/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:12:52,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:12:52,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:12:52,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:12:52,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:12:52,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:12:52,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:12:52,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:12:52,462 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:12:52,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:12:52,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:12:52,466 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:12:52,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:12:52,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:12:52,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:12:52,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:12:52,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:12:52,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:12:52,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:12:52,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:12:52,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:12:52,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:12:52,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:12:52,469 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:12:52,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:12:52,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:12:52,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:12:52,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:12:52,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:12:52,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:12:52,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:12:52,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:12:52,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:12:52,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:12:52,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:12:52,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:12:52,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:12:52,684 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:12:52,685 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:12:52,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-12-09 15:12:53,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:12:53,912 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:12:53,912 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-12-09 15:12:53,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9da49f1a/f2fdd6ce7da442aab91b043220209b35/FLAGe64043718 [2023-12-09 15:12:53,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9da49f1a/f2fdd6ce7da442aab91b043220209b35 [2023-12-09 15:12:53,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:12:53,939 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:12:53,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:12:53,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:12:53,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:12:53,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:12:53" (1/1) ... [2023-12-09 15:12:53,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361ce5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:53, skipping insertion in model container [2023-12-09 15:12:53,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:12:53" (1/1) ... [2023-12-09 15:12:53,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:12:54,166 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] [2023-12-09 15:12:54,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:12:54,180 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:12:54,235 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] [2023-12-09 15:12:54,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:12:54,246 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:12:54,247 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:12:54,252 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:12:54,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54 WrapperNode [2023-12-09 15:12:54,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:12:54,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:12:54,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:12:54,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:12:54,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,375 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2379 [2023-12-09 15:12:54,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:12:54,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:12:54,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:12:54,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:12:54,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:12:54,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:12:54,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:12:54,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:12:54,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (1/1) ... [2023-12-09 15:12:54,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:12:54,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:12:54,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 15:12:54,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 15:12:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:12:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:12:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:12:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:12:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:12:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:12:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:12:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:12:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:12:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:12:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:12:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:12:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:12:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:12:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:12:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:12:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:12:54,570 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:12:54,726 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:12:54,727 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:12:56,254 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:12:57,828 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:12:57,828 INFO L309 CfgBuilder]: Removed 18 assume(true) statements. [2023-12-09 15:12:57,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:12:57 BoogieIcfgContainer [2023-12-09 15:12:57,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:12:57,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:12:57,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:12:57,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:12:57,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:12:53" (1/3) ... [2023-12-09 15:12:57,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753924a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:12:57, skipping insertion in model container [2023-12-09 15:12:57,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:12:54" (2/3) ... [2023-12-09 15:12:57,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753924a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:12:57, skipping insertion in model container [2023-12-09 15:12:57,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:12:57" (3/3) ... [2023-12-09 15:12:57,837 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2023-12-09 15:12:57,851 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:12:57,852 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:12:57,852 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:12:58,194 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:12:58,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 733 places, 802 transitions, 1625 flow [2023-12-09 15:12:58,477 INFO L124 PetriNetUnfolderBase]: 79/799 cut-off events. [2023-12-09 15:12:58,477 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:12:58,494 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. [2023-12-09 15:12:58,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 733 places, 802 transitions, 1625 flow [2023-12-09 15:12:58,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 719 places, 788 transitions, 1594 flow [2023-12-09 15:12:58,513 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:12:58,531 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;@6a83fa5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:12:58,532 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:12:58,702 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:12:58,702 INFO L124 PetriNetUnfolderBase]: 79/787 cut-off events. [2023-12-09 15:12:58,702 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:12:58,702 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:12:58,703 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:12:58,704 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)] === [2023-12-09 15:12:58,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:12:58,707 INFO L85 PathProgramCache]: Analyzing trace with hash 611526366, now seen corresponding path program 1 times [2023-12-09 15:12:58,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:12:58,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097713733] [2023-12-09 15:12:58,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:12:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:12:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:12:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:12:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:12:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097713733] [2023-12-09 15:12:59,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097713733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:12:59,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:12:59,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:12:59,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277958854] [2023-12-09 15:12:59,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:12:59,479 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:12:59,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:12:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:12:59,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:12:59,512 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 802 [2023-12-09 15:12:59,520 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) [2023-12-09 15:12:59,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:12:59,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 802 [2023-12-09 15:12:59,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:00,731 INFO L124 PetriNetUnfolderBase]: 675/2231 cut-off events. [2023-12-09 15:13:00,731 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-12-09 15:13:00,737 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. [2023-12-09 15:13:00,747 INFO L140 encePairwiseOnDemand]: 717/802 looper letters, 207 selfloop transitions, 36 changer transitions 25/769 dead transitions. [2023-12-09 15:13:00,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 723 places, 769 transitions, 2042 flow [2023-12-09 15:13:00,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:13:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:13:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2993 transitions. [2023-12-09 15:13:00,760 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7463840399002494 [2023-12-09 15:13:00,761 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2993 transitions. [2023-12-09 15:13:00,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2993 transitions. [2023-12-09 15:13:00,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:00,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2993 transitions. [2023-12-09 15:13:00,773 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) [2023-12-09 15:13:00,781 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) [2023-12-09 15:13:00,783 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) [2023-12-09 15:13:00,787 INFO L308 CegarLoopForPetriNet]: 719 programPoint places, 4 predicate places. [2023-12-09 15:13:00,787 INFO L500 AbstractCegarLoop]: Abstraction has has 723 places, 769 transitions, 2042 flow [2023-12-09 15:13:00,788 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) [2023-12-09 15:13:00,789 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:00,789 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:00,789 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:13:00,789 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)] === [2023-12-09 15:13:00,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:00,790 INFO L85 PathProgramCache]: Analyzing trace with hash -888647317, now seen corresponding path program 1 times [2023-12-09 15:13:00,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:00,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957479453] [2023-12-09 15:13:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-09 15:13:01,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:01,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957479453] [2023-12-09 15:13:01,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957479453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:01,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:01,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:13:01,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008705534] [2023-12-09 15:13:01,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:01,097 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:13:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:13:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:13:01,101 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 802 [2023-12-09 15:13:01,104 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) [2023-12-09 15:13:01,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:01,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 802 [2023-12-09 15:13:01,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:02,106 INFO L124 PetriNetUnfolderBase]: 675/2273 cut-off events. [2023-12-09 15:13:02,107 INFO L125 PetriNetUnfolderBase]: For 611/1339 co-relation queries the response was YES. [2023-12-09 15:13:02,112 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. [2023-12-09 15:13:02,121 INFO L140 encePairwiseOnDemand]: 760/802 looper letters, 231 selfloop transitions, 36 changer transitions 25/793 dead transitions. [2023-12-09 15:13:02,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 727 places, 793 transitions, 2672 flow [2023-12-09 15:13:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:13:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:13:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2944 transitions. [2023-12-09 15:13:02,126 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7341645885286783 [2023-12-09 15:13:02,127 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2944 transitions. [2023-12-09 15:13:02,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2944 transitions. [2023-12-09 15:13:02,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:02,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2944 transitions. [2023-12-09 15:13:02,132 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) [2023-12-09 15:13:02,137 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) [2023-12-09 15:13:02,139 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) [2023-12-09 15:13:02,140 INFO L308 CegarLoopForPetriNet]: 719 programPoint places, 8 predicate places. [2023-12-09 15:13:02,140 INFO L500 AbstractCegarLoop]: Abstraction has has 727 places, 793 transitions, 2672 flow [2023-12-09 15:13:02,142 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) [2023-12-09 15:13:02,142 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:02,142 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:13:02,142 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:13:02,143 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)] === [2023-12-09 15:13:02,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1975243126, now seen corresponding path program 1 times [2023-12-09 15:13:02,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:02,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451936822] [2023-12-09 15:13:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:02,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-09 15:13:02,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:02,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451936822] [2023-12-09 15:13:02,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451936822] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:13:02,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387723152] [2023-12-09 15:13:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:02,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:13:02,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:02,602 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) [2023-12-09 15:13:02,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:13:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:03,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:13:03,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:13:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-09 15:13:03,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:13:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-09 15:13:03,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387723152] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:13:03,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:13:03,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-12-09 15:13:03,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783129814] [2023-12-09 15:13:03,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:13:03,598 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-09 15:13:03,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:03,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-09 15:13:03,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:13:03,607 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 802 [2023-12-09 15:13:03,616 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) [2023-12-09 15:13:03,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:03,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 802 [2023-12-09 15:13:03,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:05,556 INFO L124 PetriNetUnfolderBase]: 675/2393 cut-off events. [2023-12-09 15:13:05,556 INFO L125 PetriNetUnfolderBase]: For 1715/3171 co-relation queries the response was YES. [2023-12-09 15:13:05,563 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. [2023-12-09 15:13:05,577 INFO L140 encePairwiseOnDemand]: 682/802 looper letters, 207 selfloop transitions, 156 changer transitions 25/877 dead transitions. [2023-12-09 15:13:05,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 877 transitions, 3806 flow [2023-12-09 15:13:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:13:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:13:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 10927 transitions. [2023-12-09 15:13:05,593 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6812344139650873 [2023-12-09 15:13:05,594 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 10927 transitions. [2023-12-09 15:13:05,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 10927 transitions. [2023-12-09 15:13:05,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:05,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 10927 transitions. [2023-12-09 15:13:05,614 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) [2023-12-09 15:13:05,634 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) [2023-12-09 15:13:05,638 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) [2023-12-09 15:13:05,639 INFO L308 CegarLoopForPetriNet]: 719 programPoint places, 27 predicate places. [2023-12-09 15:13:05,639 INFO L500 AbstractCegarLoop]: Abstraction has has 746 places, 877 transitions, 3806 flow [2023-12-09 15:13:05,641 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) [2023-12-09 15:13:05,641 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:05,642 INFO L233 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] [2023-12-09 15:13:05,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-09 15:13:05,852 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 [2023-12-09 15:13:05,853 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)] === [2023-12-09 15:13:05,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:05,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1739224896, now seen corresponding path program 2 times [2023-12-09 15:13:05,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:05,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234956761] [2023-12-09 15:13:05,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:05,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-09 15:13:06,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:06,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234956761] [2023-12-09 15:13:06,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234956761] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:13:06,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302637845] [2023-12-09 15:13:06,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:13:06,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:13:06,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:06,650 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) [2023-12-09 15:13:06,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:13:07,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-09 15:13:07,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:13:07,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-09 15:13:07,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:13:14,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:13:14,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:13:14,079 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-09 15:13:14,080 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 [2023-12-09 15:13:14,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:13:14,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:13:14,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:13:14,308 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-09 15:13:14,308 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 [2023-12-09 15:13:14,454 INFO L349 Elim1Store]: treesize reduction 3, result has 91.9 percent of original size [2023-12-09 15:13:14,454 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 [2023-12-09 15:13:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-09 15:13:14,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:13:14,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302637845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:14,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:13:14,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [11] total 35 [2023-12-09 15:13:14,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623649478] [2023-12-09 15:13:14,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:14,760 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-09 15:13:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:14,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-09 15:13:14,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2023-12-09 15:13:14,771 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 802 [2023-12-09 15:13:14,778 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) [2023-12-09 15:13:14,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:14,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 802 [2023-12-09 15:13:14,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:20,082 INFO L124 PetriNetUnfolderBase]: 1842/4101 cut-off events. [2023-12-09 15:13:20,082 INFO L125 PetriNetUnfolderBase]: For 8823/13458 co-relation queries the response was YES. [2023-12-09 15:13:20,090 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. [2023-12-09 15:13:20,116 INFO L140 encePairwiseOnDemand]: 684/802 looper letters, 322 selfloop transitions, 88 changer transitions 39/952 dead transitions. [2023-12-09 15:13:20,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 952 transitions, 5160 flow [2023-12-09 15:13:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-09 15:13:20,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2023-12-09 15:13:20,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 19367 transitions. [2023-12-09 15:13:20,142 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5137952989865762 [2023-12-09 15:13:20,142 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 19367 transitions. [2023-12-09 15:13:20,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 19367 transitions. [2023-12-09 15:13:20,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:20,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 19367 transitions. [2023-12-09 15:13:20,174 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) [2023-12-09 15:13:20,217 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) [2023-12-09 15:13:20,229 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) [2023-12-09 15:13:20,231 INFO L308 CegarLoopForPetriNet]: 719 programPoint places, 73 predicate places. [2023-12-09 15:13:20,231 INFO L500 AbstractCegarLoop]: Abstraction has has 792 places, 952 transitions, 5160 flow [2023-12-09 15:13:20,234 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) [2023-12-09 15:13:20,234 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:20,235 INFO L233 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] [2023-12-09 15:13:20,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:13:20,443 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 [2023-12-09 15:13:20,445 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)] === [2023-12-09 15:13:20,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:20,446 INFO L85 PathProgramCache]: Analyzing trace with hash -430891272, now seen corresponding path program 3 times [2023-12-09 15:13:20,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:20,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639801635] [2023-12-09 15:13:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:20,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-09 15:13:21,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:21,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639801635] [2023-12-09 15:13:21,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639801635] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:13:21,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414237613] [2023-12-09 15:13:21,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:13:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:13:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:21,092 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) [2023-12-09 15:13:21,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:13:21,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-09 15:13:21,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:13:21,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-09 15:13:21,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:13:23,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:13:23,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:13:23,363 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-09 15:13:23,363 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 [2023-12-09 15:13:23,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:13:23,587 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 [2023-12-09 15:13:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-09 15:13:23,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:13:23,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414237613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:23,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:13:23,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [11] total 28 [2023-12-09 15:13:23,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839416113] [2023-12-09 15:13:23,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:23,666 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:13:23,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:23,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:13:23,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-12-09 15:13:23,671 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 802 [2023-12-09 15:13:23,675 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) [2023-12-09 15:13:23,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:23,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 802 [2023-12-09 15:13:23,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:27,804 INFO L124 PetriNetUnfolderBase]: 2145/4828 cut-off events. [2023-12-09 15:13:27,804 INFO L125 PetriNetUnfolderBase]: For 13255/22853 co-relation queries the response was YES. [2023-12-09 15:13:27,818 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. [2023-12-09 15:13:27,856 INFO L140 encePairwiseOnDemand]: 687/802 looper letters, 423 selfloop transitions, 91 changer transitions 57/1075 dead transitions. [2023-12-09 15:13:27,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 1075 transitions, 7238 flow [2023-12-09 15:13:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-09 15:13:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-12-09 15:13:27,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 15443 transitions. [2023-12-09 15:13:27,973 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5204219181775291 [2023-12-09 15:13:27,973 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 15443 transitions. [2023-12-09 15:13:27,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 15443 transitions. [2023-12-09 15:13:27,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:27,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 15443 transitions. [2023-12-09 15:13:27,991 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) [2023-12-09 15:13:28,008 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) [2023-12-09 15:13:28,013 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) [2023-12-09 15:13:28,015 INFO L308 CegarLoopForPetriNet]: 719 programPoint places, 109 predicate places. [2023-12-09 15:13:28,015 INFO L500 AbstractCegarLoop]: Abstraction has has 828 places, 1075 transitions, 7238 flow [2023-12-09 15:13:28,016 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) [2023-12-09 15:13:28,016 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:28,017 INFO L233 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] [2023-12-09 15:13:28,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:13:28,227 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 [2023-12-09 15:13:28,228 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)] === [2023-12-09 15:13:28,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:28,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1407962810, now seen corresponding path program 4 times [2023-12-09 15:13:28,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:28,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844437004] [2023-12-09 15:13:28,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:28,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:28,779 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-09 15:13:28,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:28,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844437004] [2023-12-09 15:13:28,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844437004] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:13:28,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529422446] [2023-12-09 15:13:28,780 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:13:28,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:13:28,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:28,781 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) [2023-12-09 15:13:28,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:13:29,368 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:13:29,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:13:29,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-09 15:13:29,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:13:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-09 15:13:29,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:13:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-09 15:13:29,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529422446] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:13:29,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:13:29,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-12-09 15:13:29,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976367722] [2023-12-09 15:13:29,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:13:29,609 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-09 15:13:29,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:29,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-09 15:13:29,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-12-09 15:13:29,614 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 802 [2023-12-09 15:13:29,618 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) [2023-12-09 15:13:29,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:29,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 802 [2023-12-09 15:13:29,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:33,284 INFO L124 PetriNetUnfolderBase]: 2145/4972 cut-off events. [2023-12-09 15:13:33,284 INFO L125 PetriNetUnfolderBase]: For 21496/34106 co-relation queries the response was YES. [2023-12-09 15:13:33,294 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. [2023-12-09 15:13:33,332 INFO L140 encePairwiseOnDemand]: 682/802 looper letters, 341 selfloop transitions, 210 changer transitions 57/1165 dead transitions. [2023-12-09 15:13:33,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 856 places, 1165 transitions, 9082 flow [2023-12-09 15:13:33,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-09 15:13:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-12-09 15:13:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 15754 transitions. [2023-12-09 15:13:33,341 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6773583283171382 [2023-12-09 15:13:33,341 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 15754 transitions. [2023-12-09 15:13:33,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 15754 transitions. [2023-12-09 15:13:33,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:33,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 15754 transitions. [2023-12-09 15:13:33,358 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) [2023-12-09 15:13:33,373 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) [2023-12-09 15:13:33,375 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) [2023-12-09 15:13:33,377 INFO L308 CegarLoopForPetriNet]: 719 programPoint places, 137 predicate places. [2023-12-09 15:13:33,378 INFO L500 AbstractCegarLoop]: Abstraction has has 856 places, 1165 transitions, 9082 flow [2023-12-09 15:13:33,379 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) [2023-12-09 15:13:33,380 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:33,380 INFO L233 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] [2023-12-09 15:13:33,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:13:33,583 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 [2023-12-09 15:13:33,583 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)] === [2023-12-09 15:13:33,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:33,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1788258363, now seen corresponding path program 5 times [2023-12-09 15:13:33,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:33,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017527964] [2023-12-09 15:13:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:33,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2023-12-09 15:13:34,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:34,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017527964] [2023-12-09 15:13:34,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017527964] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:13:34,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951825468] [2023-12-09 15:13:34,585 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 15:13:34,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:13:34,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:34,589 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) [2023-12-09 15:13:34,595 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... [2023-12-09 15:17:22,651 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:17:22,651 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 [2023-12-09 15:17:23,667 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 [2023-12-09 15:17:23,860 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-12-09 15:17:23,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-12-09 15:17:23,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:17:23,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:17:23,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-12-09 15:17:23,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799692713] [2023-12-09 15:17:23,881 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-09 15:17:23,882 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:17:23,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:17:23,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:17:23,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:17:23,886 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 802 [2023-12-09 15:17:23,889 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) [2023-12-09 15:17:23,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:17:23,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 802 [2023-12-09 15:17:23,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:17:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-09 15:17:23,891 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:17:23,891 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:17:23,891 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.). [2023-12-09 15:17:23,892 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:17:23,892 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:17:23,892 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:17:23,893 INFO L457 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-12-09 15:17:23,895 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:17:23,895 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:17:23,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:17:23 BasicIcfg [2023-12-09 15:17:23,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:17:23,898 INFO L158 Benchmark]: Toolchain (without parser) took 269958.98ms. Allocated memory was 228.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 176.5MB in the beginning and 690.8MB in the end (delta: -514.3MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-09 15:17:23,898 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 228.6MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:17:23,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.60ms. Allocated memory is still 228.6MB. Free memory was 176.1MB in the beginning and 150.4MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-09 15:17:23,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.12ms. Allocated memory was 228.6MB in the beginning and 283.1MB in the end (delta: 54.5MB). Free memory was 150.4MB in the beginning and 244.0MB in the end (delta: -93.5MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2023-12-09 15:17:23,899 INFO L158 Benchmark]: Boogie Preprocessor took 88.04ms. Allocated memory is still 283.1MB. Free memory was 244.0MB in the beginning and 233.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-09 15:17:23,899 INFO L158 Benchmark]: RCFGBuilder took 3364.83ms. Allocated memory was 283.1MB in the beginning and 421.5MB in the end (delta: 138.4MB). Free memory was 233.0MB in the beginning and 143.3MB in the end (delta: 89.7MB). Peak memory consumption was 260.6MB. Max. memory is 8.0GB. [2023-12-09 15:17:23,899 INFO L158 Benchmark]: TraceAbstraction took 266066.56ms. Allocated memory was 421.5MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 142.2MB in the beginning and 690.8MB in the end (delta: -548.6MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-09 15:17:23,900 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 228.6MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 310.60ms. Allocated memory is still 228.6MB. Free memory was 176.1MB in the beginning and 150.4MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 123.12ms. Allocated memory was 228.6MB in the beginning and 283.1MB in the end (delta: 54.5MB). Free memory was 150.4MB in the beginning and 244.0MB in the end (delta: -93.5MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 88.04ms. Allocated memory is still 283.1MB. Free memory was 244.0MB in the beginning and 233.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 3364.83ms. Allocated memory was 283.1MB in the beginning and 421.5MB in the end (delta: 138.4MB). Free memory was 233.0MB in the beginning and 143.3MB in the end (delta: 89.7MB). Peak memory consumption was 260.6MB. Max. memory is 8.0GB. * TraceAbstraction took 266066.56ms. Allocated memory was 421.5MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 142.2MB in the beginning and 690.8MB in the end (delta: -548.6MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * 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: 265.7s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4550 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4550 mSDsluCounter, 8449 SdHoareTripleChecker+Invalid, 4.4s 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, 3.4s 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, 0.8s SatisfiabilityAnalysisTime, 13.8s 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