/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 21:01:35,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 21:01:35,139 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-29 21:01:35,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 21:01:35,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 21:01:35,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 21:01:35,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 21:01:35,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 21:01:35,177 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 21:01:35,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 21:01:35,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 21:01:35,181 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 21:01:35,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 21:01:35,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 21:01:35,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 21:01:35,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 21:01:35,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 21:01:35,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 21:01:35,183 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 21:01:35,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 21:01:35,184 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 21:01:35,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 21:01:35,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 21:01:35,185 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 21:01:35,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 21:01:35,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:01:35,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 21:01:35,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 21:01:35,186 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 21:01:35,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 21:01:35,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 21:01:35,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 21:01:35,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 21:01:35,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 21:01:35,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 21:01:35,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 21:01:35,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 21:01:35,436 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 21:01:35,436 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 21:01:35,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-11-29 21:01:36,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 21:01:36,811 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 21:01:36,812 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-11-29 21:01:36,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c45cf9664/ce5e0f68a50649a5b99cf3b8f80ea2a6/FLAG9d58c8fb3 [2023-11-29 21:01:36,839 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c45cf9664/ce5e0f68a50649a5b99cf3b8f80ea2a6 [2023-11-29 21:01:36,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 21:01:36,841 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 21:01:36,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 21:01:36,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 21:01:36,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 21:01:36,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:01:36" (1/1) ... [2023-11-29 21:01:36,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e4ed9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:36, skipping insertion in model container [2023-11-29 21:01:36,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:01:36" (1/1) ... [2023-11-29 21:01:36,897 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 21:01:37,232 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18913,18926] [2023-11-29 21:01:37,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:01:37,254 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 21:01:37,332 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18913,18926] [2023-11-29 21:01:37,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:01:37,341 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 21:01:37,341 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 21:01:37,347 INFO L206 MainTranslator]: Completed translation [2023-11-29 21:01:37,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37 WrapperNode [2023-11-29 21:01:37,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 21:01:37,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 21:01:37,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 21:01:37,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 21:01:37,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,478 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2379 [2023-11-29 21:01:37,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 21:01:37,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 21:01:37,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 21:01:37,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 21:01:37,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 21:01:37,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 21:01:37,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 21:01:37,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 21:01:37,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (1/1) ... [2023-11-29 21:01:37,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:01:37,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:01:37,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-29 21:01:37,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-29 21:01:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 21:01:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 21:01:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 21:01:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 21:01:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 21:01:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 21:01:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 21:01:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 21:01:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 21:01:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 21:01:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 21:01:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 21:01:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 21:01:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 21:01:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 21:01:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 21:01:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 21:01:37,736 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 21:01:37,964 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 21:01:37,966 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 21:01:39,678 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 21:01:41,732 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 21:01:41,733 INFO L309 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-29 21:01:41,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:01:41 BoogieIcfgContainer [2023-11-29 21:01:41,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 21:01:41,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 21:01:41,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 21:01:41,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 21:01:41,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:01:36" (1/3) ... [2023-11-29 21:01:41,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513651ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:01:41, skipping insertion in model container [2023-11-29 21:01:41,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:01:37" (2/3) ... [2023-11-29 21:01:41,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513651ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:01:41, skipping insertion in model container [2023-11-29 21:01:41,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:01:41" (3/3) ... [2023-11-29 21:01:41,741 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2023-11-29 21:01:41,757 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 21:01:41,758 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 21:01:41,758 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 21:01:42,146 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 21:01:42,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 733 places, 802 transitions, 1625 flow [2023-11-29 21:01:42,547 INFO L124 PetriNetUnfolderBase]: 79/799 cut-off events. [2023-11-29 21:01:42,547 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 21:01:42,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 799 events. 79/799 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 922 event pairs, 0 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 715. Up to 7 conditions per place. [2023-11-29 21:01:42,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 733 places, 802 transitions, 1625 flow [2023-11-29 21:01:42,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 719 places, 788 transitions, 1594 flow [2023-11-29 21:01:42,581 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 21:01:42,587 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;@21c6778a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 21:01:42,587 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 21:01:42,757 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 21:01:42,757 INFO L124 PetriNetUnfolderBase]: 79/787 cut-off events. [2023-11-29 21:01:42,757 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 21:01:42,757 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:01:42,758 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:01:42,759 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:01:42,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:01:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash 611526366, now seen corresponding path program 1 times [2023-11-29 21:01:42,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:01:42,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991148216] [2023-11-29 21:01:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:01:42,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:01:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:01:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:01:43,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:01:43,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991148216] [2023-11-29 21:01:43,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991148216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:01:43,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:01:43,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 21:01:43,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689502143] [2023-11-29 21:01:43,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:01:43,778 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 21:01:43,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:01:43,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 21:01:43,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 21:01:43,811 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 802 [2023-11-29 21:01:43,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 719 places, 788 transitions, 1594 flow. Second operand has 5 states, 5 states have (on average 568.4) internal successors, (2842), 5 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:43,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:01:43,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 802 [2023-11-29 21:01:43,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:01:45,284 INFO L124 PetriNetUnfolderBase]: 675/2231 cut-off events. [2023-11-29 21:01:45,284 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-11-29 21:01:45,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3271 conditions, 2231 events. 675/2231 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 10466 event pairs, 135 based on Foata normal form. 157/2061 useless extension candidates. Maximal degree in co-relation 2152. Up to 865 conditions per place. [2023-11-29 21:01:45,306 INFO L140 encePairwiseOnDemand]: 717/802 looper letters, 207 selfloop transitions, 36 changer transitions 25/769 dead transitions. [2023-11-29 21:01:45,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 723 places, 769 transitions, 2042 flow [2023-11-29 21:01:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 21:01:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 21:01:45,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2993 transitions. [2023-11-29 21:01:45,328 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7463840399002494 [2023-11-29 21:01:45,329 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2993 transitions. [2023-11-29 21:01:45,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2993 transitions. [2023-11-29 21:01:45,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:01:45,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2993 transitions. [2023-11-29 21:01:45,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 598.6) internal successors, (2993), 5 states have internal predecessors, (2993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:45,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 802.0) internal successors, (4812), 6 states have internal predecessors, (4812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:45,360 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 802.0) internal successors, (4812), 6 states have internal predecessors, (4812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:45,365 INFO L307 CegarLoopForPetriNet]: 719 programPoint places, 4 predicate places. [2023-11-29 21:01:45,365 INFO L500 AbstractCegarLoop]: Abstraction has has 723 places, 769 transitions, 2042 flow [2023-11-29 21:01:45,367 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 568.4) internal successors, (2842), 5 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:45,368 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:01:45,368 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:01:45,368 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 21:01:45,369 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:01:45,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:01:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash -888647317, now seen corresponding path program 1 times [2023-11-29 21:01:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:01:45,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68098809] [2023-11-29 21:01:45,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:01:45,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:01:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:01:45,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 21:01:45,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:01:45,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68098809] [2023-11-29 21:01:45,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68098809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:01:45,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:01:45,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 21:01:45,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058851314] [2023-11-29 21:01:45,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:01:45,851 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 21:01:45,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:01:45,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 21:01:45,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 21:01:45,857 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 802 [2023-11-29 21:01:45,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 723 places, 769 transitions, 2042 flow. Second operand has 5 states, 5 states have (on average 572.0) internal successors, (2860), 5 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:45,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:01:45,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 802 [2023-11-29 21:01:45,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:01:47,231 INFO L124 PetriNetUnfolderBase]: 675/2273 cut-off events. [2023-11-29 21:01:47,232 INFO L125 PetriNetUnfolderBase]: For 611/1339 co-relation queries the response was YES. [2023-11-29 21:01:47,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4334 conditions, 2273 events. 675/2273 cut-off events. For 611/1339 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10471 event pairs, 135 based on Foata normal form. 0/1946 useless extension candidates. Maximal degree in co-relation 2799. Up to 889 conditions per place. [2023-11-29 21:01:47,252 INFO L140 encePairwiseOnDemand]: 760/802 looper letters, 231 selfloop transitions, 36 changer transitions 25/793 dead transitions. [2023-11-29 21:01:47,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 727 places, 793 transitions, 2672 flow [2023-11-29 21:01:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 21:01:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 21:01:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2944 transitions. [2023-11-29 21:01:47,260 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7341645885286783 [2023-11-29 21:01:47,260 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2944 transitions. [2023-11-29 21:01:47,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2944 transitions. [2023-11-29 21:01:47,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:01:47,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2944 transitions. [2023-11-29 21:01:47,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 588.8) internal successors, (2944), 5 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:47,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 802.0) internal successors, (4812), 6 states have internal predecessors, (4812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:47,276 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 802.0) internal successors, (4812), 6 states have internal predecessors, (4812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:47,277 INFO L307 CegarLoopForPetriNet]: 719 programPoint places, 8 predicate places. [2023-11-29 21:01:47,277 INFO L500 AbstractCegarLoop]: Abstraction has has 727 places, 793 transitions, 2672 flow [2023-11-29 21:01:47,279 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 572.0) internal successors, (2860), 5 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:47,279 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:01:47,280 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:01:47,280 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 21:01:47,281 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:01:47,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:01:47,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1975243126, now seen corresponding path program 1 times [2023-11-29 21:01:47,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:01:47,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166988399] [2023-11-29 21:01:47,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:01:47,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:01:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:01:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 21:01:47,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:01:47,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166988399] [2023-11-29 21:01:47,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166988399] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:01:47,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517165278] [2023-11-29 21:01:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:01:47,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:01:47,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:01:47,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:01:47,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 21:01:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:01:48,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 21:01:48,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:01:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 21:01:48,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 21:01:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 21:01:48,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517165278] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 21:01:48,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 21:01:48,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-11-29 21:01:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21225647] [2023-11-29 21:01:48,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 21:01:48,842 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 21:01:48,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:01:48,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 21:01:48,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 21:01:48,854 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 802 [2023-11-29 21:01:48,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 727 places, 793 transitions, 2672 flow. Second operand has 17 states, 17 states have (on average 546.0) internal successors, (9282), 17 states have internal predecessors, (9282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:48,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:01:48,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 802 [2023-11-29 21:01:48,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:01:50,950 INFO L124 PetriNetUnfolderBase]: 675/2393 cut-off events. [2023-11-29 21:01:50,950 INFO L125 PetriNetUnfolderBase]: For 1715/3171 co-relation queries the response was YES. [2023-11-29 21:01:50,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5667 conditions, 2393 events. 675/2393 cut-off events. For 1715/3171 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10356 event pairs, 135 based on Foata normal form. 0/2066 useless extension candidates. Maximal degree in co-relation 3446. Up to 919 conditions per place. [2023-11-29 21:01:50,974 INFO L140 encePairwiseOnDemand]: 682/802 looper letters, 207 selfloop transitions, 156 changer transitions 25/877 dead transitions. [2023-11-29 21:01:50,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 877 transitions, 3806 flow [2023-11-29 21:01:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 21:01:50,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 21:01:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 10927 transitions. [2023-11-29 21:01:50,995 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6812344139650873 [2023-11-29 21:01:50,995 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 10927 transitions. [2023-11-29 21:01:50,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 10927 transitions. [2023-11-29 21:01:51,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:01:51,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 10927 transitions. [2023-11-29 21:01:51,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 546.35) internal successors, (10927), 20 states have internal predecessors, (10927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:51,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 802.0) internal successors, (16842), 21 states have internal predecessors, (16842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:51,052 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 802.0) internal successors, (16842), 21 states have internal predecessors, (16842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:51,052 INFO L307 CegarLoopForPetriNet]: 719 programPoint places, 27 predicate places. [2023-11-29 21:01:51,053 INFO L500 AbstractCegarLoop]: Abstraction has has 746 places, 877 transitions, 3806 flow [2023-11-29 21:01:51,055 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 546.0) internal successors, (9282), 17 states have internal predecessors, (9282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:01:51,055 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:01:51,056 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:01:51,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 21:01:51,265 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:01:51,266 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:01:51,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:01:51,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1739224896, now seen corresponding path program 2 times [2023-11-29 21:01:51,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:01:51,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642280340] [2023-11-29 21:01:51,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:01:51,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:01:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:01:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-29 21:01:52,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:01:52,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642280340] [2023-11-29 21:01:52,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642280340] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:01:52,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97735843] [2023-11-29 21:01:52,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 21:01:52,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:01:52,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:01:52,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:01:52,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 21:01:52,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 21:01:52,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 21:01:52,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 21:01:52,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:01:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 21:01:59,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 21:01:59,774 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-29 21:01:59,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 24 [2023-11-29 21:02:00,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 21:02:00,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 21:02:00,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 21:02:00,028 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-29 21:02:00,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2023-11-29 21:02:00,191 INFO L349 Elim1Store]: treesize reduction 3, result has 91.9 percent of original size [2023-11-29 21:02:00,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 53 [2023-11-29 21:02:00,530 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 21:02:00,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 21:02:00,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97735843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:02:00,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 21:02:00,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [11] total 35 [2023-11-29 21:02:00,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950242322] [2023-11-29 21:02:00,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:02:00,532 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 21:02:00,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:02:00,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 21:02:00,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 21:02:00,544 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 802 [2023-11-29 21:02:00,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 877 transitions, 3806 flow. Second operand has 26 states, 26 states have (on average 414.34615384615387) internal successors, (10773), 26 states have internal predecessors, (10773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:00,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:02:00,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 802 [2023-11-29 21:02:00,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:02:06,236 INFO L124 PetriNetUnfolderBase]: 1842/4101 cut-off events. [2023-11-29 21:02:06,236 INFO L125 PetriNetUnfolderBase]: For 8823/13458 co-relation queries the response was YES. [2023-11-29 21:02:06,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13606 conditions, 4101 events. 1842/4101 cut-off events. For 8823/13458 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 20791 event pairs, 333 based on Foata normal form. 0/3420 useless extension candidates. Maximal degree in co-relation 8864. Up to 2146 conditions per place. [2023-11-29 21:02:06,282 INFO L140 encePairwiseOnDemand]: 684/802 looper letters, 322 selfloop transitions, 88 changer transitions 39/952 dead transitions. [2023-11-29 21:02:06,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 952 transitions, 5160 flow [2023-11-29 21:02:06,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 21:02:06,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2023-11-29 21:02:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 19367 transitions. [2023-11-29 21:02:06,321 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5137952989865762 [2023-11-29 21:02:06,321 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 19367 transitions. [2023-11-29 21:02:06,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 19367 transitions. [2023-11-29 21:02:06,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:02:06,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 19367 transitions. [2023-11-29 21:02:06,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 412.06382978723406) internal successors, (19367), 47 states have internal predecessors, (19367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:06,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 802.0) internal successors, (38496), 48 states have internal predecessors, (38496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:06,430 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 802.0) internal successors, (38496), 48 states have internal predecessors, (38496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:06,432 INFO L307 CegarLoopForPetriNet]: 719 programPoint places, 73 predicate places. [2023-11-29 21:02:06,432 INFO L500 AbstractCegarLoop]: Abstraction has has 792 places, 952 transitions, 5160 flow [2023-11-29 21:02:06,435 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 414.34615384615387) internal successors, (10773), 26 states have internal predecessors, (10773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:06,435 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:02:06,436 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:02:06,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 21:02:06,647 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-29 21:02:06,647 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:02:06,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:02:06,648 INFO L85 PathProgramCache]: Analyzing trace with hash -430891272, now seen corresponding path program 3 times [2023-11-29 21:02:06,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:02:06,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750156214] [2023-11-29 21:02:06,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:02:06,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:02:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:02:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-29 21:02:07,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:02:07,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750156214] [2023-11-29 21:02:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750156214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:02:07,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197384550] [2023-11-29 21:02:07,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 21:02:07,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:02:07,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:02:07,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:02:07,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 21:02:08,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-29 21:02:08,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 21:02:08,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 21:02:08,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:02:10,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 21:02:10,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 21:02:10,281 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-29 21:02:10,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 24 [2023-11-29 21:02:10,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 21:02:10,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 52 [2023-11-29 21:02:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 21:02:10,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 21:02:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197384550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:02:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 21:02:10,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [11] total 28 [2023-11-29 21:02:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629156709] [2023-11-29 21:02:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:02:10,495 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 21:02:10,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:02:10,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 21:02:10,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-11-29 21:02:10,502 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 802 [2023-11-29 21:02:10,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 792 places, 952 transitions, 5160 flow. Second operand has 19 states, 19 states have (on average 421.4736842105263) internal successors, (8008), 19 states have internal predecessors, (8008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:10,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:02:10,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 802 [2023-11-29 21:02:10,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:02:14,868 INFO L124 PetriNetUnfolderBase]: 2145/4828 cut-off events. [2023-11-29 21:02:14,868 INFO L125 PetriNetUnfolderBase]: For 13255/22853 co-relation queries the response was YES. [2023-11-29 21:02:14,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18892 conditions, 4828 events. 2145/4828 cut-off events. For 13255/22853 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 27494 event pairs, 341 based on Foata normal form. 5/4111 useless extension candidates. Maximal degree in co-relation 12229. Up to 2511 conditions per place. [2023-11-29 21:02:14,928 INFO L140 encePairwiseOnDemand]: 687/802 looper letters, 423 selfloop transitions, 91 changer transitions 57/1075 dead transitions. [2023-11-29 21:02:14,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 1075 transitions, 7238 flow [2023-11-29 21:02:14,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 21:02:14,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-11-29 21:02:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 15443 transitions. [2023-11-29 21:02:14,951 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5204219181775291 [2023-11-29 21:02:14,952 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 15443 transitions. [2023-11-29 21:02:14,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 15443 transitions. [2023-11-29 21:02:14,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:02:14,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 15443 transitions. [2023-11-29 21:02:14,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 417.3783783783784) internal successors, (15443), 37 states have internal predecessors, (15443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:14,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 802.0) internal successors, (30476), 38 states have internal predecessors, (30476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:15,005 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 802.0) internal successors, (30476), 38 states have internal predecessors, (30476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:15,007 INFO L307 CegarLoopForPetriNet]: 719 programPoint places, 109 predicate places. [2023-11-29 21:02:15,007 INFO L500 AbstractCegarLoop]: Abstraction has has 828 places, 1075 transitions, 7238 flow [2023-11-29 21:02:15,009 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 421.4736842105263) internal successors, (8008), 19 states have internal predecessors, (8008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:15,009 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:02:15,010 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:02:15,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 21:02:15,218 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:02:15,219 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:02:15,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:02:15,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1407962810, now seen corresponding path program 4 times [2023-11-29 21:02:15,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:02:15,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542582407] [2023-11-29 21:02:15,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:02:15,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:02:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:02:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-29 21:02:15,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:02:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542582407] [2023-11-29 21:02:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542582407] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:02:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143947801] [2023-11-29 21:02:15,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 21:02:15,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:02:15,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:02:15,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:02:15,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 21:02:16,773 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 21:02:16,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 21:02:16,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 21:02:16,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 21:02:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-29 21:02:16,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 21:02:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-11-29 21:02:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143947801] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 21:02:17,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 21:02:17,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-29 21:02:17,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733502502] [2023-11-29 21:02:17,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 21:02:17,066 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 21:02:17,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:02:17,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 21:02:17,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-29 21:02:17,071 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 802 [2023-11-29 21:02:17,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 828 places, 1075 transitions, 7238 flow. Second operand has 22 states, 22 states have (on average 537.9545454545455) internal successors, (11835), 22 states have internal predecessors, (11835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:17,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:02:17,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 802 [2023-11-29 21:02:17,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:02:20,563 INFO L124 PetriNetUnfolderBase]: 2145/4972 cut-off events. [2023-11-29 21:02:20,563 INFO L125 PetriNetUnfolderBase]: For 21496/34106 co-relation queries the response was YES. [2023-11-29 21:02:20,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22081 conditions, 4972 events. 2145/4972 cut-off events. For 21496/34106 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 27458 event pairs, 341 based on Foata normal form. 2/4252 useless extension candidates. Maximal degree in co-relation 13976. Up to 2559 conditions per place. [2023-11-29 21:02:20,624 INFO L140 encePairwiseOnDemand]: 682/802 looper letters, 341 selfloop transitions, 210 changer transitions 57/1165 dead transitions. [2023-11-29 21:02:20,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 856 places, 1165 transitions, 9082 flow [2023-11-29 21:02:20,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 21:02:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-29 21:02:20,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 15754 transitions. [2023-11-29 21:02:20,639 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6773583283171382 [2023-11-29 21:02:20,640 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 15754 transitions. [2023-11-29 21:02:20,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 15754 transitions. [2023-11-29 21:02:20,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:02:20,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 15754 transitions. [2023-11-29 21:02:20,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 543.2413793103449) internal successors, (15754), 29 states have internal predecessors, (15754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:20,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 802.0) internal successors, (24060), 30 states have internal predecessors, (24060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:20,696 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 802.0) internal successors, (24060), 30 states have internal predecessors, (24060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:20,699 INFO L307 CegarLoopForPetriNet]: 719 programPoint places, 137 predicate places. [2023-11-29 21:02:20,699 INFO L500 AbstractCegarLoop]: Abstraction has has 856 places, 1165 transitions, 9082 flow [2023-11-29 21:02:20,701 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 537.9545454545455) internal successors, (11835), 22 states have internal predecessors, (11835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:02:20,702 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:02:20,702 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:02:20,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 21:02:20,910 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:02:20,911 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:02:20,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:02:20,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1788258363, now seen corresponding path program 5 times [2023-11-29 21:02:20,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:02:20,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967392731] [2023-11-29 21:02:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:02:20,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:02:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:02:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2023-11-29 21:02:22,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:02:22,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967392731] [2023-11-29 21:02:22,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967392731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 21:02:22,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695937763] [2023-11-29 21:02:22,072 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 21:02:22,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 21:02:22,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:02:22,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 21:02:22,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-11-29 21:16:01,015 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-29 21:16:01,015 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-29 21:16:02,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-29 21:16:02,221 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-11-29 21:16:02,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 21:16:02,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 21:16:02,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 21:16:02,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664598575] [2023-11-29 21:16:02,266 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 21:16:02,266 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 21:16:02,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:16:02,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 21:16:02,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 21:16:02,271 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 802 [2023-11-29 21:16:02,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-11-29 21:16:02,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 856 places, 1165 transitions, 9082 flow. Second operand has 15 states, 15 states have (on average 541.7333333333333) internal successors, (8126), 15 states have internal predecessors, (8126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:16:02,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:16:02,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 802 [2023-11-29 21:16:02,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:16:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 21:16:02,287 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-29 21:16:02,287 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 21:16:02,287 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 527/802 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 12 conditions, 2 events (0/1 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). [2023-11-29 21:16:02,288 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 21:16:02,289 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 21:16:02,289 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-29 21:16:02,289 INFO L457 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-11-29 21:16:02,292 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 21:16:02,292 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 21:16:02,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:16:02 BasicIcfg [2023-11-29 21:16:02,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 21:16:02,295 INFO L158 Benchmark]: Toolchain (without parser) took 865453.12ms. Allocated memory was 518.0MB in the beginning and 3.1GB in the end (delta: 2.6GB). Free memory was 468.6MB in the beginning and 2.0GB in the end (delta: -1.6GB). Peak memory consumption was 997.1MB. Max. memory is 16.0GB. [2023-11-29 21:16:02,295 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 341.8MB. Free memory was 294.1MB in the beginning and 293.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 21:16:02,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.41ms. Allocated memory is still 518.0MB. Free memory was 468.6MB in the beginning and 442.8MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-29 21:16:02,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.19ms. Allocated memory is still 518.0MB. Free memory was 442.8MB in the beginning and 430.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-29 21:16:02,296 INFO L158 Benchmark]: Boogie Preprocessor took 196.31ms. Allocated memory is still 518.0MB. Free memory was 430.9MB in the beginning and 473.7MB in the end (delta: -42.9MB). Peak memory consumption was 12.0MB. Max. memory is 16.0GB. [2023-11-29 21:16:02,296 INFO L158 Benchmark]: RCFGBuilder took 4058.16ms. Allocated memory was 518.0MB in the beginning and 826.3MB in the end (delta: 308.3MB). Free memory was 473.7MB in the beginning and 546.1MB in the end (delta: -72.3MB). Peak memory consumption was 243.2MB. Max. memory is 16.0GB. [2023-11-29 21:16:02,296 INFO L158 Benchmark]: TraceAbstraction took 860557.97ms. Allocated memory was 826.3MB in the beginning and 3.1GB in the end (delta: 2.3GB). Free memory was 545.1MB in the beginning and 2.0GB in the end (delta: -1.5GB). Peak memory consumption was 765.0MB. Max. memory is 16.0GB. [2023-11-29 21:16:02,297 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 341.8MB. Free memory was 294.1MB in the beginning and 293.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 505.41ms. Allocated memory is still 518.0MB. Free memory was 468.6MB in the beginning and 442.8MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 130.19ms. Allocated memory is still 518.0MB. Free memory was 442.8MB in the beginning and 430.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 196.31ms. Allocated memory is still 518.0MB. Free memory was 430.9MB in the beginning and 473.7MB in the end (delta: -42.9MB). Peak memory consumption was 12.0MB. Max. memory is 16.0GB. * RCFGBuilder took 4058.16ms. Allocated memory was 518.0MB in the beginning and 826.3MB in the end (delta: 308.3MB). Free memory was 473.7MB in the beginning and 546.1MB in the end (delta: -72.3MB). Peak memory consumption was 243.2MB. Max. memory is 16.0GB. * TraceAbstraction took 860557.97ms. Allocated memory was 826.3MB in the beginning and 3.1GB in the end (delta: 2.3GB). Free memory was 545.1MB in the beginning and 2.0GB in the end (delta: -1.5GB). Peak memory consumption was 765.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 341]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 527/802 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 12 conditions, 2 events (0/1 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 333]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 527/802 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 12 conditions, 2 events (0/1 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 334]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 527/802 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 12 conditions, 2 events (0/1 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 335]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (15states, 527/802 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 12 conditions, 2 events (0/1 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 868 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 860.1s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4550 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4550 mSDsluCounter, 8449 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7516 mSDsCounter, 585 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8968 IncrementalHoareTripleChecker+Invalid, 9553 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 585 mSolverCounterUnsat, 933 mSDtfsCounter, 8968 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4466 GetRequests, 4237 SyntacticMatches, 5 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2684 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9082occurred in iteration=6, InterpolantAutomatonStates: 143, 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: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 7809 NumberOfCodeBlocks, 7147 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 9164 ConstructedInterpolants, 28 QuantifiedInterpolants, 38271 SizeOfPredicates, 67 NumberOfNonLiveVariables, 4696 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 2909/3132 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