631), 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) [2023-12-09 15:02:02,777 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:02,777 INFO L233 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, 1, 1, 1, 1] [2023-12-09 15:02:02,777 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:02:02,778 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:02,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1569414623, now seen corresponding path program 1 times [2023-12-09 15:02:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:02,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837250659] [2023-12-09 15:02:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:02,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:03,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837250659] [2023-12-09 15:02:03,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837250659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:03,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:03,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-09 15:02:03,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378909642] [2023-12-09 15:02:03,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:03,286 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:02:03,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:03,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:02:03,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:02:03,289 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 142 [2023-12-09 15:02:03,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 205 transitions, 709 flow. Second operand has 15 states, 15 states have (on average 73.33333333333333) internal successors, (1100), 15 states have internal predecessors, (1100), 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) [2023-12-09 15:02:03,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:03,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 142 [2023-12-09 15:02:03,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:04,345 INFO L124 PetriNetUnfolderBase]: 928/3081 cut-off events. [2023-12-09 15:02:04,346 INFO L125 PetriNetUnfolderBase]: For 903/940 co-relation queries the response was YES. [2023-12-09 15:02:04,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6312 conditions, 3081 events. 928/3081 cut-off events. For 903/940 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 26032 event pairs, 111 based on Foata normal form. 7/2918 useless extension candidates. Maximal degree in co-relation 6232. Up to 799 conditions per place. [2023-12-09 15:02:04,365 INFO L140 encePairwiseOnDemand]: 117/142 looper letters, 302 selfloop transitions, 86 changer transitions 0/462 dead transitions. [2023-12-09 15:02:04,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 462 transitions, 2499 flow [2023-12-09 15:02:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-09 15:02:04,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-12-09 15:02:04,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2320 transitions. [2023-12-09 15:02:04,370 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5633802816901409 [2023-12-09 15:02:04,370 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2320 transitions. [2023-12-09 15:02:04,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2320 transitions. [2023-12-09 15:02:04,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:04,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2320 transitions. [2023-12-09 15:02:04,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 80.0) internal successors, (2320), 29 states have internal predecessors, (2320), 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) [2023-12-09 15:02:04,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 142.0) internal successors, (4260), 30 states have internal predecessors, (4260), 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) [2023-12-09 15:02:04,383 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 142.0) internal successors, (4260), 30 states have internal predecessors, (4260), 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) [2023-12-09 15:02:04,383 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 35 predicate places. [2023-12-09 15:02:04,383 INFO L500 AbstractCegarLoop]: Abstraction has has 170 places, 462 transitions, 2499 flow [2023-12-09 15:02:04,384 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.33333333333333) internal successors, (1100), 15 states have internal predecessors, (1100), 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) [2023-12-09 15:02:04,384 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:04,384 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:04,384 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:02:04,384 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:04,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:04,385 INFO L85 PathProgramCache]: Analyzing trace with hash 730096684, now seen corresponding path program 1 times [2023-12-09 15:02:04,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:04,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452751544] [2023-12-09 15:02:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:04,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:04,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:04,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452751544] [2023-12-09 15:02:04,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452751544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:04,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:04,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-09 15:02:04,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908541182] [2023-12-09 15:02:04,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:04,764 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:02:04,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:04,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:02:04,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:02:04,767 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 142 [2023-12-09 15:02:04,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 462 transitions, 2499 flow. Second operand has 15 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2023-12-09 15:02:04,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:04,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 142 [2023-12-09 15:02:04,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:07,753 INFO L124 PetriNetUnfolderBase]: 2874/7304 cut-off events. [2023-12-09 15:02:07,753 INFO L125 PetriNetUnfolderBase]: For 5151/5416 co-relation queries the response was YES. [2023-12-09 15:02:07,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19827 conditions, 7304 events. 2874/7304 cut-off events. For 5151/5416 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 59305 event pairs, 206 based on Foata normal form. 24/6910 useless extension candidates. Maximal degree in co-relation 19732. Up to 2149 conditions per place. [2023-12-09 15:02:07,834 INFO L140 encePairwiseOnDemand]: 111/142 looper letters, 776 selfloop transitions, 504 changer transitions 0/1385 dead transitions. [2023-12-09 15:02:07,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1385 transitions, 10027 flow [2023-12-09 15:02:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-12-09 15:02:07,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2023-12-09 15:02:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 6116 transitions. [2023-12-09 15:02:07,845 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5521849042975804 [2023-12-09 15:02:07,846 INFO L72 ComplementDD]: Start complementDD. Operand 78 states and 6116 transitions. [2023-12-09 15:02:07,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 6116 transitions. [2023-12-09 15:02:07,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:07,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 78 states and 6116 transitions. [2023-12-09 15:02:07,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 79 states, 78 states have (on average 78.41025641025641) internal successors, (6116), 78 states have internal predecessors, (6116), 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) [2023-12-09 15:02:07,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 79 states, 79 states have (on average 142.0) internal successors, (11218), 79 states have internal predecessors, (11218), 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) [2023-12-09 15:02:07,873 INFO L81 ComplementDD]: Finished complementDD. Result has 79 states, 79 states have (on average 142.0) internal successors, (11218), 79 states have internal predecessors, (11218), 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) [2023-12-09 15:02:07,874 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 112 predicate places. [2023-12-09 15:02:07,874 INFO L500 AbstractCegarLoop]: Abstraction has has 247 places, 1385 transitions, 10027 flow [2023-12-09 15:02:07,875 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2023-12-09 15:02:07,875 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:07,875 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:07,875 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:02:07,875 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:07,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:07,875 INFO L85 PathProgramCache]: Analyzing trace with hash 530370957, now seen corresponding path program 1 times [2023-12-09 15:02:07,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:07,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223733121] [2023-12-09 15:02:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:07,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:08,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:08,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:08,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223733121] [2023-12-09 15:02:08,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223733121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:08,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:08,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:02:08,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680950819] [2023-12-09 15:02:08,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:08,604 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:02:08,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:08,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:02:08,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:02:08,606 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 142 [2023-12-09 15:02:08,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 1385 transitions, 10027 flow. Second operand has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:02:08,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:08,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 142 [2023-12-09 15:02:08,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:11,395 INFO L124 PetriNetUnfolderBase]: 3764/9204 cut-off events. [2023-12-09 15:02:11,395 INFO L125 PetriNetUnfolderBase]: For 11461/12132 co-relation queries the response was YES. [2023-12-09 15:02:11,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30979 conditions, 9204 events. 3764/9204 cut-off events. For 11461/12132 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 76233 event pairs, 219 based on Foata normal form. 96/8795 useless extension candidates. Maximal degree in co-relation 30858. Up to 2554 conditions per place. [2023-12-09 15:02:11,447 INFO L140 encePairwiseOnDemand]: 111/142 looper letters, 1184 selfloop transitions, 458 changer transitions 0/1883 dead transitions. [2023-12-09 15:02:11,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 1883 transitions, 16929 flow [2023-12-09 15:02:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-09 15:02:11,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2023-12-09 15:02:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 3863 transitions. [2023-12-09 15:02:11,451 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5440845070422535 [2023-12-09 15:02:11,451 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 3863 transitions. [2023-12-09 15:02:11,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 3863 transitions. [2023-12-09 15:02:11,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:11,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 3863 transitions. [2023-12-09 15:02:11,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 77.26) internal successors, (3863), 50 states have internal predecessors, (3863), 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) [2023-12-09 15:02:11,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 142.0) internal successors, (7242), 51 states have internal predecessors, (7242), 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) [2023-12-09 15:02:11,464 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 142.0) internal successors, (7242), 51 states have internal predecessors, (7242), 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) [2023-12-09 15:02:11,465 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 161 predicate places. [2023-12-09 15:02:11,465 INFO L500 AbstractCegarLoop]: Abstraction has has 296 places, 1883 transitions, 16929 flow [2023-12-09 15:02:11,465 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:02:11,465 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:11,465 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:11,465 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:02:11,466 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:11,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:11,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1084998412, now seen corresponding path program 2 times [2023-12-09 15:02:11,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:11,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700507573] [2023-12-09 15:02:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:11,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:11,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:11,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700507573] [2023-12-09 15:02:11,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700507573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:11,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:11,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-09 15:02:11,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078188526] [2023-12-09 15:02:11,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:11,874 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:02:11,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:11,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:02:11,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:02:11,876 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 142 [2023-12-09 15:02:11,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 1883 transitions, 16929 flow. Second operand has 15 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2023-12-09 15:02:11,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:11,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 142 [2023-12-09 15:02:11,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:17,377 INFO L124 PetriNetUnfolderBase]: 8433/20713 cut-off events. [2023-12-09 15:02:17,378 INFO L125 PetriNetUnfolderBase]: For 34240/36591 co-relation queries the response was YES. [2023-12-09 15:02:17,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84637 conditions, 20713 events. 8433/20713 cut-off events. For 34240/36591 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 199049 event pairs, 524 based on Foata normal form. 129/19718 useless extension candidates. Maximal degree in co-relation 84501. Up to 6962 conditions per place. [2023-12-09 15:02:17,489 INFO L140 encePairwiseOnDemand]: 109/142 looper letters, 3086 selfloop transitions, 1149 changer transitions 0/4344 dead transitions. [2023-12-09 15:02:17,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 4344 transitions, 47775 flow [2023-12-09 15:02:17,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-12-09 15:02:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2023-12-09 15:02:17,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 6328 transitions. [2023-12-09 15:02:17,499 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5713253882267967 [2023-12-09 15:02:17,499 INFO L72 ComplementDD]: Start complementDD. Operand 78 states and 6328 transitions. [2023-12-09 15:02:17,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 6328 transitions. [2023-12-09 15:02:17,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:17,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 78 states and 6328 transitions. [2023-12-09 15:02:17,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 79 states, 78 states have (on average 81.12820512820512) internal successors, (6328), 78 states have internal predecessors, (6328), 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) [2023-12-09 15:02:17,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 79 states, 79 states have (on average 142.0) internal successors, (11218), 79 states have internal predecessors, (11218), 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) [2023-12-09 15:02:17,535 INFO L81 ComplementDD]: Finished complementDD. Result has 79 states, 79 states have (on average 142.0) internal successors, (11218), 79 states have internal predecessors, (11218), 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) [2023-12-09 15:02:17,537 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 238 predicate places. [2023-12-09 15:02:17,537 INFO L500 AbstractCegarLoop]: Abstraction has has 373 places, 4344 transitions, 47775 flow [2023-12-09 15:02:17,537 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2023-12-09 15:02:17,537 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:17,538 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:17,538 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:02:17,538 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:17,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:17,538 INFO L85 PathProgramCache]: Analyzing trace with hash -791085875, now seen corresponding path program 2 times [2023-12-09 15:02:17,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:17,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358124463] [2023-12-09 15:02:17,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:17,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:18,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:18,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358124463] [2023-12-09 15:02:18,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358124463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:18,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:02:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033247462] [2023-12-09 15:02:18,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:18,122 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:02:18,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:18,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:02:18,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:02:18,124 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 142 [2023-12-09 15:02:18,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 4344 transitions, 47775 flow. Second operand has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:02:18,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:18,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 142 [2023-12-09 15:02:18,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:25,062 INFO L124 PetriNetUnfolderBase]: 8070/19783 cut-off events. [2023-12-09 15:02:25,062 INFO L125 PetriNetUnfolderBase]: For 49236/52808 co-relation queries the response was YES. [2023-12-09 15:02:25,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92492 conditions, 19783 events. 8070/19783 cut-off events. For 49236/52808 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 183049 event pairs, 532 based on Foata normal form. 231/18931 useless extension candidates. Maximal degree in co-relation 92330. Up to 6919 conditions per place. [2023-12-09 15:02:25,173 INFO L140 encePairwiseOnDemand]: 110/142 looper letters, 2677 selfloop transitions, 805 changer transitions 0/4139 dead transitions. [2023-12-09 15:02:25,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 4139 transitions, 52283 flow [2023-12-09 15:02:25,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-09 15:02:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2023-12-09 15:02:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 3861 transitions. [2023-12-09 15:02:25,177 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5438028169014084 [2023-12-09 15:02:25,177 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 3861 transitions. [2023-12-09 15:02:25,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 3861 transitions. [2023-12-09 15:02:25,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:25,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 3861 transitions. [2023-12-09 15:02:25,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 77.22) internal successors, (3861), 50 states have internal predecessors, (3861), 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) [2023-12-09 15:02:25,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 142.0) internal successors, (7242), 51 states have internal predecessors, (7242), 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) [2023-12-09 15:02:25,188 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 142.0) internal successors, (7242), 51 states have internal predecessors, (7242), 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) [2023-12-09 15:02:25,188 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 287 predicate places. [2023-12-09 15:02:25,189 INFO L500 AbstractCegarLoop]: Abstraction has has 422 places, 4139 transitions, 52283 flow [2023-12-09 15:02:25,189 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:02:25,189 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:25,189 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:25,189 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:02:25,189 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:25,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:25,190 INFO L85 PathProgramCache]: Analyzing trace with hash -273226953, now seen corresponding path program 3 times [2023-12-09 15:02:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:25,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736645330] [2023-12-09 15:02:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:25,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:25,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:25,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736645330] [2023-12-09 15:02:25,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736645330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:25,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:25,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:02:25,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922062295] [2023-12-09 15:02:25,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:25,545 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:02:25,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:25,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:02:25,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:02:25,547 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 142 [2023-12-09 15:02:25,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 4139 transitions, 52283 flow. Second operand has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:02:25,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:25,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 142 [2023-12-09 15:02:25,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:33,353 INFO L124 PetriNetUnfolderBase]: 8229/20484 cut-off events. [2023-12-09 15:02:33,353 INFO L125 PetriNetUnfolderBase]: For 66993/70377 co-relation queries the response was YES. [2023-12-09 15:02:33,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106284 conditions, 20484 events. 8229/20484 cut-off events. For 66993/70377 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 190577 event pairs, 448 based on Foata normal form. 89/19491 useless extension candidates. Maximal degree in co-relation 106096. Up to 7758 conditions per place. [2023-12-09 15:02:33,476 INFO L140 encePairwiseOnDemand]: 112/142 looper letters, 2637 selfloop transitions, 463 changer transitions 0/4520 dead transitions. [2023-12-09 15:02:33,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 4520 transitions, 61547 flow [2023-12-09 15:02:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:02:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:02:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2963 transitions. [2023-12-09 15:02:33,479 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5796165884194053 [2023-12-09 15:02:33,480 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2963 transitions. [2023-12-09 15:02:33,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2963 transitions. [2023-12-09 15:02:33,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:33,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2963 transitions. [2023-12-09 15:02:33,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 82.30555555555556) internal successors, (2963), 36 states have internal predecessors, (2963), 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) [2023-12-09 15:02:33,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 142.0) internal successors, (5254), 37 states have internal predecessors, (5254), 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) [2023-12-09 15:02:33,488 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 142.0) internal successors, (5254), 37 states have internal predecessors, (5254), 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) [2023-12-09 15:02:33,490 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 322 predicate places. [2023-12-09 15:02:33,490 INFO L500 AbstractCegarLoop]: Abstraction has has 457 places, 4520 transitions, 61547 flow [2023-12-09 15:02:33,491 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:02:33,491 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:33,491 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:33,491 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:02:33,491 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:33,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:33,491 INFO L85 PathProgramCache]: Analyzing trace with hash -382784236, now seen corresponding path program 3 times [2023-12-09 15:02:33,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:33,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268818574] [2023-12-09 15:02:33,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:33,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:33,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:33,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268818574] [2023-12-09 15:02:33,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268818574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:33,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:33,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-09 15:02:33,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918049649] [2023-12-09 15:02:33,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:33,745 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:02:33,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:33,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:02:33,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:02:33,746 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 142 [2023-12-09 15:02:33,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 4520 transitions, 61547 flow. Second operand has 15 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2023-12-09 15:02:33,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:33,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 142 [2023-12-09 15:02:33,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:46,017 INFO L124 PetriNetUnfolderBase]: 10366/25999 cut-off events. [2023-12-09 15:02:46,017 INFO L125 PetriNetUnfolderBase]: For 100762/105916 co-relation queries the response was YES. [2023-12-09 15:02:46,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152366 conditions, 25999 events. 10366/25999 cut-off events. For 100762/105916 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 256000 event pairs, 447 based on Foata normal form. 180/24846 useless extension candidates. Maximal degree in co-relation 152163. Up to 9521 conditions per place. [2023-12-09 15:02:46,200 INFO L140 encePairwiseOnDemand]: 110/142 looper letters, 4018 selfloop transitions, 1798 changer transitions 0/5941 dead transitions. [2023-12-09 15:02:46,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 5941 transitions, 92215 flow [2023-12-09 15:02:46,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-12-09 15:02:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2023-12-09 15:02:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 7009 transitions. [2023-12-09 15:02:46,207 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5608994878361075 [2023-12-09 15:02:46,207 INFO L72 ComplementDD]: Start complementDD. Operand 88 states and 7009 transitions. [2023-12-09 15:02:46,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 7009 transitions. [2023-12-09 15:02:46,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:46,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 88 states and 7009 transitions. [2023-12-09 15:02:46,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 89 states, 88 states have (on average 79.64772727272727) internal successors, (7009), 88 states have internal predecessors, (7009), 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) [2023-12-09 15:02:46,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 89 states, 89 states have (on average 142.0) internal successors, (12638), 89 states have internal predecessors, (12638), 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) [2023-12-09 15:02:46,229 INFO L81 ComplementDD]: Finished complementDD. Result has 89 states, 89 states have (on average 142.0) internal successors, (12638), 89 states have internal predecessors, (12638), 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) [2023-12-09 15:02:46,229 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 409 predicate places. [2023-12-09 15:02:46,230 INFO L500 AbstractCegarLoop]: Abstraction has has 544 places, 5941 transitions, 92215 flow [2023-12-09 15:02:46,230 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2023-12-09 15:02:46,230 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:46,230 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:46,230 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:02:46,230 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:46,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash -662817449, now seen corresponding path program 4 times [2023-12-09 15:02:46,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:46,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588997025] [2023-12-09 15:02:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:46,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:46,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:46,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588997025] [2023-12-09 15:02:46,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588997025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:46,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:46,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:02:46,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840778653] [2023-12-09 15:02:46,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:46,717 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:02:46,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:46,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:02:46,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:02:46,718 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 142 [2023-12-09 15:02:46,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 5941 transitions, 92215 flow. Second operand has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:02:46,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:46,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 142 [2023-12-09 15:02:46,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:02:58,935 INFO L124 PetriNetUnfolderBase]: 10251/25882 cut-off events. [2023-12-09 15:02:58,936 INFO L125 PetriNetUnfolderBase]: For 136129/142026 co-relation queries the response was YES. [2023-12-09 15:02:58,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166071 conditions, 25882 events. 10251/25882 cut-off events. For 136129/142026 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 255819 event pairs, 477 based on Foata normal form. 248/24800 useless extension candidates. Maximal degree in co-relation 165842. Up to 9509 conditions per place. [2023-12-09 15:02:59,124 INFO L140 encePairwiseOnDemand]: 110/142 looper letters, 3591 selfloop transitions, 1137 changer transitions 0/6004 dead transitions. [2023-12-09 15:02:59,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 6004 transitions, 102771 flow [2023-12-09 15:02:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-09 15:02:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-12-09 15:02:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 3663 transitions. [2023-12-09 15:02:59,140 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5374119718309859 [2023-12-09 15:02:59,140 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 3663 transitions. [2023-12-09 15:02:59,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 3663 transitions. [2023-12-09 15:02:59,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:02:59,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 3663 transitions. [2023-12-09 15:02:59,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 76.3125) internal successors, (3663), 48 states have internal predecessors, (3663), 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) [2023-12-09 15:02:59,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 142.0) internal successors, (6958), 49 states have internal predecessors, (6958), 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) [2023-12-09 15:02:59,151 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 142.0) internal successors, (6958), 49 states have internal predecessors, (6958), 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) [2023-12-09 15:02:59,151 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 456 predicate places. [2023-12-09 15:02:59,151 INFO L500 AbstractCegarLoop]: Abstraction has has 591 places, 6004 transitions, 102771 flow [2023-12-09 15:02:59,152 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:02:59,152 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:02:59,152 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:02:59,152 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:02:59,152 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:02:59,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:02:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1790531327, now seen corresponding path program 5 times [2023-12-09 15:02:59,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:02:59,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960859450] [2023-12-09 15:02:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:02:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:02:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:02:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:02:59,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:02:59,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960859450] [2023-12-09 15:02:59,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960859450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:02:59,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:02:59,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:02:59,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218599051] [2023-12-09 15:02:59,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:02:59,489 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:02:59,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:02:59,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:02:59,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:02:59,491 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 142 [2023-12-09 15:02:59,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 6004 transitions, 102771 flow. Second operand has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:02:59,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:02:59,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 142 [2023-12-09 15:02:59,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:03:16,673 INFO L124 PetriNetUnfolderBase]: 11552/29615 cut-off events. [2023-12-09 15:03:16,673 INFO L125 PetriNetUnfolderBase]: For 185352/192211 co-relation queries the response was YES. [2023-12-09 15:03:16,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204158 conditions, 29615 events. 11552/29615 cut-off events. For 185352/192211 co-relation queries the response was YES. Maximal size of possible extension queue 594. Compared 301824 event pairs, 502 based on Foata normal form. 152/28298 useless extension candidates. Maximal degree in co-relation 203903. Up to 11957 conditions per place. [2023-12-09 15:03:16,916 INFO L140 encePairwiseOnDemand]: 113/142 looper letters, 3843 selfloop transitions, 737 changer transitions 0/6367 dead transitions. [2023-12-09 15:03:16,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 6367 transitions, 118125 flow [2023-12-09 15:03:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-09 15:03:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-12-09 15:03:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3743 transitions. [2023-12-09 15:03:16,920 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5730251071647275 [2023-12-09 15:03:16,920 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3743 transitions. [2023-12-09 15:03:16,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3743 transitions. [2023-12-09 15:03:16,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:03:16,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3743 transitions. [2023-12-09 15:03:16,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 81.3695652173913) internal successors, (3743), 46 states have internal predecessors, (3743), 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) [2023-12-09 15:03:16,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 142.0) internal successors, (6674), 47 states have internal predecessors, (6674), 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) [2023-12-09 15:03:16,929 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 142.0) internal successors, (6674), 47 states have internal predecessors, (6674), 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) [2023-12-09 15:03:16,930 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 497 predicate places. [2023-12-09 15:03:16,930 INFO L500 AbstractCegarLoop]: Abstraction has has 632 places, 6367 transitions, 118125 flow [2023-12-09 15:03:16,930 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:03:16,930 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:03:16,930 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:03:16,930 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:03:16,930 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:03:16,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:03:16,931 INFO L85 PathProgramCache]: Analyzing trace with hash -677720235, now seen corresponding path program 6 times [2023-12-09 15:03:16,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:03:16,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064056808] [2023-12-09 15:03:16,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:03:16,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:03:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:03:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:03:17,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:03:17,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064056808] [2023-12-09 15:03:17,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064056808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:03:17,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:03:17,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:03:17,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181241281] [2023-12-09 15:03:17,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:03:17,582 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:03:17,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:03:17,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:03:17,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:03:17,583 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 142 [2023-12-09 15:03:17,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 6367 transitions, 118125 flow. Second operand has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:03:17,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:03:17,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 142 [2023-12-09 15:03:17,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:03:45,930 INFO L124 PetriNetUnfolderBase]: 15176/38988 cut-off events. [2023-12-09 15:03:45,931 INFO L125 PetriNetUnfolderBase]: For 289071/298546 co-relation queries the response was YES. [2023-12-09 15:03:46,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289949 conditions, 38988 events. 15176/38988 cut-off events. For 289071/298546 co-relation queries the response was YES. Maximal size of possible extension queue 873. Compared 422664 event pairs, 632 based on Foata normal form. 299/37389 useless extension candidates. Maximal degree in co-relation 289668. Up to 16450 conditions per place. [2023-12-09 15:03:46,368 INFO L140 encePairwiseOnDemand]: 114/142 looper letters, 5158 selfloop transitions, 1190 changer transitions 0/8135 dead transitions. [2023-12-09 15:03:46,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 679 places, 8135 transitions, 164619 flow [2023-12-09 15:03:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-09 15:03:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-12-09 15:03:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 3940 transitions. [2023-12-09 15:03:46,373 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5780516431924883 [2023-12-09 15:03:46,373 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 3940 transitions. [2023-12-09 15:03:46,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 3940 transitions. [2023-12-09 15:03:46,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:03:46,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 3940 transitions. [2023-12-09 15:03:46,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 82.08333333333333) internal successors, (3940), 48 states have internal predecessors, (3940), 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) [2023-12-09 15:03:46,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 142.0) internal successors, (6958), 49 states have internal predecessors, (6958), 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) [2023-12-09 15:03:46,385 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 142.0) internal successors, (6958), 49 states have internal predecessors, (6958), 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) [2023-12-09 15:03:46,386 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 544 predicate places. [2023-12-09 15:03:46,387 INFO L500 AbstractCegarLoop]: Abstraction has has 679 places, 8135 transitions, 164619 flow [2023-12-09 15:03:46,387 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:03:46,387 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:03:46,387 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:03:46,387 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:03:46,388 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:03:46,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:03:46,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1163358155, now seen corresponding path program 7 times [2023-12-09 15:03:46,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:03:46,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583353866] [2023-12-09 15:03:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:03:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:03:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:03:46,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:03:46,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:03:46,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583353866] [2023-12-09 15:03:46,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583353866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:03:46,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:03:46,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:03:46,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141220139] [2023-12-09 15:03:46,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:03:46,792 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:03:46,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:03:46,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:03:46,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:03:46,794 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 142 [2023-12-09 15:03:46,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 679 places, 8135 transitions, 164619 flow. Second operand has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:03:46,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:03:46,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 142 [2023-12-09 15:03:46,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:29,959 INFO L124 PetriNetUnfolderBase]: 15874/40822 cut-off events. [2023-12-09 15:04:29,959 INFO L125 PetriNetUnfolderBase]: For 357209/368304 co-relation queries the response was YES. [2023-12-09 15:04:30,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325581 conditions, 40822 events. 15874/40822 cut-off events. For 357209/368304 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 447129 event pairs, 638 based on Foata normal form. 327/39174 useless extension candidates. Maximal degree in co-relation 325274. Up to 17297 conditions per place. [2023-12-09 15:04:30,324 INFO L140 encePairwiseOnDemand]: 114/142 looper letters, 5720 selfloop transitions, 1034 changer transitions 0/8541 dead transitions. [2023-12-09 15:04:30,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 729 places, 8541 transitions, 186601 flow [2023-12-09 15:04:30,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-09 15:04:30,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2023-12-09 15:04:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 4114 transitions. [2023-12-09 15:04:30,327 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.568075117370892 [2023-12-09 15:04:30,328 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 4114 transitions. [2023-12-09 15:04:30,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 4114 transitions. [2023-12-09 15:04:30,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:30,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 4114 transitions. [2023-12-09 15:04:30,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 80.66666666666667) internal successors, (4114), 51 states have internal predecessors, (4114), 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) [2023-12-09 15:04:30,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 142.0) internal successors, (7384), 52 states have internal predecessors, (7384), 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) [2023-12-09 15:04:30,337 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 142.0) internal successors, (7384), 52 states have internal predecessors, (7384), 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) [2023-12-09 15:04:30,337 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 594 predicate places. [2023-12-09 15:04:30,338 INFO L500 AbstractCegarLoop]: Abstraction has has 729 places, 8541 transitions, 186601 flow [2023-12-09 15:04:30,338 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:04:30,338 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:30,338 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:04:30,338 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:04:30,338 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:04:30,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:30,339 INFO L85 PathProgramCache]: Analyzing trace with hash -904562831, now seen corresponding path program 8 times [2023-12-09 15:04:30,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:30,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535009645] [2023-12-09 15:04:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:30,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:30,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:04:30,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:30,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535009645] [2023-12-09 15:04:30,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535009645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:30,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:30,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-09 15:04:30,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827198629] [2023-12-09 15:04:30,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:30,644 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:04:30,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:30,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:04:30,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:04:30,645 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 142 [2023-12-09 15:04:30,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 8541 transitions, 186601 flow. Second operand has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:04:30,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:30,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 142 [2023-12-09 15:04:30,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:05:21,319 INFO L124 PetriNetUnfolderBase]: 16117/41508 cut-off events. [2023-12-09 15:05:21,320 INFO L125 PetriNetUnfolderBase]: For 425478/437991 co-relation queries the response was YES. [2023-12-09 15:05:21,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353639 conditions, 41508 events. 16117/41508 cut-off events. For 425478/437991 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 456621 event pairs, 651 based on Foata normal form. 301/39813 useless extension candidates. Maximal degree in co-relation 353306. Up to 17615 conditions per place. [2023-12-09 15:05:21,869 INFO L140 encePairwiseOnDemand]: 114/142 looper letters, 6034 selfloop transitions, 890 changer transitions 0/8711 dead transitions. [2023-12-09 15:05:21,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 771 places, 8711 transitions, 204359 flow [2023-12-09 15:05:21,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-09 15:05:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-12-09 15:05:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 3476 transitions. [2023-12-09 15:05:21,885 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5692761218473632 [2023-12-09 15:05:21,885 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 3476 transitions. [2023-12-09 15:05:21,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 3476 transitions. [2023-12-09 15:05:21,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:05:21,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 3476 transitions. [2023-12-09 15:05:21,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 80.83720930232558) internal successors, (3476), 43 states have internal predecessors, (3476), 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) [2023-12-09 15:05:21,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 142.0) internal successors, (6248), 44 states have internal predecessors, (6248), 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) [2023-12-09 15:05:21,893 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 142.0) internal successors, (6248), 44 states have internal predecessors, (6248), 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) [2023-12-09 15:05:21,893 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 636 predicate places. [2023-12-09 15:05:21,893 INFO L500 AbstractCegarLoop]: Abstraction has has 771 places, 8711 transitions, 204359 flow [2023-12-09 15:05:21,893 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.15) internal successors, (1463), 20 states have internal predecessors, (1463), 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) [2023-12-09 15:05:21,894 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:05:21,894 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:05:21,894 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:05:21,894 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:05:21,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:05:21,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2056702607, now seen corresponding path program 9 times [2023-12-09 15:05:21,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:05:21,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079553200] [2023-12-09 15:05:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:05:21,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:05:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:05:22,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:05:22,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:05:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079553200] [2023-12-09 15:05:22,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079553200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:05:22,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:05:22,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-09 15:05:22,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639700267] [2023-12-09 15:05:22,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:05:22,292 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:05:22,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:05:22,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:05:22,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:05:22,293 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 142 [2023-12-09 15:05:22,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 771 places, 8711 transitions, 204359 flow. Second operand has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:05:22,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:05:22,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 142 [2023-12-09 15:05:22,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:06:02,481 INFO L124 PetriNetUnfolderBase]: 14402/36755 cut-off events. [2023-12-09 15:06:02,482 INFO L125 PetriNetUnfolderBase]: For 456725/471048 co-relation queries the response was YES. [2023-12-09 15:06:02,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336970 conditions, 36755 events. 14402/36755 cut-off events. For 456725/471048 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 393462 event pairs, 593 based on Foata normal form. 354/35332 useless extension candidates. Maximal degree in co-relation 336611. Up to 15856 conditions per place. [2023-12-09 15:06:02,832 INFO L140 encePairwiseOnDemand]: 113/142 looper letters, 5365 selfloop transitions, 788 changer transitions 0/8058 dead transitions. [2023-12-09 15:06:02,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 810 places, 8058 transitions, 200347 flow [2023-12-09 15:06:02,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-09 15:06:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2023-12-09 15:06:02,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 3576 transitions. [2023-12-09 15:06:02,835 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.535810608330836 [2023-12-09 15:06:02,835 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 3576 transitions. [2023-12-09 15:06:02,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 3576 transitions. [2023-12-09 15:06:02,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:06:02,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 3576 transitions. [2023-12-09 15:06:02,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 76.08510638297872) internal successors, (3576), 47 states have internal predecessors, (3576), 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) [2023-12-09 15:06:02,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 142.0) internal successors, (6816), 48 states have internal predecessors, (6816), 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) [2023-12-09 15:06:02,868 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 142.0) internal successors, (6816), 48 states have internal predecessors, (6816), 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) [2023-12-09 15:06:02,869 INFO L308 CegarLoopForPetriNet]: 135 programPoint places, 675 predicate places. [2023-12-09 15:06:02,869 INFO L500 AbstractCegarLoop]: Abstraction has has 810 places, 8058 transitions, 200347 flow [2023-12-09 15:06:02,869 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 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) [2023-12-09 15:06:02,869 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:06:02,869 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:06:02,869 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-09 15:06:02,869 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-09 15:06:02,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:06:02,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1638933868, now seen corresponding path program 4 times [2023-12-09 15:06:02,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:06:02,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788900443] [2023-12-09 15:06:02,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:06:02,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:06:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:06:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:06:03,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:06:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788900443] [2023-12-09 15:06:03,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788900443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:06:03,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:06:03,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-09 15:06:03,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419775731] [2023-12-09 15:06:03,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:06:03,234 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:06:03,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:06:03,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:06:03,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:06:03,238 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 142 [2023-12-09 15:06:03,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 810 places, 8058 transitions, 200347 flow. Second operand has 15 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2023-12-09 15:06:03,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:06:03,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 142 [2023-12-09 15:06:03,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:06:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-09 15:06:23,672 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 15:06:23,673 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-09 15:06:23,673 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 70/142 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 142233 conditions, 14775 events (5148/14774 cut-off events. For 217585/226252 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 170046 event pairs, 210 based on Foata normal form. 148/15026 useless extension candidates. Maximal degree in co-relation 141859. Up to 5235 conditions per place.). [2023-12-09 15:06:23,673 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 [2023-12-09 15:06:23,689 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-09 15:06:23,690 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-12-09 15:06:23,690 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-12-09 15:06:23,690 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-12-09 15:06:23,691 INFO L457 BasicCegarLoop]: Path program histogram: [9, 4, 1, 1, 1] [2023-12-09 15:06:23,694 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:06:23,694 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:06:23,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:06:23 BasicIcfg [2023-12-09 15:06:23,697 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:06:23,697 INFO L158 Benchmark]: Toolchain (without parser) took 263160.72ms. Allocated memory was 352.3MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 298.0MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-09 15:06:23,697 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:06:23,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.49ms. Allocated memory is still 352.3MB. Free memory was 297.2MB in the beginning and 276.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 15:06:23,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.94ms. Allocated memory is still 352.3MB. Free memory was 276.9MB in the beginning and 274.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:06:23,698 INFO L158 Benchmark]: Boogie Preprocessor took 28.62ms. Allocated memory is still 352.3MB. Free memory was 274.4MB in the beginning and 272.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:06:23,698 INFO L158 Benchmark]: RCFGBuilder took 451.69ms. Allocated memory is still 352.3MB. Free memory was 272.8MB in the beginning and 303.5MB in the end (delta: -30.7MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2023-12-09 15:06:23,698 INFO L158 Benchmark]: TraceAbstraction took 262206.53ms. Allocated memory was 352.3MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 303.0MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-09 15:06:23,699 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 418.49ms. Allocated memory is still 352.3MB. Free memory was 297.2MB in the beginning and 276.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.94ms. Allocated memory is still 352.3MB. Free memory was 276.9MB in the beginning and 274.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.62ms. Allocated memory is still 352.3MB. Free memory was 274.4MB in the beginning and 272.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 451.69ms. Allocated memory is still 352.3MB. Free memory was 272.8MB in the beginning and 303.5MB in the end (delta: -30.7MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * TraceAbstraction took 262206.53ms. Allocated memory was 352.3MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 303.0MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 70/142 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 142233 conditions, 14775 events (5148/14774 cut-off events. For 217585/226252 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 170046 event pairs, 210 based on Foata normal form. 148/15026 useless extension candidates. Maximal degree in co-relation 141859. Up to 5235 conditions per place.). - TimeoutResultAtElement [Line: 748]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 70/142 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 142233 conditions, 14775 events (5148/14774 cut-off events. For 217585/226252 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 170046 event pairs, 210 based on Foata normal form. 148/15026 useless extension candidates. Maximal degree in co-relation 141859. Up to 5235 conditions per place.). - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 70/142 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 142233 conditions, 14775 events (5148/14774 cut-off events. For 217585/226252 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 170046 event pairs, 210 based on Foata normal form. 148/15026 useless extension candidates. Maximal degree in co-relation 141859. Up to 5235 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 192 locations, 5 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: 262.1s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 255.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10890 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10890 mSDsluCounter, 16454 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14599 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22008 IncrementalHoareTripleChecker+Invalid, 22206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 1855 mSDtfsCounter, 22008 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 973 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 925 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19262 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204359occurred in iteration=14, InterpolantAutomatonStates: 706, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 1070 NumberOfCodeBlocks, 1070 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1054 ConstructedInterpolants, 0 QuantifiedInterpolants, 8135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown