/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 20:52:37,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 20:52:37,492 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-VariableLbe.epf [2023-08-25 20:52:37,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 20:52:37,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 20:52:37,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 20:52:37,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 20:52:37,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 20:52:37,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 20:52:37,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 20:52:37,540 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 20:52:37,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 20:52:37,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 20:52:37,541 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 20:52:37,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 20:52:37,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 20:52:37,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 20:52:37,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 20:52:37,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 20:52:37,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 20:52:37,543 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 20:52:37,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 20:52:37,548 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 20:52:37,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 20:52:37,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 20:52:37,549 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 20:52:37,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 20:52:37,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 20:52:37,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 20:52:37,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 20:52:37,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 20:52:37,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 20:52:37,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 20:52:37,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 20:52:37,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 20:52:37,551 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 20:52:37,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 20:52:37,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 20:52:37,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 20:52:37,893 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 20:52:37,894 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 20:52:37,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-08-25 20:52:39,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 20:52:39,403 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 20:52:39,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-08-25 20:52:39,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28259aee5/b931b17838c2416fb67f8792c275134d/FLAG9c9a460e8 [2023-08-25 20:52:39,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28259aee5/b931b17838c2416fb67f8792c275134d [2023-08-25 20:52:39,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 20:52:39,424 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 20:52:39,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 20:52:39,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 20:52:39,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 20:52:39,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694256b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39, skipping insertion in model container [2023-08-25 20:52:39,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,460 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 20:52:39,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 20:52:39,641 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 20:52:39,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 20:52:39,730 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 20:52:39,730 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 20:52:39,737 INFO L206 MainTranslator]: Completed translation [2023-08-25 20:52:39,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39 WrapperNode [2023-08-25 20:52:39,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 20:52:39,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 20:52:39,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 20:52:39,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 20:52:39,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,802 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 564 [2023-08-25 20:52:39,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 20:52:39,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 20:52:39,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 20:52:39,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 20:52:39,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 20:52:39,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 20:52:39,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 20:52:39,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 20:52:39,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (1/1) ... [2023-08-25 20:52:39,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 20:52:39,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:52:39,932 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) [2023-08-25 20:52:39,961 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 [2023-08-25 20:52:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 20:52:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 20:52:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 20:52:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 20:52:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 20:52:39,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 20:52:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 20:52:39,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 20:52:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 20:52:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 20:52:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 20:52:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 20:52:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 20:52:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 20:52:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 20:52:39,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 20:52:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 20:52:39,980 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 20:52:40,143 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 20:52:40,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 20:52:40,848 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 20:52:41,288 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 20:52:41,288 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-08-25 20:52:41,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:52:41 BoogieIcfgContainer [2023-08-25 20:52:41,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 20:52:41,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 20:52:41,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 20:52:41,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 20:52:41,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:52:39" (1/3) ... [2023-08-25 20:52:41,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d4266e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:52:41, skipping insertion in model container [2023-08-25 20:52:41,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:52:39" (2/3) ... [2023-08-25 20:52:41,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d4266e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:52:41, skipping insertion in model container [2023-08-25 20:52:41,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:52:41" (3/3) ... [2023-08-25 20:52:41,302 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2023-08-25 20:52:41,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 20:52:41,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2023-08-25 20:52:41,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 20:52:41,481 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 20:52:41,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 462 transitions, 948 flow [2023-08-25 20:52:41,666 INFO L124 PetriNetUnfolderBase]: 20/459 cut-off events. [2023-08-25 20:52:41,666 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 20:52:41,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 459 events. 20/459 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 853 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 340. Up to 3 conditions per place. [2023-08-25 20:52:41,675 INFO L82 GeneralOperation]: Start removeDead. Operand has 452 places, 462 transitions, 948 flow [2023-08-25 20:52:41,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 438 places, 448 transitions, 914 flow [2023-08-25 20:52:41,688 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 20:52:41,697 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 438 places, 448 transitions, 914 flow [2023-08-25 20:52:41,700 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 438 places, 448 transitions, 914 flow [2023-08-25 20:52:41,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 448 transitions, 914 flow [2023-08-25 20:52:41,791 INFO L124 PetriNetUnfolderBase]: 20/448 cut-off events. [2023-08-25 20:52:41,792 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 20:52:41,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 448 events. 20/448 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 850 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 340. Up to 3 conditions per place. [2023-08-25 20:52:41,804 INFO L119 LiptonReduction]: Number of co-enabled transitions 23604 [2023-08-25 20:52:55,440 INFO L134 LiptonReduction]: Checked pairs total: 87389 [2023-08-25 20:52:55,440 INFO L136 LiptonReduction]: Total number of compositions: 525 [2023-08-25 20:52:55,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 20:52:55,458 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4422541f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 20:52:55,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 156 error locations. [2023-08-25 20:52:55,459 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 20:52:55,459 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 20:52:55,459 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 20:52:55,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:52:55,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 20:52:55,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:52:55,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:52:55,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2353, now seen corresponding path program 1 times [2023-08-25 20:52:55,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:52:55,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323256112] [2023-08-25 20:52:55,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:52:55,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:52:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:52:55,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:52:55,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:52:55,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323256112] [2023-08-25 20:52:55,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323256112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:52:55,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:52:55,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 20:52:55,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649510195] [2023-08-25 20:52:55,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:52:55,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 20:52:55,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:52:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 20:52:55,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 20:52:55,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 987 [2023-08-25 20:52:55,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 294 flow. Second operand has 2 states, 2 states have (on average 393.5) internal successors, (787), 2 states have internal predecessors, (787), 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) [2023-08-25 20:52:55,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:52:55,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 987 [2023-08-25 20:52:55,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:52:55,888 INFO L124 PetriNetUnfolderBase]: 1202/2149 cut-off events. [2023-08-25 20:52:55,888 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2023-08-25 20:52:55,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3971 conditions, 2149 events. 1202/2149 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11582 event pairs, 901 based on Foata normal form. 94/1843 useless extension candidates. Maximal degree in co-relation 3422. Up to 1701 conditions per place. [2023-08-25 20:52:55,904 INFO L140 encePairwiseOnDemand]: 903/987 looper letters, 33 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2023-08-25 20:52:55,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 54 transitions, 192 flow [2023-08-25 20:52:55,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 20:52:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 20:52:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 903 transitions. [2023-08-25 20:52:55,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4574468085106383 [2023-08-25 20:52:55,924 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 903 transitions. [2023-08-25 20:52:55,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 903 transitions. [2023-08-25 20:52:55,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:52:55,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 903 transitions. [2023-08-25 20:52:55,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 451.5) internal successors, (903), 2 states have internal predecessors, (903), 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) [2023-08-25 20:52:55,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 987.0) internal successors, (2961), 3 states have internal predecessors, (2961), 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) [2023-08-25 20:52:55,945 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 987.0) internal successors, (2961), 3 states have internal predecessors, (2961), 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) [2023-08-25 20:52:55,946 INFO L175 Difference]: Start difference. First operand has 141 places, 138 transitions, 294 flow. Second operand 2 states and 903 transitions. [2023-08-25 20:52:55,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 54 transitions, 192 flow [2023-08-25 20:52:55,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 180 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 20:52:55,954 INFO L231 Difference]: Finished difference. Result has 54 places, 54 transitions, 114 flow [2023-08-25 20:52:55,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=54, PETRI_TRANSITIONS=54} [2023-08-25 20:52:55,959 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -87 predicate places. [2023-08-25 20:52:55,959 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 54 transitions, 114 flow [2023-08-25 20:52:55,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 393.5) internal successors, (787), 2 states have internal predecessors, (787), 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) [2023-08-25 20:52:55,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:52:55,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:52:55,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 20:52:55,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:52:55,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:52:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1726892563, now seen corresponding path program 1 times [2023-08-25 20:52:55,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:52:55,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014476677] [2023-08-25 20:52:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:52:55,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:52:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:52:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:52:56,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:52:56,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014476677] [2023-08-25 20:52:56,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014476677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:52:56,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:52:56,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:52:56,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752857671] [2023-08-25 20:52:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:52:56,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 20:52:56,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:52:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 20:52:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 20:52:56,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 987 [2023-08-25 20:52:56,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 54 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 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) [2023-08-25 20:52:56,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:52:56,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 987 [2023-08-25 20:52:56,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:52:56,525 INFO L124 PetriNetUnfolderBase]: 1690/2615 cut-off events. [2023-08-25 20:52:56,526 INFO L125 PetriNetUnfolderBase]: For 36/210 co-relation queries the response was YES. [2023-08-25 20:52:56,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5060 conditions, 2615 events. 1690/2615 cut-off events. For 36/210 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 12115 event pairs, 325 based on Foata normal form. 4/2191 useless extension candidates. Maximal degree in co-relation 5057. Up to 2119 conditions per place. [2023-08-25 20:52:56,539 INFO L140 encePairwiseOnDemand]: 979/987 looper letters, 46 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2023-08-25 20:52:56,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 66 transitions, 240 flow [2023-08-25 20:52:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 20:52:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 20:52:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1188 transitions. [2023-08-25 20:52:56,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012158054711246 [2023-08-25 20:52:56,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1188 transitions. [2023-08-25 20:52:56,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1188 transitions. [2023-08-25 20:52:56,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:52:56,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1188 transitions. [2023-08-25 20:52:56,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 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) [2023-08-25 20:52:56,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 987.0) internal successors, (3948), 4 states have internal predecessors, (3948), 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) [2023-08-25 20:52:56,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 987.0) internal successors, (3948), 4 states have internal predecessors, (3948), 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) [2023-08-25 20:52:56,554 INFO L175 Difference]: Start difference. First operand has 54 places, 54 transitions, 114 flow. Second operand 3 states and 1188 transitions. [2023-08-25 20:52:56,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 66 transitions, 240 flow [2023-08-25 20:52:56,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 66 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 20:52:56,557 INFO L231 Difference]: Finished difference. Result has 53 places, 54 transitions, 134 flow [2023-08-25 20:52:56,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2023-08-25 20:52:56,559 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -88 predicate places. [2023-08-25 20:52:56,560 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 134 flow [2023-08-25 20:52:56,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 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) [2023-08-25 20:52:56,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:52:56,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:52:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 20:52:56,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:52:56,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:52:56,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1864919434, now seen corresponding path program 1 times [2023-08-25 20:52:56,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:52:56,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307897205] [2023-08-25 20:52:56,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:52:56,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:52:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:52:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:52:56,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:52:56,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307897205] [2023-08-25 20:52:56,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307897205] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:52:56,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:52:56,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:52:56,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795827024] [2023-08-25 20:52:56,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:52:56,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:52:56,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:52:56,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:52:56,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:52:56,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 987 [2023-08-25 20:52:56,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 359.1666666666667) internal successors, (2155), 6 states have internal predecessors, (2155), 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) [2023-08-25 20:52:56,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:52:56,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 987 [2023-08-25 20:52:56,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:52:57,833 INFO L124 PetriNetUnfolderBase]: 5230/7070 cut-off events. [2023-08-25 20:52:57,834 INFO L125 PetriNetUnfolderBase]: For 917/917 co-relation queries the response was YES. [2023-08-25 20:52:57,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15452 conditions, 7070 events. 5230/7070 cut-off events. For 917/917 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 31638 event pairs, 446 based on Foata normal form. 0/5792 useless extension candidates. Maximal degree in co-relation 15448. Up to 2828 conditions per place. [2023-08-25 20:52:57,877 INFO L140 encePairwiseOnDemand]: 982/987 looper letters, 122 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2023-08-25 20:52:57,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 129 transitions, 596 flow [2023-08-25 20:52:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:52:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:52:57,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2254 transitions. [2023-08-25 20:52:57,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3806146572104019 [2023-08-25 20:52:57,884 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2254 transitions. [2023-08-25 20:52:57,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2254 transitions. [2023-08-25 20:52:57,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:52:57,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2254 transitions. [2023-08-25 20:52:57,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 375.6666666666667) internal successors, (2254), 6 states have internal predecessors, (2254), 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) [2023-08-25 20:52:57,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 987.0) internal successors, (6909), 7 states have internal predecessors, (6909), 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) [2023-08-25 20:52:57,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 987.0) internal successors, (6909), 7 states have internal predecessors, (6909), 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) [2023-08-25 20:52:57,901 INFO L175 Difference]: Start difference. First operand has 53 places, 54 transitions, 134 flow. Second operand 6 states and 2254 transitions. [2023-08-25 20:52:57,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 129 transitions, 596 flow [2023-08-25 20:52:57,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 129 transitions, 596 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 20:52:57,904 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 140 flow [2023-08-25 20:52:57,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=140, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2023-08-25 20:52:57,905 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -84 predicate places. [2023-08-25 20:52:57,905 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 140 flow [2023-08-25 20:52:57,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.1666666666667) internal successors, (2155), 6 states have internal predecessors, (2155), 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) [2023-08-25 20:52:57,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:52:57,907 INFO L208 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] [2023-08-25 20:52:57,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 20:52:57,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:52:57,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:52:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 513016736, now seen corresponding path program 1 times [2023-08-25 20:52:57,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:52:57,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356252896] [2023-08-25 20:52:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:52:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:52:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:52:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:52:58,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:52:58,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356252896] [2023-08-25 20:52:58,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356252896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:52:58,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:52:58,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 20:52:58,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782713445] [2023-08-25 20:52:58,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:52:58,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:52:58,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:52:58,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:52:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:52:58,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 987 [2023-08-25 20:52:58,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 357.5) internal successors, (1430), 4 states have internal predecessors, (1430), 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) [2023-08-25 20:52:58,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:52:58,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 987 [2023-08-25 20:52:58,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:52:58,398 INFO L124 PetriNetUnfolderBase]: 1698/2963 cut-off events. [2023-08-25 20:52:58,398 INFO L125 PetriNetUnfolderBase]: For 444/453 co-relation queries the response was YES. [2023-08-25 20:52:58,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6456 conditions, 2963 events. 1698/2963 cut-off events. For 444/453 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 16594 event pairs, 1091 based on Foata normal form. 50/2519 useless extension candidates. Maximal degree in co-relation 6451. Up to 2309 conditions per place. [2023-08-25 20:52:58,414 INFO L140 encePairwiseOnDemand]: 979/987 looper letters, 35 selfloop transitions, 2 changer transitions 18/72 dead transitions. [2023-08-25 20:52:58,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 72 transitions, 298 flow [2023-08-25 20:52:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 20:52:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 20:52:58,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1824 transitions. [2023-08-25 20:52:58,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3696048632218845 [2023-08-25 20:52:58,420 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1824 transitions. [2023-08-25 20:52:58,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1824 transitions. [2023-08-25 20:52:58,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:52:58,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1824 transitions. [2023-08-25 20:52:58,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 364.8) internal successors, (1824), 5 states have internal predecessors, (1824), 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) [2023-08-25 20:52:58,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 987.0) internal successors, (5922), 6 states have internal predecessors, (5922), 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) [2023-08-25 20:52:58,433 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 987.0) internal successors, (5922), 6 states have internal predecessors, (5922), 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) [2023-08-25 20:52:58,433 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 140 flow. Second operand 5 states and 1824 transitions. [2023-08-25 20:52:58,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 72 transitions, 298 flow [2023-08-25 20:52:58,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 72 transitions, 289 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 20:52:58,439 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 155 flow [2023-08-25 20:52:58,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2023-08-25 20:52:58,440 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -81 predicate places. [2023-08-25 20:52:58,440 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 155 flow [2023-08-25 20:52:58,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 357.5) internal successors, (1430), 4 states have internal predecessors, (1430), 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) [2023-08-25 20:52:58,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:52:58,441 INFO L208 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] [2023-08-25 20:52:58,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 20:52:58,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:52:58,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:52:58,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1026268963, now seen corresponding path program 1 times [2023-08-25 20:52:58,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:52:58,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111359991] [2023-08-25 20:52:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:52:58,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:52:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:52:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:52:58,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:52:58,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111359991] [2023-08-25 20:52:58,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111359991] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:52:58,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:52:58,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:52:58,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44635996] [2023-08-25 20:52:58,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:52:58,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:52:58,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:52:58,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:52:58,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:52:58,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 987 [2023-08-25 20:52:58,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 360.8333333333333) internal successors, (2165), 6 states have internal predecessors, (2165), 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) [2023-08-25 20:52:58,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:52:58,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 987 [2023-08-25 20:52:58,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:52:59,536 INFO L124 PetriNetUnfolderBase]: 5076/6887 cut-off events. [2023-08-25 20:52:59,537 INFO L125 PetriNetUnfolderBase]: For 1464/1464 co-relation queries the response was YES. [2023-08-25 20:52:59,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16530 conditions, 6887 events. 5076/6887 cut-off events. For 1464/1464 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 30274 event pairs, 3129 based on Foata normal form. 0/5672 useless extension candidates. Maximal degree in co-relation 16522. Up to 6269 conditions per place. [2023-08-25 20:52:59,577 INFO L140 encePairwiseOnDemand]: 982/987 looper letters, 86 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2023-08-25 20:52:59,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 93 transitions, 429 flow [2023-08-25 20:52:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:52:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:52:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2229 transitions. [2023-08-25 20:52:59,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37639311043566365 [2023-08-25 20:52:59,583 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2229 transitions. [2023-08-25 20:52:59,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2229 transitions. [2023-08-25 20:52:59,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:52:59,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2229 transitions. [2023-08-25 20:52:59,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 371.5) internal successors, (2229), 6 states have internal predecessors, (2229), 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) [2023-08-25 20:52:59,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 987.0) internal successors, (6909), 7 states have internal predecessors, (6909), 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) [2023-08-25 20:52:59,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 987.0) internal successors, (6909), 7 states have internal predecessors, (6909), 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) [2023-08-25 20:52:59,598 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 155 flow. Second operand 6 states and 2229 transitions. [2023-08-25 20:52:59,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 93 transitions, 429 flow [2023-08-25 20:52:59,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 93 transitions, 421 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 20:52:59,602 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 153 flow [2023-08-25 20:52:59,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=153, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2023-08-25 20:52:59,603 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -81 predicate places. [2023-08-25 20:52:59,603 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 153 flow [2023-08-25 20:52:59,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 360.8333333333333) internal successors, (2165), 6 states have internal predecessors, (2165), 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) [2023-08-25 20:52:59,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:52:59,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:52:59,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 20:52:59,604 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:52:59,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:52:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash -161013464, now seen corresponding path program 1 times [2023-08-25 20:52:59,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:52:59,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206644549] [2023-08-25 20:52:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:52:59,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:52:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:52:59,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:52:59,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:52:59,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206644549] [2023-08-25 20:52:59,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206644549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:52:59,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:52:59,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 20:52:59,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449321959] [2023-08-25 20:52:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:52:59,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:52:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:52:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:52:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:52:59,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 987 [2023-08-25 20:52:59,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 359.25) internal successors, (1437), 4 states have internal predecessors, (1437), 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) [2023-08-25 20:52:59,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:52:59,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 987 [2023-08-25 20:52:59,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:00,104 INFO L124 PetriNetUnfolderBase]: 1988/3326 cut-off events. [2023-08-25 20:53:00,105 INFO L125 PetriNetUnfolderBase]: For 655/675 co-relation queries the response was YES. [2023-08-25 20:53:00,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7685 conditions, 3326 events. 1988/3326 cut-off events. For 655/675 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 18239 event pairs, 1347 based on Foata normal form. 118/2936 useless extension candidates. Maximal degree in co-relation 7678. Up to 2310 conditions per place. [2023-08-25 20:53:00,124 INFO L140 encePairwiseOnDemand]: 982/987 looper letters, 36 selfloop transitions, 2 changer transitions 20/74 dead transitions. [2023-08-25 20:53:00,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 333 flow [2023-08-25 20:53:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 20:53:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 20:53:00,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1470 transitions. [2023-08-25 20:53:00,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3723404255319149 [2023-08-25 20:53:00,129 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1470 transitions. [2023-08-25 20:53:00,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1470 transitions. [2023-08-25 20:53:00,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:00,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1470 transitions. [2023-08-25 20:53:00,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 367.5) internal successors, (1470), 4 states have internal predecessors, (1470), 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) [2023-08-25 20:53:00,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 987.0) internal successors, (4935), 5 states have internal predecessors, (4935), 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) [2023-08-25 20:53:00,139 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 987.0) internal successors, (4935), 5 states have internal predecessors, (4935), 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) [2023-08-25 20:53:00,140 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 153 flow. Second operand 4 states and 1470 transitions. [2023-08-25 20:53:00,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 333 flow [2023-08-25 20:53:00,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 324 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 20:53:00,142 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 162 flow [2023-08-25 20:53:00,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2023-08-25 20:53:00,143 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -80 predicate places. [2023-08-25 20:53:00,143 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 162 flow [2023-08-25 20:53:00,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 359.25) internal successors, (1437), 4 states have internal predecessors, (1437), 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) [2023-08-25 20:53:00,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:00,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:53:00,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 20:53:00,144 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:00,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:00,145 INFO L85 PathProgramCache]: Analyzing trace with hash -200587314, now seen corresponding path program 1 times [2023-08-25 20:53:00,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:00,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524024895] [2023-08-25 20:53:00,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:00,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:00,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:00,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524024895] [2023-08-25 20:53:00,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524024895] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:00,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:00,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:53:00,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386455525] [2023-08-25 20:53:00,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:00,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:53:00,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:53:00,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:53:00,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 987 [2023-08-25 20:53:00,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 362.6666666666667) internal successors, (2176), 6 states have internal predecessors, (2176), 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) [2023-08-25 20:53:00,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:00,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 987 [2023-08-25 20:53:00,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:01,345 INFO L124 PetriNetUnfolderBase]: 5071/6878 cut-off events. [2023-08-25 20:53:01,345 INFO L125 PetriNetUnfolderBase]: For 1981/1981 co-relation queries the response was YES. [2023-08-25 20:53:01,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17223 conditions, 6878 events. 5071/6878 cut-off events. For 1981/1981 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 30247 event pairs, 3363 based on Foata normal form. 0/5670 useless extension candidates. Maximal degree in co-relation 17214. Up to 6760 conditions per place. [2023-08-25 20:53:01,378 INFO L140 encePairwiseOnDemand]: 982/987 looper letters, 66 selfloop transitions, 4 changer transitions 0/73 dead transitions. [2023-08-25 20:53:01,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 73 transitions, 356 flow [2023-08-25 20:53:01,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:53:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:53:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2208 transitions. [2023-08-25 20:53:01,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3728470111448835 [2023-08-25 20:53:01,385 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2208 transitions. [2023-08-25 20:53:01,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2208 transitions. [2023-08-25 20:53:01,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:01,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2208 transitions. [2023-08-25 20:53:01,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 368.0) internal successors, (2208), 6 states have internal predecessors, (2208), 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) [2023-08-25 20:53:01,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 987.0) internal successors, (6909), 7 states have internal predecessors, (6909), 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) [2023-08-25 20:53:01,400 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 987.0) internal successors, (6909), 7 states have internal predecessors, (6909), 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) [2023-08-25 20:53:01,400 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 162 flow. Second operand 6 states and 2208 transitions. [2023-08-25 20:53:01,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 73 transitions, 356 flow [2023-08-25 20:53:01,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 73 transitions, 352 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 20:53:01,403 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 164 flow [2023-08-25 20:53:01,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2023-08-25 20:53:01,403 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -78 predicate places. [2023-08-25 20:53:01,403 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 164 flow [2023-08-25 20:53:01,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 362.6666666666667) internal successors, (2176), 6 states have internal predecessors, (2176), 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) [2023-08-25 20:53:01,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:01,404 INFO L208 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] [2023-08-25 20:53:01,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 20:53:01,405 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:01,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:01,405 INFO L85 PathProgramCache]: Analyzing trace with hash 271404731, now seen corresponding path program 1 times [2023-08-25 20:53:01,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:01,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431068407] [2023-08-25 20:53:01,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:01,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:02,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:02,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431068407] [2023-08-25 20:53:02,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431068407] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:02,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:02,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:02,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724836585] [2023-08-25 20:53:02,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:02,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:02,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:02,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:02,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:02,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:02,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 164 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:02,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:02,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:02,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:03,589 INFO L124 PetriNetUnfolderBase]: 2571/3854 cut-off events. [2023-08-25 20:53:03,589 INFO L125 PetriNetUnfolderBase]: For 770/913 co-relation queries the response was YES. [2023-08-25 20:53:03,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9148 conditions, 3854 events. 2571/3854 cut-off events. For 770/913 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18465 event pairs, 70 based on Foata normal form. 28/3279 useless extension candidates. Maximal degree in co-relation 9139. Up to 2297 conditions per place. [2023-08-25 20:53:03,611 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 118 selfloop transitions, 42 changer transitions 3/177 dead transitions. [2023-08-25 20:53:03,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 177 transitions, 839 flow [2023-08-25 20:53:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4548 transitions. [2023-08-25 20:53:03,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3839918946301925 [2023-08-25 20:53:03,625 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4548 transitions. [2023-08-25 20:53:03,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4548 transitions. [2023-08-25 20:53:03,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:03,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4548 transitions. [2023-08-25 20:53:03,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 379.0) internal successors, (4548), 12 states have internal predecessors, (4548), 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) [2023-08-25 20:53:03,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:03,654 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:03,654 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 164 flow. Second operand 12 states and 4548 transitions. [2023-08-25 20:53:03,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 177 transitions, 839 flow [2023-08-25 20:53:03,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 177 transitions, 828 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 20:53:03,662 INFO L231 Difference]: Finished difference. Result has 78 places, 93 transitions, 406 flow [2023-08-25 20:53:03,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=406, PETRI_PLACES=78, PETRI_TRANSITIONS=93} [2023-08-25 20:53:03,664 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -63 predicate places. [2023-08-25 20:53:03,664 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 93 transitions, 406 flow [2023-08-25 20:53:03,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:03,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:03,667 INFO L208 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] [2023-08-25 20:53:03,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 20:53:03,667 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:03,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1654942215, now seen corresponding path program 2 times [2023-08-25 20:53:03,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:03,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498430147] [2023-08-25 20:53:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:03,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:03,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:03,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498430147] [2023-08-25 20:53:03,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498430147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:03,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:03,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:53:03,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55345111] [2023-08-25 20:53:03,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:03,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 20:53:03,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:03,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 20:53:03,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 20:53:03,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 987 [2023-08-25 20:53:03,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 93 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 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) [2023-08-25 20:53:03,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:03,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 987 [2023-08-25 20:53:03,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:04,104 INFO L124 PetriNetUnfolderBase]: 2245/3604 cut-off events. [2023-08-25 20:53:04,104 INFO L125 PetriNetUnfolderBase]: For 3117/3209 co-relation queries the response was YES. [2023-08-25 20:53:04,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10725 conditions, 3604 events. 2245/3604 cut-off events. For 3117/3209 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 17958 event pairs, 580 based on Foata normal form. 49/3259 useless extension candidates. Maximal degree in co-relation 10708. Up to 3023 conditions per place. [2023-08-25 20:53:04,132 INFO L140 encePairwiseOnDemand]: 983/987 looper letters, 87 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2023-08-25 20:53:04,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 107 transitions, 645 flow [2023-08-25 20:53:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 20:53:04,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 20:53:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1214 transitions. [2023-08-25 20:53:04,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4099966227625802 [2023-08-25 20:53:04,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1214 transitions. [2023-08-25 20:53:04,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1214 transitions. [2023-08-25 20:53:04,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:04,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1214 transitions. [2023-08-25 20:53:04,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 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) [2023-08-25 20:53:04,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 987.0) internal successors, (3948), 4 states have internal predecessors, (3948), 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) [2023-08-25 20:53:04,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 987.0) internal successors, (3948), 4 states have internal predecessors, (3948), 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) [2023-08-25 20:53:04,142 INFO L175 Difference]: Start difference. First operand has 78 places, 93 transitions, 406 flow. Second operand 3 states and 1214 transitions. [2023-08-25 20:53:04,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 107 transitions, 645 flow [2023-08-25 20:53:04,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 107 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 20:53:04,151 INFO L231 Difference]: Finished difference. Result has 80 places, 93 transitions, 422 flow [2023-08-25 20:53:04,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=80, PETRI_TRANSITIONS=93} [2023-08-25 20:53:04,152 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -61 predicate places. [2023-08-25 20:53:04,152 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 93 transitions, 422 flow [2023-08-25 20:53:04,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 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) [2023-08-25 20:53:04,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:04,153 INFO L208 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] [2023-08-25 20:53:04,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 20:53:04,153 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:04,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash 620932963, now seen corresponding path program 3 times [2023-08-25 20:53:04,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:04,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211461007] [2023-08-25 20:53:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:04,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:04,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:04,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211461007] [2023-08-25 20:53:04,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211461007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:04,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:04,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:53:04,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493583740] [2023-08-25 20:53:04,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:04,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 20:53:04,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:04,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 20:53:04,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 20:53:04,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 987 [2023-08-25 20:53:04,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 93 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 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) [2023-08-25 20:53:04,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:04,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 987 [2023-08-25 20:53:04,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:04,548 INFO L124 PetriNetUnfolderBase]: 1836/2951 cut-off events. [2023-08-25 20:53:04,549 INFO L125 PetriNetUnfolderBase]: For 3629/3747 co-relation queries the response was YES. [2023-08-25 20:53:04,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9167 conditions, 2951 events. 1836/2951 cut-off events. For 3629/3747 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 14654 event pairs, 548 based on Foata normal form. 122/2747 useless extension candidates. Maximal degree in co-relation 9148. Up to 1944 conditions per place. [2023-08-25 20:53:04,569 INFO L140 encePairwiseOnDemand]: 984/987 looper letters, 93 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2023-08-25 20:53:04,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 110 transitions, 686 flow [2023-08-25 20:53:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 20:53:04,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 20:53:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1215 transitions. [2023-08-25 20:53:04,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41033434650455924 [2023-08-25 20:53:04,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1215 transitions. [2023-08-25 20:53:04,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1215 transitions. [2023-08-25 20:53:04,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:04,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1215 transitions. [2023-08-25 20:53:04,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 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) [2023-08-25 20:53:04,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 987.0) internal successors, (3948), 4 states have internal predecessors, (3948), 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) [2023-08-25 20:53:04,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 987.0) internal successors, (3948), 4 states have internal predecessors, (3948), 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) [2023-08-25 20:53:04,580 INFO L175 Difference]: Start difference. First operand has 80 places, 93 transitions, 422 flow. Second operand 3 states and 1215 transitions. [2023-08-25 20:53:04,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 110 transitions, 686 flow [2023-08-25 20:53:04,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 110 transitions, 663 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-25 20:53:04,588 INFO L231 Difference]: Finished difference. Result has 79 places, 90 transitions, 400 flow [2023-08-25 20:53:04,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=79, PETRI_TRANSITIONS=90} [2023-08-25 20:53:04,589 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -62 predicate places. [2023-08-25 20:53:04,589 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 90 transitions, 400 flow [2023-08-25 20:53:04,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 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) [2023-08-25 20:53:04,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:04,590 INFO L208 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] [2023-08-25 20:53:04,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 20:53:04,590 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:04,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash -795005493, now seen corresponding path program 4 times [2023-08-25 20:53:04,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108689334] [2023-08-25 20:53:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:04,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:05,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:05,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108689334] [2023-08-25 20:53:05,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108689334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:05,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:05,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:05,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808618133] [2023-08-25 20:53:05,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:05,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:05,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:05,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:05,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:05,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 90 transitions, 400 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:05,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:05,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:05,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:06,212 INFO L124 PetriNetUnfolderBase]: 2164/3552 cut-off events. [2023-08-25 20:53:06,213 INFO L125 PetriNetUnfolderBase]: For 3456/3610 co-relation queries the response was YES. [2023-08-25 20:53:06,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10902 conditions, 3552 events. 2164/3552 cut-off events. For 3456/3610 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 18482 event pairs, 355 based on Foata normal form. 54/3175 useless extension candidates. Maximal degree in co-relation 10884. Up to 2498 conditions per place. [2023-08-25 20:53:06,240 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 111 selfloop transitions, 45 changer transitions 4/174 dead transitions. [2023-08-25 20:53:06,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 174 transitions, 1091 flow [2023-08-25 20:53:06,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:06,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:06,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4147 transitions. [2023-08-25 20:53:06,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3819655521783181 [2023-08-25 20:53:06,251 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4147 transitions. [2023-08-25 20:53:06,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4147 transitions. [2023-08-25 20:53:06,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:06,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4147 transitions. [2023-08-25 20:53:06,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.0) internal successors, (4147), 11 states have internal predecessors, (4147), 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) [2023-08-25 20:53:06,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:06,274 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:06,274 INFO L175 Difference]: Start difference. First operand has 79 places, 90 transitions, 400 flow. Second operand 11 states and 4147 transitions. [2023-08-25 20:53:06,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 174 transitions, 1091 flow [2023-08-25 20:53:06,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 174 transitions, 1072 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 20:53:06,287 INFO L231 Difference]: Finished difference. Result has 94 places, 118 transitions, 727 flow [2023-08-25 20:53:06,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=727, PETRI_PLACES=94, PETRI_TRANSITIONS=118} [2023-08-25 20:53:06,287 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -47 predicate places. [2023-08-25 20:53:06,287 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 118 transitions, 727 flow [2023-08-25 20:53:06,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:06,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:06,288 INFO L208 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] [2023-08-25 20:53:06,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 20:53:06,289 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:06,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:06,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1978636177, now seen corresponding path program 5 times [2023-08-25 20:53:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:06,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710408747] [2023-08-25 20:53:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:06,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:07,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:07,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710408747] [2023-08-25 20:53:07,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710408747] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:07,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:07,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:07,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298690179] [2023-08-25 20:53:07,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:07,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:07,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:07,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:07,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:07,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:07,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 118 transitions, 727 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:07,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:07,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:07,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:08,103 INFO L124 PetriNetUnfolderBase]: 2261/3688 cut-off events. [2023-08-25 20:53:08,103 INFO L125 PetriNetUnfolderBase]: For 5524/5647 co-relation queries the response was YES. [2023-08-25 20:53:08,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12634 conditions, 3688 events. 2261/3688 cut-off events. For 5524/5647 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 19458 event pairs, 302 based on Foata normal form. 63/3420 useless extension candidates. Maximal degree in co-relation 12610. Up to 2620 conditions per place. [2023-08-25 20:53:08,135 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 126 selfloop transitions, 48 changer transitions 4/192 dead transitions. [2023-08-25 20:53:08,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 192 transitions, 1400 flow [2023-08-25 20:53:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:08,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4148 transitions. [2023-08-25 20:53:08,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38205765865340335 [2023-08-25 20:53:08,144 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4148 transitions. [2023-08-25 20:53:08,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4148 transitions. [2023-08-25 20:53:08,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:08,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4148 transitions. [2023-08-25 20:53:08,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.09090909090907) internal successors, (4148), 11 states have internal predecessors, (4148), 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) [2023-08-25 20:53:08,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:08,166 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:08,166 INFO L175 Difference]: Start difference. First operand has 94 places, 118 transitions, 727 flow. Second operand 11 states and 4148 transitions. [2023-08-25 20:53:08,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 192 transitions, 1400 flow [2023-08-25 20:53:08,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 192 transitions, 1342 flow, removed 28 selfloop flow, removed 1 redundant places. [2023-08-25 20:53:08,189 INFO L231 Difference]: Finished difference. Result has 106 places, 133 transitions, 919 flow [2023-08-25 20:53:08,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=919, PETRI_PLACES=106, PETRI_TRANSITIONS=133} [2023-08-25 20:53:08,190 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -35 predicate places. [2023-08-25 20:53:08,190 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 133 transitions, 919 flow [2023-08-25 20:53:08,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:08,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:08,191 INFO L208 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] [2023-08-25 20:53:08,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 20:53:08,191 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:08,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:08,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1920805143, now seen corresponding path program 6 times [2023-08-25 20:53:08,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:08,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488795576] [2023-08-25 20:53:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:08,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:09,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:09,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488795576] [2023-08-25 20:53:09,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488795576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:09,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:09,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:09,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386600197] [2023-08-25 20:53:09,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:09,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:09,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:09,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:09,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:09,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 133 transitions, 919 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:09,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:09,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:09,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:10,070 INFO L124 PetriNetUnfolderBase]: 2488/4089 cut-off events. [2023-08-25 20:53:10,070 INFO L125 PetriNetUnfolderBase]: For 8034/8250 co-relation queries the response was YES. [2023-08-25 20:53:10,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14853 conditions, 4089 events. 2488/4089 cut-off events. For 8034/8250 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 22155 event pairs, 394 based on Foata normal form. 55/3753 useless extension candidates. Maximal degree in co-relation 14825. Up to 2818 conditions per place. [2023-08-25 20:53:10,101 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 141 selfloop transitions, 57 changer transitions 3/215 dead transitions. [2023-08-25 20:53:10,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 215 transitions, 1713 flow [2023-08-25 20:53:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4160 transitions. [2023-08-25 20:53:10,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3831629363544257 [2023-08-25 20:53:10,110 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4160 transitions. [2023-08-25 20:53:10,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4160 transitions. [2023-08-25 20:53:10,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:10,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4160 transitions. [2023-08-25 20:53:10,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 378.1818181818182) internal successors, (4160), 11 states have internal predecessors, (4160), 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) [2023-08-25 20:53:10,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:10,133 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:10,133 INFO L175 Difference]: Start difference. First operand has 106 places, 133 transitions, 919 flow. Second operand 11 states and 4160 transitions. [2023-08-25 20:53:10,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 215 transitions, 1713 flow [2023-08-25 20:53:10,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 215 transitions, 1637 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-25 20:53:10,162 INFO L231 Difference]: Finished difference. Result has 115 places, 153 transitions, 1199 flow [2023-08-25 20:53:10,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1199, PETRI_PLACES=115, PETRI_TRANSITIONS=153} [2023-08-25 20:53:10,163 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -26 predicate places. [2023-08-25 20:53:10,163 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 153 transitions, 1199 flow [2023-08-25 20:53:10,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:10,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:10,164 INFO L208 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] [2023-08-25 20:53:10,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 20:53:10,164 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:10,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1132189, now seen corresponding path program 7 times [2023-08-25 20:53:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:10,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313860729] [2023-08-25 20:53:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:11,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:11,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313860729] [2023-08-25 20:53:11,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313860729] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:11,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:11,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:11,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167593100] [2023-08-25 20:53:11,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:11,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:11,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:11,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:11,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:11,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:11,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 153 transitions, 1199 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:11,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:11,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:11,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:12,275 INFO L124 PetriNetUnfolderBase]: 2767/4470 cut-off events. [2023-08-25 20:53:12,275 INFO L125 PetriNetUnfolderBase]: For 11608/11791 co-relation queries the response was YES. [2023-08-25 20:53:12,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17729 conditions, 4470 events. 2767/4470 cut-off events. For 11608/11791 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 24545 event pairs, 247 based on Foata normal form. 61/4105 useless extension candidates. Maximal degree in co-relation 17696. Up to 2421 conditions per place. [2023-08-25 20:53:12,316 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 136 selfloop transitions, 92 changer transitions 3/245 dead transitions. [2023-08-25 20:53:12,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 245 transitions, 2052 flow [2023-08-25 20:53:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:12,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:12,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4544 transitions. [2023-08-25 20:53:12,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38365417088821346 [2023-08-25 20:53:12,325 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4544 transitions. [2023-08-25 20:53:12,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4544 transitions. [2023-08-25 20:53:12,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:12,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4544 transitions. [2023-08-25 20:53:12,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 378.6666666666667) internal successors, (4544), 12 states have internal predecessors, (4544), 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) [2023-08-25 20:53:12,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:12,342 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:12,342 INFO L175 Difference]: Start difference. First operand has 115 places, 153 transitions, 1199 flow. Second operand 12 states and 4544 transitions. [2023-08-25 20:53:12,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 245 transitions, 2052 flow [2023-08-25 20:53:12,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 245 transitions, 1955 flow, removed 37 selfloop flow, removed 3 redundant places. [2023-08-25 20:53:12,398 INFO L231 Difference]: Finished difference. Result has 126 places, 167 transitions, 1478 flow [2023-08-25 20:53:12,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1478, PETRI_PLACES=126, PETRI_TRANSITIONS=167} [2023-08-25 20:53:12,398 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -15 predicate places. [2023-08-25 20:53:12,399 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 167 transitions, 1478 flow [2023-08-25 20:53:12,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:12,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:12,400 INFO L208 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] [2023-08-25 20:53:12,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 20:53:12,400 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:12,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:12,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2099639431, now seen corresponding path program 8 times [2023-08-25 20:53:12,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:12,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080334374] [2023-08-25 20:53:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:12,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:13,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:13,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080334374] [2023-08-25 20:53:13,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080334374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:13,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:13,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:13,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961145900] [2023-08-25 20:53:13,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:13,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:13,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:13,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:13,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:13,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 167 transitions, 1478 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:13,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:13,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:13,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:14,408 INFO L124 PetriNetUnfolderBase]: 2757/4455 cut-off events. [2023-08-25 20:53:14,408 INFO L125 PetriNetUnfolderBase]: For 14218/14401 co-relation queries the response was YES. [2023-08-25 20:53:14,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19004 conditions, 4455 events. 2757/4455 cut-off events. For 14218/14401 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 24569 event pairs, 284 based on Foata normal form. 57/4105 useless extension candidates. Maximal degree in co-relation 18968. Up to 3094 conditions per place. [2023-08-25 20:53:14,454 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 142 selfloop transitions, 76 changer transitions 4/236 dead transitions. [2023-08-25 20:53:14,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 236 transitions, 2169 flow [2023-08-25 20:53:14,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:14,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4528 transitions. [2023-08-25 20:53:14,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38230327592029717 [2023-08-25 20:53:14,462 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4528 transitions. [2023-08-25 20:53:14,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4528 transitions. [2023-08-25 20:53:14,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:14,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4528 transitions. [2023-08-25 20:53:14,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 377.3333333333333) internal successors, (4528), 12 states have internal predecessors, (4528), 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) [2023-08-25 20:53:14,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:14,478 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:14,479 INFO L175 Difference]: Start difference. First operand has 126 places, 167 transitions, 1478 flow. Second operand 12 states and 4528 transitions. [2023-08-25 20:53:14,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 236 transitions, 2169 flow [2023-08-25 20:53:14,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 236 transitions, 1989 flow, removed 48 selfloop flow, removed 6 redundant places. [2023-08-25 20:53:14,593 INFO L231 Difference]: Finished difference. Result has 133 places, 170 transitions, 1503 flow [2023-08-25 20:53:14,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1503, PETRI_PLACES=133, PETRI_TRANSITIONS=170} [2023-08-25 20:53:14,593 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -8 predicate places. [2023-08-25 20:53:14,593 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 170 transitions, 1503 flow [2023-08-25 20:53:14,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:14,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:14,594 INFO L208 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] [2023-08-25 20:53:14,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 20:53:14,595 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:14,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:14,595 INFO L85 PathProgramCache]: Analyzing trace with hash -334485873, now seen corresponding path program 9 times [2023-08-25 20:53:14,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:14,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405834849] [2023-08-25 20:53:14,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:14,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:15,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:15,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405834849] [2023-08-25 20:53:15,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405834849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:15,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:15,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:15,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840885173] [2023-08-25 20:53:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:15,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:15,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:15,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:15,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:15,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 170 transitions, 1503 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:15,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:15,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:15,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:16,589 INFO L124 PetriNetUnfolderBase]: 2887/4690 cut-off events. [2023-08-25 20:53:16,589 INFO L125 PetriNetUnfolderBase]: For 16709/16898 co-relation queries the response was YES. [2023-08-25 20:53:16,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20260 conditions, 4690 events. 2887/4690 cut-off events. For 16709/16898 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 26242 event pairs, 298 based on Foata normal form. 60/4295 useless extension candidates. Maximal degree in co-relation 20221. Up to 3149 conditions per place. [2023-08-25 20:53:16,631 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 152 selfloop transitions, 82 changer transitions 3/251 dead transitions. [2023-08-25 20:53:16,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 251 transitions, 2286 flow [2023-08-25 20:53:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:16,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:16,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4537 transitions. [2023-08-25 20:53:16,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830631543397501 [2023-08-25 20:53:16,637 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4537 transitions. [2023-08-25 20:53:16,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4537 transitions. [2023-08-25 20:53:16,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:16,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4537 transitions. [2023-08-25 20:53:16,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 378.0833333333333) internal successors, (4537), 12 states have internal predecessors, (4537), 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) [2023-08-25 20:53:16,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:16,652 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:16,653 INFO L175 Difference]: Start difference. First operand has 133 places, 170 transitions, 1503 flow. Second operand 12 states and 4537 transitions. [2023-08-25 20:53:16,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 251 transitions, 2286 flow [2023-08-25 20:53:16,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 251 transitions, 2160 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-08-25 20:53:16,732 INFO L231 Difference]: Finished difference. Result has 139 places, 178 transitions, 1662 flow [2023-08-25 20:53:16,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1377, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1662, PETRI_PLACES=139, PETRI_TRANSITIONS=178} [2023-08-25 20:53:16,733 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -2 predicate places. [2023-08-25 20:53:16,733 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 178 transitions, 1662 flow [2023-08-25 20:53:16,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:16,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:16,734 INFO L208 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] [2023-08-25 20:53:16,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 20:53:16,734 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:16,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1241307181, now seen corresponding path program 10 times [2023-08-25 20:53:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:16,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536344197] [2023-08-25 20:53:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:16,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:17,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:17,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536344197] [2023-08-25 20:53:17,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536344197] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:17,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:17,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:17,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137790220] [2023-08-25 20:53:17,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:17,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:17,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:17,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:17,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:17,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:17,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 178 transitions, 1662 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:17,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:17,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:17,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:18,650 INFO L124 PetriNetUnfolderBase]: 2938/5061 cut-off events. [2023-08-25 20:53:18,651 INFO L125 PetriNetUnfolderBase]: For 20529/20654 co-relation queries the response was YES. [2023-08-25 20:53:18,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22130 conditions, 5061 events. 2938/5061 cut-off events. For 20529/20654 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 30583 event pairs, 532 based on Foata normal form. 48/4659 useless extension candidates. Maximal degree in co-relation 22087. Up to 3689 conditions per place. [2023-08-25 20:53:18,689 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 168 selfloop transitions, 50 changer transitions 4/236 dead transitions. [2023-08-25 20:53:18,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 236 transitions, 2382 flow [2023-08-25 20:53:18,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4141 transitions. [2023-08-25 20:53:18,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38141291332780697 [2023-08-25 20:53:18,696 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4141 transitions. [2023-08-25 20:53:18,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4141 transitions. [2023-08-25 20:53:18,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:18,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4141 transitions. [2023-08-25 20:53:18,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 376.45454545454544) internal successors, (4141), 11 states have internal predecessors, (4141), 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) [2023-08-25 20:53:18,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:18,709 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:18,709 INFO L175 Difference]: Start difference. First operand has 139 places, 178 transitions, 1662 flow. Second operand 11 states and 4141 transitions. [2023-08-25 20:53:18,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 236 transitions, 2382 flow [2023-08-25 20:53:18,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 236 transitions, 2185 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-08-25 20:53:18,809 INFO L231 Difference]: Finished difference. Result has 143 places, 184 transitions, 1676 flow [2023-08-25 20:53:18,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1465, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1676, PETRI_PLACES=143, PETRI_TRANSITIONS=184} [2023-08-25 20:53:18,810 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 2 predicate places. [2023-08-25 20:53:18,810 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 184 transitions, 1676 flow [2023-08-25 20:53:18,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:18,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:18,811 INFO L208 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] [2023-08-25 20:53:18,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 20:53:18,811 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:18,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2137583281, now seen corresponding path program 11 times [2023-08-25 20:53:18,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:18,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062822356] [2023-08-25 20:53:18,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:18,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:19,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:19,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062822356] [2023-08-25 20:53:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062822356] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:19,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:19,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:19,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528311002] [2023-08-25 20:53:19,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:19,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:19,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:19,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:19,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:19,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 184 transitions, 1676 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:19,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:19,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:19,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:20,734 INFO L124 PetriNetUnfolderBase]: 3200/5505 cut-off events. [2023-08-25 20:53:20,734 INFO L125 PetriNetUnfolderBase]: For 24230/24336 co-relation queries the response was YES. [2023-08-25 20:53:20,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23913 conditions, 5505 events. 3200/5505 cut-off events. For 24230/24336 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 33934 event pairs, 556 based on Foata normal form. 48/5070 useless extension candidates. Maximal degree in co-relation 23868. Up to 3840 conditions per place. [2023-08-25 20:53:20,788 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 182 selfloop transitions, 57 changer transitions 3/256 dead transitions. [2023-08-25 20:53:20,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 256 transitions, 2539 flow [2023-08-25 20:53:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4155 transitions. [2023-08-25 20:53:20,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38270240397899974 [2023-08-25 20:53:20,793 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4155 transitions. [2023-08-25 20:53:20,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4155 transitions. [2023-08-25 20:53:20,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:20,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4155 transitions. [2023-08-25 20:53:20,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.72727272727275) internal successors, (4155), 11 states have internal predecessors, (4155), 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) [2023-08-25 20:53:20,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:20,807 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:20,808 INFO L175 Difference]: Start difference. First operand has 143 places, 184 transitions, 1676 flow. Second operand 11 states and 4155 transitions. [2023-08-25 20:53:20,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 256 transitions, 2539 flow [2023-08-25 20:53:20,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 256 transitions, 2398 flow, removed 43 selfloop flow, removed 7 redundant places. [2023-08-25 20:53:20,944 INFO L231 Difference]: Finished difference. Result has 148 places, 197 transitions, 1864 flow [2023-08-25 20:53:20,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1864, PETRI_PLACES=148, PETRI_TRANSITIONS=197} [2023-08-25 20:53:20,945 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 7 predicate places. [2023-08-25 20:53:20,945 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 197 transitions, 1864 flow [2023-08-25 20:53:20,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:20,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:20,946 INFO L208 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] [2023-08-25 20:53:20,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 20:53:20,946 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:20,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:20,946 INFO L85 PathProgramCache]: Analyzing trace with hash 80038531, now seen corresponding path program 12 times [2023-08-25 20:53:20,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:20,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844164400] [2023-08-25 20:53:20,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:20,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:21,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:21,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844164400] [2023-08-25 20:53:21,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844164400] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:21,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:21,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:21,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438461389] [2023-08-25 20:53:21,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:21,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:21,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:21,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:21,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:21,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:21,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 197 transitions, 1864 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:21,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:21,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:21,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:22,823 INFO L124 PetriNetUnfolderBase]: 3255/5640 cut-off events. [2023-08-25 20:53:22,824 INFO L125 PetriNetUnfolderBase]: For 29706/29827 co-relation queries the response was YES. [2023-08-25 20:53:22,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25449 conditions, 5640 events. 3255/5640 cut-off events. For 29706/29827 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 35055 event pairs, 586 based on Foata normal form. 47/5199 useless extension candidates. Maximal degree in co-relation 25402. Up to 4017 conditions per place. [2023-08-25 20:53:22,863 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 185 selfloop transitions, 55 changer transitions 3/257 dead transitions. [2023-08-25 20:53:22,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 257 transitions, 2631 flow [2023-08-25 20:53:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4149 transitions. [2023-08-25 20:53:22,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3821497651284885 [2023-08-25 20:53:22,869 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4149 transitions. [2023-08-25 20:53:22,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4149 transitions. [2023-08-25 20:53:22,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:22,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4149 transitions. [2023-08-25 20:53:22,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.1818181818182) internal successors, (4149), 11 states have internal predecessors, (4149), 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) [2023-08-25 20:53:22,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:22,882 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:22,882 INFO L175 Difference]: Start difference. First operand has 148 places, 197 transitions, 1864 flow. Second operand 11 states and 4149 transitions. [2023-08-25 20:53:22,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 257 transitions, 2631 flow [2023-08-25 20:53:23,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 257 transitions, 2425 flow, removed 77 selfloop flow, removed 6 redundant places. [2023-08-25 20:53:23,033 INFO L231 Difference]: Finished difference. Result has 154 places, 202 transitions, 1883 flow [2023-08-25 20:53:23,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1658, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1883, PETRI_PLACES=154, PETRI_TRANSITIONS=202} [2023-08-25 20:53:23,034 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 13 predicate places. [2023-08-25 20:53:23,034 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 202 transitions, 1883 flow [2023-08-25 20:53:23,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:23,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:23,035 INFO L208 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] [2023-08-25 20:53:23,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 20:53:23,035 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:23,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:23,036 INFO L85 PathProgramCache]: Analyzing trace with hash 33779861, now seen corresponding path program 13 times [2023-08-25 20:53:23,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:23,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973300937] [2023-08-25 20:53:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:23,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:23,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973300937] [2023-08-25 20:53:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973300937] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:23,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:23,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230631493] [2023-08-25 20:53:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:23,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:23,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:23,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:23,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:23,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 202 transitions, 1883 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:23,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:23,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:23,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:24,739 INFO L124 PetriNetUnfolderBase]: 3311/5756 cut-off events. [2023-08-25 20:53:24,739 INFO L125 PetriNetUnfolderBase]: For 29648/29769 co-relation queries the response was YES. [2023-08-25 20:53:24,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25815 conditions, 5756 events. 3311/5756 cut-off events. For 29648/29769 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 36016 event pairs, 640 based on Foata normal form. 47/5292 useless extension candidates. Maximal degree in co-relation 25765. Up to 4240 conditions per place. [2023-08-25 20:53:24,783 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 190 selfloop transitions, 51 changer transitions 4/259 dead transitions. [2023-08-25 20:53:24,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 259 transitions, 2650 flow [2023-08-25 20:53:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:24,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4143 transitions. [2023-08-25 20:53:24,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3815971262779773 [2023-08-25 20:53:24,788 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4143 transitions. [2023-08-25 20:53:24,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4143 transitions. [2023-08-25 20:53:24,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:24,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4143 transitions. [2023-08-25 20:53:24,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 376.6363636363636) internal successors, (4143), 11 states have internal predecessors, (4143), 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) [2023-08-25 20:53:24,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:24,800 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:24,800 INFO L175 Difference]: Start difference. First operand has 154 places, 202 transitions, 1883 flow. Second operand 11 states and 4143 transitions. [2023-08-25 20:53:24,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 259 transitions, 2650 flow [2023-08-25 20:53:24,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 259 transitions, 2498 flow, removed 45 selfloop flow, removed 7 redundant places. [2023-08-25 20:53:24,936 INFO L231 Difference]: Finished difference. Result has 159 places, 206 transitions, 1953 flow [2023-08-25 20:53:24,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1731, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1953, PETRI_PLACES=159, PETRI_TRANSITIONS=206} [2023-08-25 20:53:24,937 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 18 predicate places. [2023-08-25 20:53:24,937 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 206 transitions, 1953 flow [2023-08-25 20:53:24,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:24,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:24,937 INFO L208 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] [2023-08-25 20:53:24,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 20:53:24,938 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:24,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash 341406569, now seen corresponding path program 14 times [2023-08-25 20:53:24,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:24,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130740404] [2023-08-25 20:53:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:24,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:25,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:25,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130740404] [2023-08-25 20:53:25,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130740404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:25,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:25,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:25,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773499710] [2023-08-25 20:53:25,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:25,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:25,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:25,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:25,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:25,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:25,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 206 transitions, 1953 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:25,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:25,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:25,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:26,751 INFO L124 PetriNetUnfolderBase]: 3542/6121 cut-off events. [2023-08-25 20:53:26,751 INFO L125 PetriNetUnfolderBase]: For 36461/36583 co-relation queries the response was YES. [2023-08-25 20:53:26,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28121 conditions, 6121 events. 3542/6121 cut-off events. For 36461/36583 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 38495 event pairs, 622 based on Foata normal form. 48/5602 useless extension candidates. Maximal degree in co-relation 28068. Up to 4343 conditions per place. [2023-08-25 20:53:26,811 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 201 selfloop transitions, 62 changer transitions 3/280 dead transitions. [2023-08-25 20:53:26,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 280 transitions, 2904 flow [2023-08-25 20:53:26,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:26,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4154 transitions. [2023-08-25 20:53:26,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3826102975039145 [2023-08-25 20:53:26,817 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4154 transitions. [2023-08-25 20:53:26,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4154 transitions. [2023-08-25 20:53:26,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:26,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4154 transitions. [2023-08-25 20:53:26,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.6363636363636) internal successors, (4154), 11 states have internal predecessors, (4154), 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) [2023-08-25 20:53:26,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:26,831 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:26,831 INFO L175 Difference]: Start difference. First operand has 159 places, 206 transitions, 1953 flow. Second operand 11 states and 4154 transitions. [2023-08-25 20:53:26,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 280 transitions, 2904 flow [2023-08-25 20:53:26,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 280 transitions, 2744 flow, removed 51 selfloop flow, removed 8 redundant places. [2023-08-25 20:53:27,000 INFO L231 Difference]: Finished difference. Result has 165 places, 222 transitions, 2195 flow [2023-08-25 20:53:27,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1793, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2195, PETRI_PLACES=165, PETRI_TRANSITIONS=222} [2023-08-25 20:53:27,000 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 24 predicate places. [2023-08-25 20:53:27,001 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 222 transitions, 2195 flow [2023-08-25 20:53:27,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:27,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:27,001 INFO L208 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] [2023-08-25 20:53:27,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 20:53:27,001 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:27,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:27,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1065333949, now seen corresponding path program 15 times [2023-08-25 20:53:27,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:27,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896711979] [2023-08-25 20:53:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:27,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:27,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:27,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896711979] [2023-08-25 20:53:27,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896711979] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:27,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:27,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:27,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804685931] [2023-08-25 20:53:27,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:27,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:27,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:27,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:27,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:27,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:27,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 222 transitions, 2195 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:27,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:27,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:27,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:28,811 INFO L124 PetriNetUnfolderBase]: 3545/6167 cut-off events. [2023-08-25 20:53:28,811 INFO L125 PetriNetUnfolderBase]: For 37583/37688 co-relation queries the response was YES. [2023-08-25 20:53:28,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29170 conditions, 6167 events. 3545/6167 cut-off events. For 37583/37688 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 39199 event pairs, 691 based on Foata normal form. 47/5677 useless extension candidates. Maximal degree in co-relation 29113. Up to 4470 conditions per place. [2023-08-25 20:53:28,860 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 206 selfloop transitions, 58 changer transitions 3/281 dead transitions. [2023-08-25 20:53:28,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 281 transitions, 3036 flow [2023-08-25 20:53:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:28,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4148 transitions. [2023-08-25 20:53:28,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38205765865340335 [2023-08-25 20:53:28,864 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4148 transitions. [2023-08-25 20:53:28,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4148 transitions. [2023-08-25 20:53:28,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:28,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4148 transitions. [2023-08-25 20:53:28,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.09090909090907) internal successors, (4148), 11 states have internal predecessors, (4148), 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) [2023-08-25 20:53:28,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:28,876 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:28,876 INFO L175 Difference]: Start difference. First operand has 165 places, 222 transitions, 2195 flow. Second operand 11 states and 4148 transitions. [2023-08-25 20:53:28,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 281 transitions, 3036 flow [2023-08-25 20:53:29,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 281 transitions, 2808 flow, removed 88 selfloop flow, removed 5 redundant places. [2023-08-25 20:53:29,102 INFO L231 Difference]: Finished difference. Result has 172 places, 227 transitions, 2228 flow [2023-08-25 20:53:29,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=1967, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2228, PETRI_PLACES=172, PETRI_TRANSITIONS=227} [2023-08-25 20:53:29,103 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 31 predicate places. [2023-08-25 20:53:29,103 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 227 transitions, 2228 flow [2023-08-25 20:53:29,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:29,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:29,103 INFO L208 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] [2023-08-25 20:53:29,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 20:53:29,104 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:29,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:29,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1161606861, now seen corresponding path program 16 times [2023-08-25 20:53:29,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:29,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250017872] [2023-08-25 20:53:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:29,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:29,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:29,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:29,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250017872] [2023-08-25 20:53:29,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250017872] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:29,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:29,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:29,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285686254] [2023-08-25 20:53:29,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:29,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:29,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:29,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:29,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:29,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:29,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 227 transitions, 2228 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:29,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:29,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:29,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:31,002 INFO L124 PetriNetUnfolderBase]: 3716/6461 cut-off events. [2023-08-25 20:53:31,002 INFO L125 PetriNetUnfolderBase]: For 41584/41720 co-relation queries the response was YES. [2023-08-25 20:53:31,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30591 conditions, 6461 events. 3716/6461 cut-off events. For 41584/41720 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 41369 event pairs, 753 based on Foata normal form. 51/5916 useless extension candidates. Maximal degree in co-relation 30531. Up to 4688 conditions per place. [2023-08-25 20:53:31,042 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 220 selfloop transitions, 60 changer transitions 3/297 dead transitions. [2023-08-25 20:53:31,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 297 transitions, 3125 flow [2023-08-25 20:53:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:31,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:31,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4156 transitions. [2023-08-25 20:53:31,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3827945104540849 [2023-08-25 20:53:31,048 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4156 transitions. [2023-08-25 20:53:31,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4156 transitions. [2023-08-25 20:53:31,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:31,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4156 transitions. [2023-08-25 20:53:31,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.8181818181818) internal successors, (4156), 11 states have internal predecessors, (4156), 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) [2023-08-25 20:53:31,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:31,059 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:31,059 INFO L175 Difference]: Start difference. First operand has 172 places, 227 transitions, 2228 flow. Second operand 11 states and 4156 transitions. [2023-08-25 20:53:31,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 297 transitions, 3125 flow [2023-08-25 20:53:31,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 297 transitions, 2941 flow, removed 60 selfloop flow, removed 7 redundant places. [2023-08-25 20:53:31,199 INFO L231 Difference]: Finished difference. Result has 177 places, 236 transitions, 2337 flow [2023-08-25 20:53:31,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=2044, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2337, PETRI_PLACES=177, PETRI_TRANSITIONS=236} [2023-08-25 20:53:31,200 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 36 predicate places. [2023-08-25 20:53:31,200 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 236 transitions, 2337 flow [2023-08-25 20:53:31,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:31,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:31,200 INFO L208 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] [2023-08-25 20:53:31,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 20:53:31,201 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:31,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1691299, now seen corresponding path program 17 times [2023-08-25 20:53:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:31,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622038761] [2023-08-25 20:53:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:31,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:31,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:31,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622038761] [2023-08-25 20:53:31,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622038761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:31,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:31,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:31,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514839632] [2023-08-25 20:53:31,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:31,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:31,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:31,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:31,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 236 transitions, 2337 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:31,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:31,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:31,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:33,110 INFO L124 PetriNetUnfolderBase]: 3779/6634 cut-off events. [2023-08-25 20:53:33,111 INFO L125 PetriNetUnfolderBase]: For 45991/46112 co-relation queries the response was YES. [2023-08-25 20:53:33,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31894 conditions, 6634 events. 3779/6634 cut-off events. For 45991/46112 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 43321 event pairs, 811 based on Foata normal form. 47/6092 useless extension candidates. Maximal degree in co-relation 31831. Up to 4855 conditions per place. [2023-08-25 20:53:33,163 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 228 selfloop transitions, 57 changer transitions 3/302 dead transitions. [2023-08-25 20:53:33,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 302 transitions, 3254 flow [2023-08-25 20:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4153 transitions. [2023-08-25 20:53:33,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38251819102882934 [2023-08-25 20:53:33,166 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4153 transitions. [2023-08-25 20:53:33,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4153 transitions. [2023-08-25 20:53:33,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:33,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4153 transitions. [2023-08-25 20:53:33,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.54545454545456) internal successors, (4153), 11 states have internal predecessors, (4153), 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) [2023-08-25 20:53:33,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:33,176 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:33,176 INFO L175 Difference]: Start difference. First operand has 177 places, 236 transitions, 2337 flow. Second operand 11 states and 4153 transitions. [2023-08-25 20:53:33,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 302 transitions, 3254 flow [2023-08-25 20:53:33,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 302 transitions, 3072 flow, removed 38 selfloop flow, removed 8 redundant places. [2023-08-25 20:53:33,391 INFO L231 Difference]: Finished difference. Result has 181 places, 242 transitions, 2439 flow [2023-08-25 20:53:33,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=2155, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2439, PETRI_PLACES=181, PETRI_TRANSITIONS=242} [2023-08-25 20:53:33,391 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 40 predicate places. [2023-08-25 20:53:33,392 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 242 transitions, 2439 flow [2023-08-25 20:53:33,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:33,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:33,392 INFO L208 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] [2023-08-25 20:53:33,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 20:53:33,393 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:33,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:33,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2141274825, now seen corresponding path program 18 times [2023-08-25 20:53:33,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:33,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714332801] [2023-08-25 20:53:33,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:33,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:34,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:34,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714332801] [2023-08-25 20:53:34,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714332801] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:34,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:34,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:34,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889670556] [2023-08-25 20:53:34,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:34,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:34,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:34,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:34,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:34,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:34,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 242 transitions, 2439 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:34,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:34,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:34,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:35,622 INFO L124 PetriNetUnfolderBase]: 4306/7594 cut-off events. [2023-08-25 20:53:35,623 INFO L125 PetriNetUnfolderBase]: For 68775/68880 co-relation queries the response was YES. [2023-08-25 20:53:35,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37797 conditions, 7594 events. 4306/7594 cut-off events. For 68775/68880 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 51519 event pairs, 804 based on Foata normal form. 47/6997 useless extension candidates. Maximal degree in co-relation 37732. Up to 4661 conditions per place. [2023-08-25 20:53:35,692 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 230 selfloop transitions, 90 changer transitions 3/337 dead transitions. [2023-08-25 20:53:35,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 337 transitions, 3826 flow [2023-08-25 20:53:35,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:35,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4541 transitions. [2023-08-25 20:53:35,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3834008780817291 [2023-08-25 20:53:35,696 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4541 transitions. [2023-08-25 20:53:35,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4541 transitions. [2023-08-25 20:53:35,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:35,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4541 transitions. [2023-08-25 20:53:35,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 378.4166666666667) internal successors, (4541), 12 states have internal predecessors, (4541), 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) [2023-08-25 20:53:35,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:35,708 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:35,708 INFO L175 Difference]: Start difference. First operand has 181 places, 242 transitions, 2439 flow. Second operand 12 states and 4541 transitions. [2023-08-25 20:53:35,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 337 transitions, 3826 flow [2023-08-25 20:53:36,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 337 transitions, 3628 flow, removed 70 selfloop flow, removed 6 redundant places. [2023-08-25 20:53:36,185 INFO L231 Difference]: Finished difference. Result has 190 places, 261 transitions, 2963 flow [2023-08-25 20:53:36,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=2241, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2963, PETRI_PLACES=190, PETRI_TRANSITIONS=261} [2023-08-25 20:53:36,186 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 49 predicate places. [2023-08-25 20:53:36,186 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 261 transitions, 2963 flow [2023-08-25 20:53:36,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:36,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:36,186 INFO L208 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] [2023-08-25 20:53:36,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 20:53:36,187 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:36,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:36,187 INFO L85 PathProgramCache]: Analyzing trace with hash -547993741, now seen corresponding path program 19 times [2023-08-25 20:53:36,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:36,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785461290] [2023-08-25 20:53:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:36,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:36,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:36,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785461290] [2023-08-25 20:53:36,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785461290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:36,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:36,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:36,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67399312] [2023-08-25 20:53:36,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:36,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:36,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:36,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:36,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:36,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:36,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 261 transitions, 2963 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:36,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:36,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:36,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:38,353 INFO L124 PetriNetUnfolderBase]: 4461/7867 cut-off events. [2023-08-25 20:53:38,353 INFO L125 PetriNetUnfolderBase]: For 81317/81422 co-relation queries the response was YES. [2023-08-25 20:53:38,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41280 conditions, 7867 events. 4461/7867 cut-off events. For 81317/81422 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 53811 event pairs, 961 based on Foata normal form. 47/7265 useless extension candidates. Maximal degree in co-relation 41210. Up to 5282 conditions per place. [2023-08-25 20:53:38,427 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 238 selfloop transitions, 83 changer transitions 3/338 dead transitions. [2023-08-25 20:53:38,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 338 transitions, 4253 flow [2023-08-25 20:53:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4528 transitions. [2023-08-25 20:53:38,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38230327592029717 [2023-08-25 20:53:38,431 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4528 transitions. [2023-08-25 20:53:38,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4528 transitions. [2023-08-25 20:53:38,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:38,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4528 transitions. [2023-08-25 20:53:38,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 377.3333333333333) internal successors, (4528), 12 states have internal predecessors, (4528), 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) [2023-08-25 20:53:38,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:38,440 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:38,440 INFO L175 Difference]: Start difference. First operand has 190 places, 261 transitions, 2963 flow. Second operand 12 states and 4528 transitions. [2023-08-25 20:53:38,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 338 transitions, 4253 flow [2023-08-25 20:53:38,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 338 transitions, 3721 flow, removed 240 selfloop flow, removed 5 redundant places. [2023-08-25 20:53:38,815 INFO L231 Difference]: Finished difference. Result has 200 places, 276 transitions, 3075 flow [2023-08-25 20:53:38,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=2547, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3075, PETRI_PLACES=200, PETRI_TRANSITIONS=276} [2023-08-25 20:53:38,816 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 59 predicate places. [2023-08-25 20:53:38,816 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 276 transitions, 3075 flow [2023-08-25 20:53:38,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:38,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:38,817 INFO L208 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] [2023-08-25 20:53:38,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 20:53:38,817 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:38,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:38,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1925468803, now seen corresponding path program 20 times [2023-08-25 20:53:38,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:38,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875020306] [2023-08-25 20:53:38,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:39,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:39,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875020306] [2023-08-25 20:53:39,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875020306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:39,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:39,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:39,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391867426] [2023-08-25 20:53:39,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:39,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:39,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:39,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:39,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:39,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:39,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 276 transitions, 3075 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:39,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:39,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:39,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:41,255 INFO L124 PetriNetUnfolderBase]: 4659/8235 cut-off events. [2023-08-25 20:53:41,256 INFO L125 PetriNetUnfolderBase]: For 72468/72591 co-relation queries the response was YES. [2023-08-25 20:53:41,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41813 conditions, 8235 events. 4659/8235 cut-off events. For 72468/72591 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 56852 event pairs, 956 based on Foata normal form. 49/7591 useless extension candidates. Maximal degree in co-relation 41738. Up to 5380 conditions per place. [2023-08-25 20:53:41,346 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 243 selfloop transitions, 89 changer transitions 3/349 dead transitions. [2023-08-25 20:53:41,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 349 transitions, 4129 flow [2023-08-25 20:53:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4534 transitions. [2023-08-25 20:53:41,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3828098615332658 [2023-08-25 20:53:41,349 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4534 transitions. [2023-08-25 20:53:41,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4534 transitions. [2023-08-25 20:53:41,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:41,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4534 transitions. [2023-08-25 20:53:41,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 377.8333333333333) internal successors, (4534), 12 states have internal predecessors, (4534), 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) [2023-08-25 20:53:41,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:41,357 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:41,357 INFO L175 Difference]: Start difference. First operand has 200 places, 276 transitions, 3075 flow. Second operand 12 states and 4534 transitions. [2023-08-25 20:53:41,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 349 transitions, 4129 flow [2023-08-25 20:53:41,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 349 transitions, 3798 flow, removed 116 selfloop flow, removed 8 redundant places. [2023-08-25 20:53:41,881 INFO L231 Difference]: Finished difference. Result has 205 places, 283 transitions, 3110 flow [2023-08-25 20:53:41,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=2748, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3110, PETRI_PLACES=205, PETRI_TRANSITIONS=283} [2023-08-25 20:53:41,882 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 64 predicate places. [2023-08-25 20:53:41,882 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 283 transitions, 3110 flow [2023-08-25 20:53:41,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:41,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:41,882 INFO L208 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] [2023-08-25 20:53:41,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 20:53:41,883 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:41,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:41,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1328105507, now seen corresponding path program 21 times [2023-08-25 20:53:41,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:41,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23324149] [2023-08-25 20:53:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:41,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:42,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:42,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23324149] [2023-08-25 20:53:42,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23324149] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:42,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:42,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:42,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374170740] [2023-08-25 20:53:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:42,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:42,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:42,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:42,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:42,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:42,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 283 transitions, 3110 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:42,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:42,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:42,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:44,033 INFO L124 PetriNetUnfolderBase]: 4680/8259 cut-off events. [2023-08-25 20:53:44,034 INFO L125 PetriNetUnfolderBase]: For 64389/64500 co-relation queries the response was YES. [2023-08-25 20:53:44,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42033 conditions, 8259 events. 4680/8259 cut-off events. For 64389/64500 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 57381 event pairs, 976 based on Foata normal form. 51/7634 useless extension candidates. Maximal degree in co-relation 41957. Up to 5459 conditions per place. [2023-08-25 20:53:44,123 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 251 selfloop transitions, 91 changer transitions 3/359 dead transitions. [2023-08-25 20:53:44,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 359 transitions, 4208 flow [2023-08-25 20:53:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:53:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:53:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4533 transitions. [2023-08-25 20:53:44,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38272543059777103 [2023-08-25 20:53:44,127 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4533 transitions. [2023-08-25 20:53:44,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4533 transitions. [2023-08-25 20:53:44,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:44,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4533 transitions. [2023-08-25 20:53:44,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 377.75) internal successors, (4533), 12 states have internal predecessors, (4533), 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) [2023-08-25 20:53:44,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:44,135 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 987.0) internal successors, (12831), 13 states have internal predecessors, (12831), 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) [2023-08-25 20:53:44,135 INFO L175 Difference]: Start difference. First operand has 205 places, 283 transitions, 3110 flow. Second operand 12 states and 4533 transitions. [2023-08-25 20:53:44,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 359 transitions, 4208 flow [2023-08-25 20:53:44,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 359 transitions, 3949 flow, removed 49 selfloop flow, removed 10 redundant places. [2023-08-25 20:53:44,474 INFO L231 Difference]: Finished difference. Result has 209 places, 291 transitions, 3245 flow [2023-08-25 20:53:44,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=2859, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3245, PETRI_PLACES=209, PETRI_TRANSITIONS=291} [2023-08-25 20:53:44,475 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 68 predicate places. [2023-08-25 20:53:44,475 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 291 transitions, 3245 flow [2023-08-25 20:53:44,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:44,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:44,476 INFO L208 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] [2023-08-25 20:53:44,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 20:53:44,476 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:44,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:44,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1214803655, now seen corresponding path program 22 times [2023-08-25 20:53:44,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:44,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269537559] [2023-08-25 20:53:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:44,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:45,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:45,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269537559] [2023-08-25 20:53:45,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269537559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:45,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:45,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:45,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71833210] [2023-08-25 20:53:45,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:45,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:45,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:45,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:45,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 291 transitions, 3245 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:45,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:45,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:45,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:46,417 INFO L124 PetriNetUnfolderBase]: 4843/8613 cut-off events. [2023-08-25 20:53:46,417 INFO L125 PetriNetUnfolderBase]: For 77531/77725 co-relation queries the response was YES. [2023-08-25 20:53:46,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44340 conditions, 8613 events. 4843/8613 cut-off events. For 77531/77725 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 60270 event pairs, 1321 based on Foata normal form. 46/7885 useless extension candidates. Maximal degree in co-relation 44262. Up to 6575 conditions per place. [2023-08-25 20:53:46,510 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 281 selfloop transitions, 51 changer transitions 4/350 dead transitions. [2023-08-25 20:53:46,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 350 transitions, 4346 flow [2023-08-25 20:53:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4145 transitions. [2023-08-25 20:53:46,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3817813392281477 [2023-08-25 20:53:46,514 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4145 transitions. [2023-08-25 20:53:46,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4145 transitions. [2023-08-25 20:53:46,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:46,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4145 transitions. [2023-08-25 20:53:46,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 376.8181818181818) internal successors, (4145), 11 states have internal predecessors, (4145), 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) [2023-08-25 20:53:46,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:46,523 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:46,523 INFO L175 Difference]: Start difference. First operand has 209 places, 291 transitions, 3245 flow. Second operand 11 states and 4145 transitions. [2023-08-25 20:53:46,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 350 transitions, 4346 flow [2023-08-25 20:53:47,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 350 transitions, 4079 flow, removed 53 selfloop flow, removed 9 redundant places. [2023-08-25 20:53:47,109 INFO L231 Difference]: Finished difference. Result has 212 places, 297 transitions, 3311 flow [2023-08-25 20:53:47,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=2978, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3311, PETRI_PLACES=212, PETRI_TRANSITIONS=297} [2023-08-25 20:53:47,109 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 71 predicate places. [2023-08-25 20:53:47,109 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 297 transitions, 3311 flow [2023-08-25 20:53:47,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:47,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:47,110 INFO L208 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] [2023-08-25 20:53:47,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 20:53:47,110 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:47,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1500131169, now seen corresponding path program 23 times [2023-08-25 20:53:47,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:47,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151807413] [2023-08-25 20:53:47,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:47,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:47,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:47,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151807413] [2023-08-25 20:53:47,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151807413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:47,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:47,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:47,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90084600] [2023-08-25 20:53:47,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:47,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:47,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:47,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:47,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:47,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:47,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 297 transitions, 3311 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:47,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:47,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:47,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:49,249 INFO L124 PetriNetUnfolderBase]: 5022/8902 cut-off events. [2023-08-25 20:53:49,249 INFO L125 PetriNetUnfolderBase]: For 79329/79503 co-relation queries the response was YES. [2023-08-25 20:53:49,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45308 conditions, 8902 events. 5022/8902 cut-off events. For 79329/79503 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 62392 event pairs, 1316 based on Foata normal form. 45/8160 useless extension candidates. Maximal degree in co-relation 45229. Up to 6684 conditions per place. [2023-08-25 20:53:49,323 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 291 selfloop transitions, 56 changer transitions 3/364 dead transitions. [2023-08-25 20:53:49,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 364 transitions, 4471 flow [2023-08-25 20:53:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:49,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4153 transitions. [2023-08-25 20:53:49,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38251819102882934 [2023-08-25 20:53:49,326 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4153 transitions. [2023-08-25 20:53:49,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4153 transitions. [2023-08-25 20:53:49,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:49,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4153 transitions. [2023-08-25 20:53:49,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.54545454545456) internal successors, (4153), 11 states have internal predecessors, (4153), 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) [2023-08-25 20:53:49,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:49,336 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:49,337 INFO L175 Difference]: Start difference. First operand has 212 places, 297 transitions, 3311 flow. Second operand 11 states and 4153 transitions. [2023-08-25 20:53:49,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 364 transitions, 4471 flow [2023-08-25 20:53:49,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 364 transitions, 4208 flow, removed 103 selfloop flow, removed 7 redundant places. [2023-08-25 20:53:49,581 INFO L231 Difference]: Finished difference. Result has 218 places, 308 transitions, 3465 flow [2023-08-25 20:53:49,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3048, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3465, PETRI_PLACES=218, PETRI_TRANSITIONS=308} [2023-08-25 20:53:49,582 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 77 predicate places. [2023-08-25 20:53:49,582 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 308 transitions, 3465 flow [2023-08-25 20:53:49,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:49,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:49,583 INFO L208 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] [2023-08-25 20:53:49,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-25 20:53:49,583 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:49,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:49,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1493830703, now seen corresponding path program 24 times [2023-08-25 20:53:49,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:49,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249033175] [2023-08-25 20:53:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:49,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:50,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:50,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249033175] [2023-08-25 20:53:50,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249033175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:50,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:50,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303664990] [2023-08-25 20:53:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:50,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:50,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:50,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:50,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:50,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 308 transitions, 3465 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:50,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:50,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:50,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:51,629 INFO L124 PetriNetUnfolderBase]: 5080/9025 cut-off events. [2023-08-25 20:53:51,629 INFO L125 PetriNetUnfolderBase]: For 94553/94743 co-relation queries the response was YES. [2023-08-25 20:53:51,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47063 conditions, 9025 events. 5080/9025 cut-off events. For 94553/94743 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 63442 event pairs, 1414 based on Foata normal form. 45/8273 useless extension candidates. Maximal degree in co-relation 46981. Up to 6908 conditions per place. [2023-08-25 20:53:51,711 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 296 selfloop transitions, 52 changer transitions 4/366 dead transitions. [2023-08-25 20:53:51,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 366 transitions, 4545 flow [2023-08-25 20:53:51,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4147 transitions. [2023-08-25 20:53:51,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3819655521783181 [2023-08-25 20:53:51,715 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4147 transitions. [2023-08-25 20:53:51,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4147 transitions. [2023-08-25 20:53:51,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:51,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4147 transitions. [2023-08-25 20:53:51,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.0) internal successors, (4147), 11 states have internal predecessors, (4147), 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) [2023-08-25 20:53:51,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:51,726 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:51,726 INFO L175 Difference]: Start difference. First operand has 218 places, 308 transitions, 3465 flow. Second operand 11 states and 4147 transitions. [2023-08-25 20:53:51,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 366 transitions, 4545 flow [2023-08-25 20:53:52,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 366 transitions, 4275 flow, removed 108 selfloop flow, removed 6 redundant places. [2023-08-25 20:53:52,155 INFO L231 Difference]: Finished difference. Result has 224 places, 312 transitions, 3507 flow [2023-08-25 20:53:52,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3195, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3507, PETRI_PLACES=224, PETRI_TRANSITIONS=312} [2023-08-25 20:53:52,155 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 83 predicate places. [2023-08-25 20:53:52,155 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 312 transitions, 3507 flow [2023-08-25 20:53:52,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:52,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:52,156 INFO L208 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] [2023-08-25 20:53:52,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-25 20:53:52,156 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:52,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:52,156 INFO L85 PathProgramCache]: Analyzing trace with hash 82352849, now seen corresponding path program 25 times [2023-08-25 20:53:52,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:52,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474127332] [2023-08-25 20:53:52,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:52,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:52,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:52,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474127332] [2023-08-25 20:53:52,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474127332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:52,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:52,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:52,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074994214] [2023-08-25 20:53:52,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:52,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:52,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:52,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:52,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:52,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:52,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 312 transitions, 3507 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:52,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:52,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:52,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:54,157 INFO L124 PetriNetUnfolderBase]: 5257/9293 cut-off events. [2023-08-25 20:53:54,157 INFO L125 PetriNetUnfolderBase]: For 100306/100588 co-relation queries the response was YES. [2023-08-25 20:53:54,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48654 conditions, 9293 events. 5257/9293 cut-off events. For 100306/100588 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 65264 event pairs, 1341 based on Foata normal form. 47/8479 useless extension candidates. Maximal degree in co-relation 48569. Up to 7025 conditions per place. [2023-08-25 20:53:54,246 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 304 selfloop transitions, 59 changer transitions 3/380 dead transitions. [2023-08-25 20:53:54,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 380 transitions, 4732 flow [2023-08-25 20:53:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:54,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4152 transitions. [2023-08-25 20:53:54,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3824260845537441 [2023-08-25 20:53:54,250 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4152 transitions. [2023-08-25 20:53:54,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4152 transitions. [2023-08-25 20:53:54,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:54,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4152 transitions. [2023-08-25 20:53:54,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.45454545454544) internal successors, (4152), 11 states have internal predecessors, (4152), 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) [2023-08-25 20:53:54,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:54,261 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:54,261 INFO L175 Difference]: Start difference. First operand has 224 places, 312 transitions, 3507 flow. Second operand 11 states and 4152 transitions. [2023-08-25 20:53:54,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 380 transitions, 4732 flow [2023-08-25 20:53:54,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 380 transitions, 4482 flow, removed 95 selfloop flow, removed 8 redundant places. [2023-08-25 20:53:54,942 INFO L231 Difference]: Finished difference. Result has 230 places, 325 transitions, 3723 flow [2023-08-25 20:53:54,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3257, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3723, PETRI_PLACES=230, PETRI_TRANSITIONS=325} [2023-08-25 20:53:54,943 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 89 predicate places. [2023-08-25 20:53:54,943 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 325 transitions, 3723 flow [2023-08-25 20:53:54,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:54,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:54,944 INFO L208 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] [2023-08-25 20:53:54,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-25 20:53:54,944 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:54,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:54,944 INFO L85 PathProgramCache]: Analyzing trace with hash 246304909, now seen corresponding path program 26 times [2023-08-25 20:53:54,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:54,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377846881] [2023-08-25 20:53:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:54,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:55,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:55,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377846881] [2023-08-25 20:53:55,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377846881] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:55,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:55,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:55,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701490105] [2023-08-25 20:53:55,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:55,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:55,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:55,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:55,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:55,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:55,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 325 transitions, 3723 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:55,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:55,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:55,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:57,313 INFO L124 PetriNetUnfolderBase]: 5235/9300 cut-off events. [2023-08-25 20:53:57,314 INFO L125 PetriNetUnfolderBase]: For 97631/97810 co-relation queries the response was YES. [2023-08-25 20:53:57,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49193 conditions, 9300 events. 5235/9300 cut-off events. For 97631/97810 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 66003 event pairs, 1356 based on Foata normal form. 47/8534 useless extension candidates. Maximal degree in co-relation 49104. Up to 7125 conditions per place. [2023-08-25 20:53:57,411 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 315 selfloop transitions, 53 changer transitions 4/386 dead transitions. [2023-08-25 20:53:57,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 386 transitions, 4847 flow [2023-08-25 20:53:57,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:53:57,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:53:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4152 transitions. [2023-08-25 20:53:57,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3824260845537441 [2023-08-25 20:53:57,416 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4152 transitions. [2023-08-25 20:53:57,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4152 transitions. [2023-08-25 20:53:57,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:57,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4152 transitions. [2023-08-25 20:53:57,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.45454545454544) internal successors, (4152), 11 states have internal predecessors, (4152), 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) [2023-08-25 20:53:57,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:57,426 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:53:57,426 INFO L175 Difference]: Start difference. First operand has 230 places, 325 transitions, 3723 flow. Second operand 11 states and 4152 transitions. [2023-08-25 20:53:57,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 386 transitions, 4847 flow [2023-08-25 20:53:57,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 386 transitions, 4565 flow, removed 114 selfloop flow, removed 5 redundant places. [2023-08-25 20:53:57,962 INFO L231 Difference]: Finished difference. Result has 237 places, 328 transitions, 3704 flow [2023-08-25 20:53:57,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3441, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3704, PETRI_PLACES=237, PETRI_TRANSITIONS=328} [2023-08-25 20:53:57,963 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 96 predicate places. [2023-08-25 20:53:57,964 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 328 transitions, 3704 flow [2023-08-25 20:53:57,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:57,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:57,964 INFO L208 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] [2023-08-25 20:53:57,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-25 20:53:57,965 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:53:57,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1746950833, now seen corresponding path program 27 times [2023-08-25 20:53:57,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:57,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570699973] [2023-08-25 20:53:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:57,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:53:58,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:58,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570699973] [2023-08-25 20:53:58,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570699973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:53:58,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:53:58,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:53:58,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743605788] [2023-08-25 20:53:58,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:53:58,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:53:58,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:53:58,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:53:58,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:53:58,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 328 transitions, 3704 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:53:58,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:58,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:53:58,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:00,193 INFO L124 PetriNetUnfolderBase]: 5365/9547 cut-off events. [2023-08-25 20:54:00,193 INFO L125 PetriNetUnfolderBase]: For 114200/114391 co-relation queries the response was YES. [2023-08-25 20:54:00,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50986 conditions, 9547 events. 5365/9547 cut-off events. For 114200/114391 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 68079 event pairs, 1426 based on Foata normal form. 46/8742 useless extension candidates. Maximal degree in co-relation 50894. Up to 7143 conditions per place. [2023-08-25 20:54:00,310 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 317 selfloop transitions, 61 changer transitions 3/395 dead transitions. [2023-08-25 20:54:00,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 395 transitions, 4860 flow [2023-08-25 20:54:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4159 transitions. [2023-08-25 20:54:00,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830708298793405 [2023-08-25 20:54:00,314 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4159 transitions. [2023-08-25 20:54:00,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4159 transitions. [2023-08-25 20:54:00,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:00,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4159 transitions. [2023-08-25 20:54:00,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 378.09090909090907) internal successors, (4159), 11 states have internal predecessors, (4159), 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) [2023-08-25 20:54:00,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:00,321 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:00,321 INFO L175 Difference]: Start difference. First operand has 237 places, 328 transitions, 3704 flow. Second operand 11 states and 4159 transitions. [2023-08-25 20:54:00,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 395 transitions, 4860 flow [2023-08-25 20:54:00,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 395 transitions, 4659 flow, removed 70 selfloop flow, removed 7 redundant places. [2023-08-25 20:54:00,913 INFO L231 Difference]: Finished difference. Result has 242 places, 335 transitions, 3843 flow [2023-08-25 20:54:00,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3503, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3843, PETRI_PLACES=242, PETRI_TRANSITIONS=335} [2023-08-25 20:54:00,913 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 101 predicate places. [2023-08-25 20:54:00,913 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 335 transitions, 3843 flow [2023-08-25 20:54:00,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:00,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:00,914 INFO L208 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] [2023-08-25 20:54:00,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-25 20:54:00,914 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:00,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1990342205, now seen corresponding path program 28 times [2023-08-25 20:54:00,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:00,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501656902] [2023-08-25 20:54:00,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:00,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:01,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:01,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501656902] [2023-08-25 20:54:01,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501656902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:01,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:01,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:01,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121498776] [2023-08-25 20:54:01,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:01,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:01,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:01,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:01,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:01,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:01,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 335 transitions, 3843 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:01,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:01,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:01,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:03,333 INFO L124 PetriNetUnfolderBase]: 5522/9832 cut-off events. [2023-08-25 20:54:03,333 INFO L125 PetriNetUnfolderBase]: For 126177/126460 co-relation queries the response was YES. [2023-08-25 20:54:03,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53456 conditions, 9832 events. 5522/9832 cut-off events. For 126177/126460 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 70705 event pairs, 1418 based on Foata normal form. 48/8986 useless extension candidates. Maximal degree in co-relation 53361. Up to 7352 conditions per place. [2023-08-25 20:54:03,447 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 322 selfloop transitions, 63 changer transitions 3/402 dead transitions. [2023-08-25 20:54:03,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 402 transitions, 5037 flow [2023-08-25 20:54:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:03,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:03,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4158 transitions. [2023-08-25 20:54:03,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3829787234042553 [2023-08-25 20:54:03,450 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4158 transitions. [2023-08-25 20:54:03,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4158 transitions. [2023-08-25 20:54:03,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:03,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4158 transitions. [2023-08-25 20:54:03,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 378.0) internal successors, (4158), 11 states have internal predecessors, (4158), 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) [2023-08-25 20:54:03,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:03,457 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:03,457 INFO L175 Difference]: Start difference. First operand has 242 places, 335 transitions, 3843 flow. Second operand 11 states and 4158 transitions. [2023-08-25 20:54:03,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 402 transitions, 5037 flow [2023-08-25 20:54:03,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 402 transitions, 4735 flow, removed 94 selfloop flow, removed 8 redundant places. [2023-08-25 20:54:04,001 INFO L231 Difference]: Finished difference. Result has 246 places, 343 transitions, 3917 flow [2023-08-25 20:54:04,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3569, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3917, PETRI_PLACES=246, PETRI_TRANSITIONS=343} [2023-08-25 20:54:04,002 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 105 predicate places. [2023-08-25 20:54:04,002 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 343 transitions, 3917 flow [2023-08-25 20:54:04,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:04,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:04,003 INFO L208 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] [2023-08-25 20:54:04,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-25 20:54:04,003 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:04,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1010119129, now seen corresponding path program 29 times [2023-08-25 20:54:04,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:04,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403346673] [2023-08-25 20:54:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:04,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:04,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:04,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403346673] [2023-08-25 20:54:04,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403346673] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:04,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:04,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:04,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903783761] [2023-08-25 20:54:04,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:04,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:04,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:04,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:04,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:04,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 343 transitions, 3917 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:04,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:04,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:04,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:06,249 INFO L124 PetriNetUnfolderBase]: 5581/9923 cut-off events. [2023-08-25 20:54:06,250 INFO L125 PetriNetUnfolderBase]: For 121779/122050 co-relation queries the response was YES. [2023-08-25 20:54:06,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53598 conditions, 9923 events. 5581/9923 cut-off events. For 121779/122050 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 71485 event pairs, 1485 based on Foata normal form. 54/9063 useless extension candidates. Maximal degree in co-relation 53501. Up to 7646 conditions per place. [2023-08-25 20:54:06,371 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 335 selfloop transitions, 55 changer transitions 4/408 dead transitions. [2023-08-25 20:54:06,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 408 transitions, 5180 flow [2023-08-25 20:54:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4149 transitions. [2023-08-25 20:54:06,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3821497651284885 [2023-08-25 20:54:06,379 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4149 transitions. [2023-08-25 20:54:06,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4149 transitions. [2023-08-25 20:54:06,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:06,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4149 transitions. [2023-08-25 20:54:06,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.1818181818182) internal successors, (4149), 11 states have internal predecessors, (4149), 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) [2023-08-25 20:54:06,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:06,387 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:06,387 INFO L175 Difference]: Start difference. First operand has 246 places, 343 transitions, 3917 flow. Second operand 11 states and 4149 transitions. [2023-08-25 20:54:06,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 408 transitions, 5180 flow [2023-08-25 20:54:07,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 408 transitions, 4920 flow, removed 73 selfloop flow, removed 8 redundant places. [2023-08-25 20:54:07,217 INFO L231 Difference]: Finished difference. Result has 252 places, 352 transitions, 4045 flow [2023-08-25 20:54:07,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3657, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4045, PETRI_PLACES=252, PETRI_TRANSITIONS=352} [2023-08-25 20:54:07,218 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 111 predicate places. [2023-08-25 20:54:07,218 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 352 transitions, 4045 flow [2023-08-25 20:54:07,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:07,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:07,219 INFO L208 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] [2023-08-25 20:54:07,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-25 20:54:07,219 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:07,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:07,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1689635087, now seen corresponding path program 30 times [2023-08-25 20:54:07,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:07,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277247241] [2023-08-25 20:54:07,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:07,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:07,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277247241] [2023-08-25 20:54:07,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277247241] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:07,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:07,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:07,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377605475] [2023-08-25 20:54:07,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:07,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:07,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:07,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:07,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:07,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:07,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 352 transitions, 4045 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:07,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:07,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:07,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:09,626 INFO L124 PetriNetUnfolderBase]: 5659/10085 cut-off events. [2023-08-25 20:54:09,626 INFO L125 PetriNetUnfolderBase]: For 139273/139556 co-relation queries the response was YES. [2023-08-25 20:54:09,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54539 conditions, 10085 events. 5659/10085 cut-off events. For 139273/139556 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 72998 event pairs, 1524 based on Foata normal form. 52/9191 useless extension candidates. Maximal degree in co-relation 54438. Up to 7686 conditions per place. [2023-08-25 20:54:09,741 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 344 selfloop transitions, 58 changer transitions 3/419 dead transitions. [2023-08-25 20:54:09,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 419 transitions, 5251 flow [2023-08-25 20:54:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4157 transitions. [2023-08-25 20:54:09,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38288661692917014 [2023-08-25 20:54:09,744 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4157 transitions. [2023-08-25 20:54:09,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4157 transitions. [2023-08-25 20:54:09,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:09,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4157 transitions. [2023-08-25 20:54:09,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.90909090909093) internal successors, (4157), 11 states have internal predecessors, (4157), 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) [2023-08-25 20:54:09,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:09,751 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:09,751 INFO L175 Difference]: Start difference. First operand has 252 places, 352 transitions, 4045 flow. Second operand 11 states and 4157 transitions. [2023-08-25 20:54:09,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 419 transitions, 5251 flow [2023-08-25 20:54:10,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 419 transitions, 5013 flow, removed 92 selfloop flow, removed 5 redundant places. [2023-08-25 20:54:10,405 INFO L231 Difference]: Finished difference. Result has 259 places, 358 transitions, 4141 flow [2023-08-25 20:54:10,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3807, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4141, PETRI_PLACES=259, PETRI_TRANSITIONS=358} [2023-08-25 20:54:10,406 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 118 predicate places. [2023-08-25 20:54:10,406 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 358 transitions, 4141 flow [2023-08-25 20:54:10,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:10,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:10,407 INFO L208 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] [2023-08-25 20:54:10,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-25 20:54:10,407 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:10,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:10,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1208433375, now seen corresponding path program 31 times [2023-08-25 20:54:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:10,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78350528] [2023-08-25 20:54:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:10,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:11,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:11,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78350528] [2023-08-25 20:54:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78350528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:11,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58169909] [2023-08-25 20:54:11,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:11,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:11,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:11,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:11,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:11,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:11,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 358 transitions, 4141 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:11,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:11,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:11,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:12,761 INFO L124 PetriNetUnfolderBase]: 5773/10281 cut-off events. [2023-08-25 20:54:12,761 INFO L125 PetriNetUnfolderBase]: For 134612/134922 co-relation queries the response was YES. [2023-08-25 20:54:12,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55591 conditions, 10281 events. 5773/10281 cut-off events. For 134612/134922 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 74761 event pairs, 1518 based on Foata normal form. 53/9375 useless extension candidates. Maximal degree in co-relation 55487. Up to 7835 conditions per place. [2023-08-25 20:54:12,898 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 348 selfloop transitions, 61 changer transitions 3/426 dead transitions. [2023-08-25 20:54:12,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 426 transitions, 5347 flow [2023-08-25 20:54:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4157 transitions. [2023-08-25 20:54:12,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38288661692917014 [2023-08-25 20:54:12,901 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4157 transitions. [2023-08-25 20:54:12,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4157 transitions. [2023-08-25 20:54:12,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:12,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4157 transitions. [2023-08-25 20:54:12,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.90909090909093) internal successors, (4157), 11 states have internal predecessors, (4157), 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) [2023-08-25 20:54:12,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:12,909 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:12,909 INFO L175 Difference]: Start difference. First operand has 259 places, 358 transitions, 4141 flow. Second operand 11 states and 4157 transitions. [2023-08-25 20:54:12,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 426 transitions, 5347 flow [2023-08-25 20:54:13,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 426 transitions, 5071 flow, removed 86 selfloop flow, removed 7 redundant places. [2023-08-25 20:54:13,786 INFO L231 Difference]: Finished difference. Result has 264 places, 366 transitions, 4211 flow [2023-08-25 20:54:13,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3865, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4211, PETRI_PLACES=264, PETRI_TRANSITIONS=366} [2023-08-25 20:54:13,787 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 123 predicate places. [2023-08-25 20:54:13,787 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 366 transitions, 4211 flow [2023-08-25 20:54:13,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:13,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:13,787 INFO L208 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] [2023-08-25 20:54:13,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-25 20:54:13,788 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:13,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:13,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1908481571, now seen corresponding path program 32 times [2023-08-25 20:54:13,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:13,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854890871] [2023-08-25 20:54:13,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:13,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:14,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:14,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854890871] [2023-08-25 20:54:14,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854890871] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:14,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:14,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:14,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267402616] [2023-08-25 20:54:14,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:14,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:14,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:14,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:14,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 366 transitions, 4211 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:14,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:14,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:14,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:16,152 INFO L124 PetriNetUnfolderBase]: 5894/10480 cut-off events. [2023-08-25 20:54:16,152 INFO L125 PetriNetUnfolderBase]: For 154412/154724 co-relation queries the response was YES. [2023-08-25 20:54:16,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57074 conditions, 10480 events. 5894/10480 cut-off events. For 154412/154724 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 76219 event pairs, 1603 based on Foata normal form. 53/9539 useless extension candidates. Maximal degree in co-relation 56968. Up to 8044 conditions per place. [2023-08-25 20:54:16,285 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 361 selfloop transitions, 57 changer transitions 3/435 dead transitions. [2023-08-25 20:54:16,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 435 transitions, 5442 flow [2023-08-25 20:54:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4158 transitions. [2023-08-25 20:54:16,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3829787234042553 [2023-08-25 20:54:16,288 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4158 transitions. [2023-08-25 20:54:16,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4158 transitions. [2023-08-25 20:54:16,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:16,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4158 transitions. [2023-08-25 20:54:16,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 378.0) internal successors, (4158), 11 states have internal predecessors, (4158), 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) [2023-08-25 20:54:16,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:16,295 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:16,295 INFO L175 Difference]: Start difference. First operand has 264 places, 366 transitions, 4211 flow. Second operand 11 states and 4158 transitions. [2023-08-25 20:54:16,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 435 transitions, 5442 flow [2023-08-25 20:54:16,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 435 transitions, 5190 flow, removed 72 selfloop flow, removed 8 redundant places. [2023-08-25 20:54:16,999 INFO L231 Difference]: Finished difference. Result has 268 places, 372 transitions, 4283 flow [2023-08-25 20:54:16,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=3959, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4283, PETRI_PLACES=268, PETRI_TRANSITIONS=372} [2023-08-25 20:54:17,001 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 127 predicate places. [2023-08-25 20:54:17,002 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 372 transitions, 4283 flow [2023-08-25 20:54:17,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:17,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:17,003 INFO L208 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] [2023-08-25 20:54:17,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-25 20:54:17,003 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:17,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1437291165, now seen corresponding path program 33 times [2023-08-25 20:54:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:17,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929848579] [2023-08-25 20:54:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:17,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:17,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:17,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929848579] [2023-08-25 20:54:17,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929848579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:17,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:17,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:17,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763261345] [2023-08-25 20:54:17,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:17,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:17,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:17,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:17,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:17,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 372 transitions, 4283 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:17,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:17,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:17,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:19,368 INFO L124 PetriNetUnfolderBase]: 5841/10528 cut-off events. [2023-08-25 20:54:19,368 INFO L125 PetriNetUnfolderBase]: For 149873/150106 co-relation queries the response was YES. [2023-08-25 20:54:19,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56596 conditions, 10528 events. 5841/10528 cut-off events. For 149873/150106 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 77807 event pairs, 1682 based on Foata normal form. 67/9655 useless extension candidates. Maximal degree in co-relation 56488. Up to 8086 conditions per place. [2023-08-25 20:54:19,490 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 359 selfloop transitions, 60 changer transitions 4/437 dead transitions. [2023-08-25 20:54:19,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 437 transitions, 5699 flow [2023-08-25 20:54:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4150 transitions. [2023-08-25 20:54:19,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38224187160357376 [2023-08-25 20:54:19,494 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4150 transitions. [2023-08-25 20:54:19,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4150 transitions. [2023-08-25 20:54:19,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:19,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4150 transitions. [2023-08-25 20:54:19,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.27272727272725) internal successors, (4150), 11 states have internal predecessors, (4150), 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) [2023-08-25 20:54:19,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:19,503 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:19,503 INFO L175 Difference]: Start difference. First operand has 268 places, 372 transitions, 4283 flow. Second operand 11 states and 4150 transitions. [2023-08-25 20:54:19,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 437 transitions, 5699 flow [2023-08-25 20:54:20,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 437 transitions, 5428 flow, removed 82 selfloop flow, removed 7 redundant places. [2023-08-25 20:54:20,400 INFO L231 Difference]: Finished difference. Result has 274 places, 380 transitions, 4471 flow [2023-08-25 20:54:20,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4018, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4471, PETRI_PLACES=274, PETRI_TRANSITIONS=380} [2023-08-25 20:54:20,400 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 133 predicate places. [2023-08-25 20:54:20,401 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 380 transitions, 4471 flow [2023-08-25 20:54:20,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:20,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:20,401 INFO L208 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] [2023-08-25 20:54:20,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-25 20:54:20,402 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:20,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:20,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1067666559, now seen corresponding path program 34 times [2023-08-25 20:54:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:20,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595189454] [2023-08-25 20:54:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:20,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:21,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:21,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595189454] [2023-08-25 20:54:21,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595189454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:21,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:21,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:21,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992223178] [2023-08-25 20:54:21,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:21,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:21,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:21,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:21,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:21,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:21,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 380 transitions, 4471 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:21,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:21,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:21,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:22,797 INFO L124 PetriNetUnfolderBase]: 5907/10617 cut-off events. [2023-08-25 20:54:22,798 INFO L125 PetriNetUnfolderBase]: For 186830/187078 co-relation queries the response was YES. [2023-08-25 20:54:22,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58455 conditions, 10617 events. 5907/10617 cut-off events. For 186830/187078 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 78200 event pairs, 1745 based on Foata normal form. 66/9711 useless extension candidates. Maximal degree in co-relation 58344. Up to 8229 conditions per place. [2023-08-25 20:54:22,957 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 364 selfloop transitions, 56 changer transitions 4/438 dead transitions. [2023-08-25 20:54:22,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 438 transitions, 5921 flow [2023-08-25 20:54:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:22,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4143 transitions. [2023-08-25 20:54:22,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3815971262779773 [2023-08-25 20:54:22,960 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4143 transitions. [2023-08-25 20:54:22,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4143 transitions. [2023-08-25 20:54:22,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:22,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4143 transitions. [2023-08-25 20:54:22,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 376.6363636363636) internal successors, (4143), 11 states have internal predecessors, (4143), 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) [2023-08-25 20:54:22,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:22,969 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:22,969 INFO L175 Difference]: Start difference. First operand has 274 places, 380 transitions, 4471 flow. Second operand 11 states and 4143 transitions. [2023-08-25 20:54:22,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 438 transitions, 5921 flow [2023-08-25 20:54:24,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 438 transitions, 5641 flow, removed 107 selfloop flow, removed 6 redundant places. [2023-08-25 20:54:24,473 INFO L231 Difference]: Finished difference. Result has 280 places, 386 transitions, 4674 flow [2023-08-25 20:54:24,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4191, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4674, PETRI_PLACES=280, PETRI_TRANSITIONS=386} [2023-08-25 20:54:24,474 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 139 predicate places. [2023-08-25 20:54:24,474 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 386 transitions, 4674 flow [2023-08-25 20:54:24,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:24,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:24,475 INFO L208 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] [2023-08-25 20:54:24,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-25 20:54:24,475 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:24,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash 928371743, now seen corresponding path program 35 times [2023-08-25 20:54:24,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:24,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901958204] [2023-08-25 20:54:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:24,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:24,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:24,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901958204] [2023-08-25 20:54:24,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901958204] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:24,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:24,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:24,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891955464] [2023-08-25 20:54:24,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:24,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:24,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:24,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:24,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:24,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:24,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 386 transitions, 4674 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:24,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:24,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:24,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:27,313 INFO L124 PetriNetUnfolderBase]: 6067/10873 cut-off events. [2023-08-25 20:54:27,314 INFO L125 PetriNetUnfolderBase]: For 205464/205708 co-relation queries the response was YES. [2023-08-25 20:54:27,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60620 conditions, 10873 events. 6067/10873 cut-off events. For 205464/205708 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 79966 event pairs, 1776 based on Foata normal form. 65/9948 useless extension candidates. Maximal degree in co-relation 60507. Up to 8306 conditions per place. [2023-08-25 20:54:27,439 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 374 selfloop transitions, 61 changer transitions 3/452 dead transitions. [2023-08-25 20:54:27,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 452 transitions, 6153 flow [2023-08-25 20:54:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4151 transitions. [2023-08-25 20:54:27,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38233397807865893 [2023-08-25 20:54:27,442 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4151 transitions. [2023-08-25 20:54:27,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4151 transitions. [2023-08-25 20:54:27,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:27,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4151 transitions. [2023-08-25 20:54:27,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.3636363636364) internal successors, (4151), 11 states have internal predecessors, (4151), 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) [2023-08-25 20:54:27,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:27,450 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:27,450 INFO L175 Difference]: Start difference. First operand has 280 places, 386 transitions, 4674 flow. Second operand 11 states and 4151 transitions. [2023-08-25 20:54:27,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 452 transitions, 6153 flow [2023-08-25 20:54:28,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 452 transitions, 5743 flow, removed 173 selfloop flow, removed 7 redundant places. [2023-08-25 20:54:28,455 INFO L231 Difference]: Finished difference. Result has 286 places, 397 transitions, 4831 flow [2023-08-25 20:54:28,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4264, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4831, PETRI_PLACES=286, PETRI_TRANSITIONS=397} [2023-08-25 20:54:28,456 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 145 predicate places. [2023-08-25 20:54:28,456 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 397 transitions, 4831 flow [2023-08-25 20:54:28,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:28,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:28,457 INFO L208 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] [2023-08-25 20:54:28,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-25 20:54:28,457 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:28,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash -551905697, now seen corresponding path program 36 times [2023-08-25 20:54:28,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:28,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915740576] [2023-08-25 20:54:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:28,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:29,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:29,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915740576] [2023-08-25 20:54:29,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915740576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:29,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:29,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:29,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999571054] [2023-08-25 20:54:29,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:29,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:29,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:29,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:29,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:29,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 397 transitions, 4831 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:29,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:29,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:29,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:31,380 INFO L124 PetriNetUnfolderBase]: 6102/10967 cut-off events. [2023-08-25 20:54:31,381 INFO L125 PetriNetUnfolderBase]: For 218791/219035 co-relation queries the response was YES. [2023-08-25 20:54:31,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61965 conditions, 10967 events. 6102/10967 cut-off events. For 218791/219035 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 81177 event pairs, 1838 based on Foata normal form. 65/10051 useless extension candidates. Maximal degree in co-relation 61849. Up to 8504 conditions per place. [2023-08-25 20:54:31,498 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 379 selfloop transitions, 57 changer transitions 4/454 dead transitions. [2023-08-25 20:54:31,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 454 transitions, 6206 flow [2023-08-25 20:54:31,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:31,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4145 transitions. [2023-08-25 20:54:31,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3817813392281477 [2023-08-25 20:54:31,502 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4145 transitions. [2023-08-25 20:54:31,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4145 transitions. [2023-08-25 20:54:31,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:31,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4145 transitions. [2023-08-25 20:54:31,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 376.8181818181818) internal successors, (4145), 11 states have internal predecessors, (4145), 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) [2023-08-25 20:54:31,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:31,511 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:31,511 INFO L175 Difference]: Start difference. First operand has 286 places, 397 transitions, 4831 flow. Second operand 11 states and 4145 transitions. [2023-08-25 20:54:31,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 454 transitions, 6206 flow [2023-08-25 20:54:32,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 454 transitions, 5789 flow, removed 178 selfloop flow, removed 6 redundant places. [2023-08-25 20:54:32,956 INFO L231 Difference]: Finished difference. Result has 292 places, 401 transitions, 4852 flow [2023-08-25 20:54:32,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4414, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4852, PETRI_PLACES=292, PETRI_TRANSITIONS=401} [2023-08-25 20:54:32,957 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 151 predicate places. [2023-08-25 20:54:32,957 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 401 transitions, 4852 flow [2023-08-25 20:54:32,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:32,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:32,957 INFO L208 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] [2023-08-25 20:54:32,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-25 20:54:32,957 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:32,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:32,958 INFO L85 PathProgramCache]: Analyzing trace with hash -927785761, now seen corresponding path program 37 times [2023-08-25 20:54:32,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:32,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339006301] [2023-08-25 20:54:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:32,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:33,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:33,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339006301] [2023-08-25 20:54:33,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339006301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:33,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:33,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:33,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455950151] [2023-08-25 20:54:33,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:33,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:33,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:33,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:33,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:33,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:33,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 401 transitions, 4852 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:33,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:33,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:33,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:35,893 INFO L124 PetriNetUnfolderBase]: 6159/11059 cut-off events. [2023-08-25 20:54:35,893 INFO L125 PetriNetUnfolderBase]: For 228235/228479 co-relation queries the response was YES. [2023-08-25 20:54:36,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62523 conditions, 11059 events. 6159/11059 cut-off events. For 228235/228479 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 81839 event pairs, 1768 based on Foata normal form. 65/10114 useless extension candidates. Maximal degree in co-relation 62404. Up to 8466 conditions per place. [2023-08-25 20:54:36,051 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 385 selfloop transitions, 64 changer transitions 3/466 dead transitions. [2023-08-25 20:54:36,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 466 transitions, 6358 flow [2023-08-25 20:54:36,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:36,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4150 transitions. [2023-08-25 20:54:36,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38224187160357376 [2023-08-25 20:54:36,188 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4150 transitions. [2023-08-25 20:54:36,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4150 transitions. [2023-08-25 20:54:36,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:36,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4150 transitions. [2023-08-25 20:54:36,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.27272727272725) internal successors, (4150), 11 states have internal predecessors, (4150), 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) [2023-08-25 20:54:36,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:36,196 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:36,196 INFO L175 Difference]: Start difference. First operand has 292 places, 401 transitions, 4852 flow. Second operand 11 states and 4150 transitions. [2023-08-25 20:54:36,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 466 transitions, 6358 flow [2023-08-25 20:54:37,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 466 transitions, 5973 flow, removed 159 selfloop flow, removed 8 redundant places. [2023-08-25 20:54:37,903 INFO L231 Difference]: Finished difference. Result has 298 places, 412 transitions, 5045 flow [2023-08-25 20:54:37,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4473, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5045, PETRI_PLACES=298, PETRI_TRANSITIONS=412} [2023-08-25 20:54:37,903 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 157 predicate places. [2023-08-25 20:54:37,904 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 412 transitions, 5045 flow [2023-08-25 20:54:37,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:37,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:37,904 INFO L208 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] [2023-08-25 20:54:37,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-25 20:54:37,905 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:37,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:37,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1576998459, now seen corresponding path program 38 times [2023-08-25 20:54:37,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:37,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478542582] [2023-08-25 20:54:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:37,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478542582] [2023-08-25 20:54:38,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478542582] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:38,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:38,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:38,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575556167] [2023-08-25 20:54:38,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:38,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:38,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:38,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:38,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:38,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:38,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 412 transitions, 5045 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:38,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:38,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:38,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:40,892 INFO L124 PetriNetUnfolderBase]: 6238/11238 cut-off events. [2023-08-25 20:54:40,892 INFO L125 PetriNetUnfolderBase]: For 230227/230472 co-relation queries the response was YES. [2023-08-25 20:54:40,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63879 conditions, 11238 events. 6238/11238 cut-off events. For 230227/230472 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 83793 event pairs, 1857 based on Foata normal form. 66/10277 useless extension candidates. Maximal degree in co-relation 63756. Up to 8520 conditions per place. [2023-08-25 20:54:41,028 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 395 selfloop transitions, 66 changer transitions 3/478 dead transitions. [2023-08-25 20:54:41,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 478 transitions, 6446 flow [2023-08-25 20:54:41,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:41,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:41,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4157 transitions. [2023-08-25 20:54:41,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38288661692917014 [2023-08-25 20:54:41,032 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4157 transitions. [2023-08-25 20:54:41,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4157 transitions. [2023-08-25 20:54:41,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:41,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4157 transitions. [2023-08-25 20:54:41,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.90909090909093) internal successors, (4157), 11 states have internal predecessors, (4157), 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) [2023-08-25 20:54:41,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:41,041 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:41,041 INFO L175 Difference]: Start difference. First operand has 298 places, 412 transitions, 5045 flow. Second operand 11 states and 4157 transitions. [2023-08-25 20:54:41,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 478 transitions, 6446 flow [2023-08-25 20:54:42,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 478 transitions, 6027 flow, removed 179 selfloop flow, removed 5 redundant places. [2023-08-25 20:54:42,393 INFO L231 Difference]: Finished difference. Result has 305 places, 419 transitions, 5052 flow [2023-08-25 20:54:42,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4626, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5052, PETRI_PLACES=305, PETRI_TRANSITIONS=419} [2023-08-25 20:54:42,394 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 164 predicate places. [2023-08-25 20:54:42,394 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 419 transitions, 5052 flow [2023-08-25 20:54:42,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:42,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:42,395 INFO L208 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] [2023-08-25 20:54:42,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-25 20:54:42,395 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:42,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash 438160707, now seen corresponding path program 39 times [2023-08-25 20:54:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:42,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104319856] [2023-08-25 20:54:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:42,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:43,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:43,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104319856] [2023-08-25 20:54:43,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104319856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:43,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:43,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:43,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615082849] [2023-08-25 20:54:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:43,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:43,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:43,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:43,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 419 transitions, 5052 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:43,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:43,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:43,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:45,506 INFO L124 PetriNetUnfolderBase]: 6374/11486 cut-off events. [2023-08-25 20:54:45,506 INFO L125 PetriNetUnfolderBase]: For 244389/244634 co-relation queries the response was YES. [2023-08-25 20:54:45,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65837 conditions, 11486 events. 6374/11486 cut-off events. For 244389/244634 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 86014 event pairs, 1827 based on Foata normal form. 66/10497 useless extension candidates. Maximal degree in co-relation 65711. Up to 8705 conditions per place. [2023-08-25 20:54:45,636 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 400 selfloop transitions, 68 changer transitions 3/485 dead transitions. [2023-08-25 20:54:45,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 485 transitions, 6499 flow [2023-08-25 20:54:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:45,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4156 transitions. [2023-08-25 20:54:45,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3827945104540849 [2023-08-25 20:54:45,639 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4156 transitions. [2023-08-25 20:54:45,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4156 transitions. [2023-08-25 20:54:45,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:45,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4156 transitions. [2023-08-25 20:54:45,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.8181818181818) internal successors, (4156), 11 states have internal predecessors, (4156), 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) [2023-08-25 20:54:45,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:45,646 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:45,646 INFO L175 Difference]: Start difference. First operand has 305 places, 419 transitions, 5052 flow. Second operand 11 states and 4156 transitions. [2023-08-25 20:54:45,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 485 transitions, 6499 flow [2023-08-25 20:54:47,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 485 transitions, 6099 flow, removed 138 selfloop flow, removed 8 redundant places. [2023-08-25 20:54:47,378 INFO L231 Difference]: Finished difference. Result has 309 places, 427 transitions, 5122 flow [2023-08-25 20:54:47,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4692, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5122, PETRI_PLACES=309, PETRI_TRANSITIONS=427} [2023-08-25 20:54:47,379 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 168 predicate places. [2023-08-25 20:54:47,379 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 427 transitions, 5122 flow [2023-08-25 20:54:47,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:47,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:47,380 INFO L208 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] [2023-08-25 20:54:47,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-25 20:54:47,380 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:47,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash 667594509, now seen corresponding path program 40 times [2023-08-25 20:54:47,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:47,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929402369] [2023-08-25 20:54:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:47,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:48,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:48,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929402369] [2023-08-25 20:54:48,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929402369] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:48,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:48,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084420689] [2023-08-25 20:54:48,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:48,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:48,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:48,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:48,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:48,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 427 transitions, 5122 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:48,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:48,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:48,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:50,281 INFO L124 PetriNetUnfolderBase]: 6477/11624 cut-off events. [2023-08-25 20:54:50,281 INFO L125 PetriNetUnfolderBase]: For 247125/247397 co-relation queries the response was YES. [2023-08-25 20:54:50,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66048 conditions, 11624 events. 6477/11624 cut-off events. For 247125/247397 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 86915 event pairs, 1982 based on Foata normal form. 69/10620 useless extension candidates. Maximal degree in co-relation 65920. Up to 8960 conditions per place. [2023-08-25 20:54:50,474 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 414 selfloop transitions, 64 changer transitions 3/495 dead transitions. [2023-08-25 20:54:50,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 495 transitions, 6552 flow [2023-08-25 20:54:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:50,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4158 transitions. [2023-08-25 20:54:50,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3829787234042553 [2023-08-25 20:54:50,477 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4158 transitions. [2023-08-25 20:54:50,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4158 transitions. [2023-08-25 20:54:50,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:50,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4158 transitions. [2023-08-25 20:54:50,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 378.0) internal successors, (4158), 11 states have internal predecessors, (4158), 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) [2023-08-25 20:54:50,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:50,484 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:50,484 INFO L175 Difference]: Start difference. First operand has 309 places, 427 transitions, 5122 flow. Second operand 11 states and 4158 transitions. [2023-08-25 20:54:50,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 495 transitions, 6552 flow [2023-08-25 20:54:52,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 495 transitions, 6204 flow, removed 112 selfloop flow, removed 8 redundant places. [2023-08-25 20:54:52,261 INFO L231 Difference]: Finished difference. Result has 313 places, 434 transitions, 5192 flow [2023-08-25 20:54:52,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4774, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5192, PETRI_PLACES=313, PETRI_TRANSITIONS=434} [2023-08-25 20:54:52,262 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 172 predicate places. [2023-08-25 20:54:52,262 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 434 transitions, 5192 flow [2023-08-25 20:54:52,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:52,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:52,263 INFO L208 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] [2023-08-25 20:54:52,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-25 20:54:52,263 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:52,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash -176829297, now seen corresponding path program 41 times [2023-08-25 20:54:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:52,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202638454] [2023-08-25 20:54:52,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:52,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:53,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:53,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202638454] [2023-08-25 20:54:53,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202638454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:53,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:53,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:53,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992844281] [2023-08-25 20:54:53,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:53,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:53,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:53,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:53,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:53,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:53,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 434 transitions, 5192 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:53,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:53,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:53,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:55,639 INFO L124 PetriNetUnfolderBase]: 6451/11661 cut-off events. [2023-08-25 20:54:55,639 INFO L125 PetriNetUnfolderBase]: For 250894/251138 co-relation queries the response was YES. [2023-08-25 20:54:55,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65580 conditions, 11661 events. 6451/11661 cut-off events. For 250894/251138 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 88011 event pairs, 1955 based on Foata normal form. 65/10649 useless extension candidates. Maximal degree in co-relation 65450. Up to 8967 conditions per place. [2023-08-25 20:54:55,777 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 418 selfloop transitions, 63 changer transitions 3/498 dead transitions. [2023-08-25 20:54:55,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 498 transitions, 6577 flow [2023-08-25 20:54:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:54:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:54:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4155 transitions. [2023-08-25 20:54:55,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38270240397899974 [2023-08-25 20:54:55,780 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4155 transitions. [2023-08-25 20:54:55,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4155 transitions. [2023-08-25 20:54:55,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:55,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4155 transitions. [2023-08-25 20:54:55,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.72727272727275) internal successors, (4155), 11 states have internal predecessors, (4155), 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) [2023-08-25 20:54:55,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:55,787 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:54:55,787 INFO L175 Difference]: Start difference. First operand has 313 places, 434 transitions, 5192 flow. Second operand 11 states and 4155 transitions. [2023-08-25 20:54:55,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 498 transitions, 6577 flow [2023-08-25 20:54:57,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 498 transitions, 6229 flow, removed 116 selfloop flow, removed 8 redundant places. [2023-08-25 20:54:57,853 INFO L231 Difference]: Finished difference. Result has 317 places, 438 transitions, 5202 flow [2023-08-25 20:54:57,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4844, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5202, PETRI_PLACES=317, PETRI_TRANSITIONS=438} [2023-08-25 20:54:57,854 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 176 predicate places. [2023-08-25 20:54:57,854 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 438 transitions, 5202 flow [2023-08-25 20:54:57,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:57,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:57,855 INFO L208 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] [2023-08-25 20:54:57,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-25 20:54:57,855 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:54:57,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:57,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1792887455, now seen corresponding path program 42 times [2023-08-25 20:54:57,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:57,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457610006] [2023-08-25 20:54:57,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:57,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:54:58,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:58,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457610006] [2023-08-25 20:54:58,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457610006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:54:58,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:54:58,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:54:58,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372298765] [2023-08-25 20:54:58,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:54:58,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:54:58,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:58,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:54:58,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:54:58,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:54:58,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 438 transitions, 5202 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:54:58,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:58,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:54:58,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:55:00,937 INFO L124 PetriNetUnfolderBase]: 6617/11923 cut-off events. [2023-08-25 20:55:00,937 INFO L125 PetriNetUnfolderBase]: For 258814/259191 co-relation queries the response was YES. [2023-08-25 20:55:01,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66544 conditions, 11923 events. 6617/11923 cut-off events. For 258814/259191 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 90067 event pairs, 2002 based on Foata normal form. 70/10850 useless extension candidates. Maximal degree in co-relation 66412. Up to 9176 conditions per place. [2023-08-25 20:55:01,085 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 422 selfloop transitions, 66 changer transitions 3/505 dead transitions. [2023-08-25 20:55:01,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 505 transitions, 6637 flow [2023-08-25 20:55:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:55:01,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:55:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4155 transitions. [2023-08-25 20:55:01,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38270240397899974 [2023-08-25 20:55:01,088 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4155 transitions. [2023-08-25 20:55:01,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4155 transitions. [2023-08-25 20:55:01,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:55:01,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4155 transitions. [2023-08-25 20:55:01,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.72727272727275) internal successors, (4155), 11 states have internal predecessors, (4155), 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) [2023-08-25 20:55:01,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:55:01,095 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:55:01,095 INFO L175 Difference]: Start difference. First operand has 317 places, 438 transitions, 5202 flow. Second operand 11 states and 4155 transitions. [2023-08-25 20:55:01,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 505 transitions, 6637 flow [2023-08-25 20:55:03,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 505 transitions, 6283 flow, removed 120 selfloop flow, removed 7 redundant places. [2023-08-25 20:55:03,117 INFO L231 Difference]: Finished difference. Result has 322 places, 446 transitions, 5272 flow [2023-08-25 20:55:03,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4850, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5272, PETRI_PLACES=322, PETRI_TRANSITIONS=446} [2023-08-25 20:55:03,117 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 181 predicate places. [2023-08-25 20:55:03,118 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 446 transitions, 5272 flow [2023-08-25 20:55:03,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:55:03,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:55:03,118 INFO L208 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] [2023-08-25 20:55:03,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-25 20:55:03,118 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:55:03,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:55:03,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1897152803, now seen corresponding path program 43 times [2023-08-25 20:55:03,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:55:03,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447603545] [2023-08-25 20:55:03,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:55:03,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:55:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:55:03,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 20:55:03,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:55:03,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447603545] [2023-08-25 20:55:03,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447603545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:55:03,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:55:03,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 20:55:03,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63074354] [2023-08-25 20:55:03,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:55:03,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:55:03,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:55:03,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:55:03,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:55:03,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 987 [2023-08-25 20:55:03,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 446 transitions, 5272 flow. Second operand has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:55:03,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:55:03,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 987 [2023-08-25 20:55:03,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:55:06,329 INFO L124 PetriNetUnfolderBase]: 6597/11893 cut-off events. [2023-08-25 20:55:06,329 INFO L125 PetriNetUnfolderBase]: For 267318/267587 co-relation queries the response was YES. [2023-08-25 20:55:06,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66328 conditions, 11893 events. 6597/11893 cut-off events. For 267318/267587 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 89833 event pairs, 2064 based on Foata normal form. 66/10828 useless extension candidates. Maximal degree in co-relation 66194. Up to 9198 conditions per place. [2023-08-25 20:55:06,486 INFO L140 encePairwiseOnDemand]: 974/987 looper letters, 433 selfloop transitions, 62 changer transitions 3/512 dead transitions. [2023-08-25 20:55:06,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 512 transitions, 6686 flow [2023-08-25 20:55:06,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:55:06,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:55:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4156 transitions. [2023-08-25 20:55:06,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3827945104540849 [2023-08-25 20:55:06,489 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4156 transitions. [2023-08-25 20:55:06,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4156 transitions. [2023-08-25 20:55:06,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:55:06,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4156 transitions. [2023-08-25 20:55:06,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 377.8181818181818) internal successors, (4156), 11 states have internal predecessors, (4156), 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) [2023-08-25 20:55:06,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:55:06,497 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 987.0) internal successors, (11844), 12 states have internal predecessors, (11844), 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) [2023-08-25 20:55:06,497 INFO L175 Difference]: Start difference. First operand has 322 places, 446 transitions, 5272 flow. Second operand 11 states and 4156 transitions. [2023-08-25 20:55:06,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 512 transitions, 6686 flow [2023-08-25 20:55:08,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 512 transitions, 6356 flow, removed 106 selfloop flow, removed 8 redundant places. [2023-08-25 20:55:08,630 INFO L231 Difference]: Finished difference. Result has 326 places, 450 transitions, 5298 flow [2023-08-25 20:55:08,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4942, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5298, PETRI_PLACES=326, PETRI_TRANSITIONS=450} [2023-08-25 20:55:08,630 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 185 predicate places. [2023-08-25 20:55:08,631 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 450 transitions, 5298 flow [2023-08-25 20:55:08,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 368.6363636363636) internal successors, (4055), 11 states have internal predecessors, (4055), 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) [2023-08-25 20:55:08,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:55:08,631 INFO L208 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] [2023-08-25 20:55:08,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-25 20:55:08,632 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:55:08,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:55:08,632 INFO L85 PathProgramCache]: Analyzing trace with hash 113990401, now seen corresponding path program 1 times [2023-08-25 20:55:08,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:55:08,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812372595] [2023-08-25 20:55:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:55:08,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:55:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:55:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:55:08,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812372595] [2023-08-25 20:55:08,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812372595] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:55:08,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069890488] [2023-08-25 20:55:08,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:55:08,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:55:08,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:55:08,719 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) [2023-08-25 20:55:08,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 20:55:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:55:09,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 20:55:09,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:55:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:09,199 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:55:09,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:09,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069890488] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:55:09,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:55:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-08-25 20:55:09,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204382184] [2023-08-25 20:55:09,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:55:09,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:55:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:55:09,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:55:09,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:55:09,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 987 [2023-08-25 20:55:09,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 450 transitions, 5298 flow. Second operand has 11 states, 11 states have (on average 356.6363636363636) internal successors, (3923), 11 states have internal predecessors, (3923), 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) [2023-08-25 20:55:09,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:55:09,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 987 [2023-08-25 20:55:09,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:55:13,992 INFO L124 PetriNetUnfolderBase]: 12807/23329 cut-off events. [2023-08-25 20:55:13,992 INFO L125 PetriNetUnfolderBase]: For 475719/475863 co-relation queries the response was YES. [2023-08-25 20:55:14,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127585 conditions, 23329 events. 12807/23329 cut-off events. For 475719/475863 co-relation queries the response was YES. Maximal size of possible extension queue 1126. Compared 199099 event pairs, 5771 based on Foata normal form. 150/21253 useless extension candidates. Maximal degree in co-relation 127449. Up to 9911 conditions per place. [2023-08-25 20:55:14,531 INFO L140 encePairwiseOnDemand]: 981/987 looper letters, 845 selfloop transitions, 8 changer transitions 18/887 dead transitions. [2023-08-25 20:55:14,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 887 transitions, 12259 flow [2023-08-25 20:55:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 20:55:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 20:55:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2539 transitions. [2023-08-25 20:55:14,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3674916775220727 [2023-08-25 20:55:14,534 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2539 transitions. [2023-08-25 20:55:14,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2539 transitions. [2023-08-25 20:55:14,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:55:14,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2539 transitions. [2023-08-25 20:55:14,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 362.7142857142857) internal successors, (2539), 7 states have internal predecessors, (2539), 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) [2023-08-25 20:55:14,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 987.0) internal successors, (7896), 8 states have internal predecessors, (7896), 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) [2023-08-25 20:55:14,539 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 987.0) internal successors, (7896), 8 states have internal predecessors, (7896), 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) [2023-08-25 20:55:14,539 INFO L175 Difference]: Start difference. First operand has 326 places, 450 transitions, 5298 flow. Second operand 7 states and 2539 transitions. [2023-08-25 20:55:14,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 887 transitions, 12259 flow [2023-08-25 20:55:19,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 887 transitions, 11575 flow, removed 232 selfloop flow, removed 7 redundant places. [2023-08-25 20:55:19,363 INFO L231 Difference]: Finished difference. Result has 329 places, 456 transitions, 5052 flow [2023-08-25 20:55:19,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=4955, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5052, PETRI_PLACES=329, PETRI_TRANSITIONS=456} [2023-08-25 20:55:19,364 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 188 predicate places. [2023-08-25 20:55:19,364 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 456 transitions, 5052 flow [2023-08-25 20:55:19,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 356.6363636363636) internal successors, (3923), 11 states have internal predecessors, (3923), 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) [2023-08-25 20:55:19,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:55:19,365 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:55:19,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 20:55:19,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:55:19,572 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:55:19,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:55:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash -482197555, now seen corresponding path program 1 times [2023-08-25 20:55:19,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:55:19,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246089711] [2023-08-25 20:55:19,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:55:19,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:55:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:55:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:19,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:55:19,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246089711] [2023-08-25 20:55:19,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246089711] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:55:19,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614366092] [2023-08-25 20:55:19,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:55:19,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:55:19,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:55:19,695 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) [2023-08-25 20:55:19,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 20:55:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:55:20,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 20:55:20,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:55:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:20,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:55:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:20,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614366092] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:55:20,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:55:20,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2023-08-25 20:55:20,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462520260] [2023-08-25 20:55:20,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:55:20,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 20:55:20,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:55:20,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 20:55:20,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-08-25 20:55:20,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 987 [2023-08-25 20:55:20,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 456 transitions, 5052 flow. Second operand has 13 states, 13 states have (on average 353.61538461538464) internal successors, (4597), 13 states have internal predecessors, (4597), 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) [2023-08-25 20:55:20,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:55:20,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 987 [2023-08-25 20:55:20,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:55:29,476 INFO L124 PetriNetUnfolderBase]: 24180/44197 cut-off events. [2023-08-25 20:55:29,477 INFO L125 PetriNetUnfolderBase]: For 788654/789249 co-relation queries the response was YES. [2023-08-25 20:55:30,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227996 conditions, 44197 events. 24180/44197 cut-off events. For 788654/789249 co-relation queries the response was YES. Maximal size of possible extension queue 2235. Compared 419118 event pairs, 6442 based on Foata normal form. 165/40254 useless extension candidates. Maximal degree in co-relation 227856. Up to 17183 conditions per place. [2023-08-25 20:55:30,940 INFO L140 encePairwiseOnDemand]: 981/987 looper letters, 864 selfloop transitions, 33 changer transitions 46/959 dead transitions. [2023-08-25 20:55:30,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 959 transitions, 12919 flow [2023-08-25 20:55:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 20:55:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 20:55:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2908 transitions. [2023-08-25 20:55:30,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36828774062816616 [2023-08-25 20:55:30,943 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2908 transitions. [2023-08-25 20:55:30,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2908 transitions. [2023-08-25 20:55:30,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:55:30,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2908 transitions. [2023-08-25 20:55:30,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 363.5) internal successors, (2908), 8 states have internal predecessors, (2908), 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) [2023-08-25 20:55:30,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 987.0) internal successors, (8883), 9 states have internal predecessors, (8883), 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) [2023-08-25 20:55:30,949 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 987.0) internal successors, (8883), 9 states have internal predecessors, (8883), 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) [2023-08-25 20:55:30,949 INFO L175 Difference]: Start difference. First operand has 329 places, 456 transitions, 5052 flow. Second operand 8 states and 2908 transitions. [2023-08-25 20:55:30,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 959 transitions, 12919 flow [2023-08-25 20:55:38,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 959 transitions, 12883 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-08-25 20:55:38,877 INFO L231 Difference]: Finished difference. Result has 336 places, 484 transitions, 5544 flow [2023-08-25 20:55:38,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=5035, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5544, PETRI_PLACES=336, PETRI_TRANSITIONS=484} [2023-08-25 20:55:38,878 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 195 predicate places. [2023-08-25 20:55:38,878 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 484 transitions, 5544 flow [2023-08-25 20:55:38,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 353.61538461538464) internal successors, (4597), 13 states have internal predecessors, (4597), 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) [2023-08-25 20:55:38,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:55:38,878 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:55:38,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 20:55:39,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-08-25 20:55:39,079 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:55:39,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:55:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1998686694, now seen corresponding path program 2 times [2023-08-25 20:55:39,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:55:39,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739997822] [2023-08-25 20:55:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:55:39,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:55:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:55:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:39,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:55:39,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739997822] [2023-08-25 20:55:39,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739997822] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:55:39,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097808989] [2023-08-25 20:55:39,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 20:55:39,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:55:39,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:55:39,814 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) [2023-08-25 20:55:39,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 20:55:40,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 20:55:40,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:55:40,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-25 20:55:40,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:55:41,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:55:41,080 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-08-25 20:55:41,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:55:41,156 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-08-25 20:55:41,257 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 20:55:41,258 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2023-08-25 20:55:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:41,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:55:43,529 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:55:43,529 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 151 [2023-08-25 20:55:43,537 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2023-08-25 20:55:43,541 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2023-08-25 20:55:43,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:55:43,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097808989] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:55:43,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:55:43,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2023-08-25 20:55:43,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332403834] [2023-08-25 20:55:43,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:55:43,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 20:55:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:55:43,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 20:55:43,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=589, Unknown=1, NotChecked=0, Total=702 [2023-08-25 20:55:43,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 987 [2023-08-25 20:55:43,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 484 transitions, 5544 flow. Second operand has 27 states, 27 states have (on average 316.0740740740741) internal successors, (8534), 27 states have internal predecessors, (8534), 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) [2023-08-25 20:55:43,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:55:43,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 987 [2023-08-25 20:55:43,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:55:46,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 20:55:48,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 20:55:50,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 20:56:19,247 INFO L124 PetriNetUnfolderBase]: 74219/116321 cut-off events. [2023-08-25 20:56:19,248 INFO L125 PetriNetUnfolderBase]: For 4667043/4667778 co-relation queries the response was YES. [2023-08-25 20:56:22,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682032 conditions, 116321 events. 74219/116321 cut-off events. For 4667043/4667778 co-relation queries the response was YES. Maximal size of possible extension queue 3842. Compared 994449 event pairs, 25488 based on Foata normal form. 1076/106549 useless extension candidates. Maximal degree in co-relation 681890. Up to 49419 conditions per place. [2023-08-25 20:56:23,030 INFO L140 encePairwiseOnDemand]: 975/987 looper letters, 1195 selfloop transitions, 325 changer transitions 0/1528 dead transitions. [2023-08-25 20:56:23,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1528 transitions, 19990 flow [2023-08-25 20:56:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-25 20:56:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-25 20:56:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 8855 transitions. [2023-08-25 20:56:23,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33228263724717627 [2023-08-25 20:56:23,035 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 8855 transitions. [2023-08-25 20:56:23,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 8855 transitions. [2023-08-25 20:56:23,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:56:23,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 8855 transitions. [2023-08-25 20:56:23,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 327.962962962963) internal successors, (8855), 27 states have internal predecessors, (8855), 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) [2023-08-25 20:56:23,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 987.0) internal successors, (27636), 28 states have internal predecessors, (27636), 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) [2023-08-25 20:56:23,054 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 987.0) internal successors, (27636), 28 states have internal predecessors, (27636), 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) [2023-08-25 20:56:23,054 INFO L175 Difference]: Start difference. First operand has 336 places, 484 transitions, 5544 flow. Second operand 27 states and 8855 transitions. [2023-08-25 20:56:23,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1528 transitions, 19990 flow [2023-08-25 20:57:02,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 1528 transitions, 19930 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 20:57:02,934 INFO L231 Difference]: Finished difference. Result has 375 places, 680 transitions, 8759 flow [2023-08-25 20:57:02,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=5528, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=8759, PETRI_PLACES=375, PETRI_TRANSITIONS=680} [2023-08-25 20:57:02,935 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 234 predicate places. [2023-08-25 20:57:02,935 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 680 transitions, 8759 flow [2023-08-25 20:57:02,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 316.0740740740741) internal successors, (8534), 27 states have internal predecessors, (8534), 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) [2023-08-25 20:57:02,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:57:02,936 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:57:02,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 20:57:03,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:57:03,137 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:57:03,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:57:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash 131462542, now seen corresponding path program 3 times [2023-08-25 20:57:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:57:03,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605765430] [2023-08-25 20:57:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:57:03,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:57:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:57:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:57:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:57:04,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605765430] [2023-08-25 20:57:04,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605765430] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:57:04,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999845691] [2023-08-25 20:57:04,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 20:57:04,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:57:04,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:57:04,197 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) [2023-08-25 20:57:04,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 20:57:05,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 20:57:05,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:57:05,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 20 conjunts are in the unsatisfiable core [2023-08-25 20:57:05,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:57:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 20:57:05,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 20:57:05,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999845691] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:57:05,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 20:57:05,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2023-08-25 20:57:05,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752077501] [2023-08-25 20:57:05,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:57:05,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 20:57:05,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:57:05,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 20:57:05,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-08-25 20:57:05,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 987 [2023-08-25 20:57:05,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 680 transitions, 8759 flow. Second operand has 5 states, 5 states have (on average 379.2) internal successors, (1896), 5 states have internal predecessors, (1896), 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) [2023-08-25 20:57:05,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:57:05,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 987 [2023-08-25 20:57:05,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:57:31,060 INFO L124 PetriNetUnfolderBase]: 56283/97316 cut-off events. [2023-08-25 20:57:31,061 INFO L125 PetriNetUnfolderBase]: For 5782358/5783030 co-relation queries the response was YES. [2023-08-25 20:57:34,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668456 conditions, 97316 events. 56283/97316 cut-off events. For 5782358/5783030 co-relation queries the response was YES. Maximal size of possible extension queue 4343. Compared 948245 event pairs, 20860 based on Foata normal form. 956/95005 useless extension candidates. Maximal degree in co-relation 668299. Up to 70160 conditions per place. [2023-08-25 20:57:34,496 INFO L140 encePairwiseOnDemand]: 980/987 looper letters, 723 selfloop transitions, 39 changer transitions 0/778 dead transitions. [2023-08-25 20:57:34,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 778 transitions, 11731 flow [2023-08-25 20:57:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 20:57:34,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 20:57:34,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1943 transitions. [2023-08-25 20:57:34,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39371833839918946 [2023-08-25 20:57:34,498 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1943 transitions. [2023-08-25 20:57:34,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1943 transitions. [2023-08-25 20:57:34,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:57:34,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1943 transitions. [2023-08-25 20:57:34,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 388.6) internal successors, (1943), 5 states have internal predecessors, (1943), 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) [2023-08-25 20:57:34,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 987.0) internal successors, (5922), 6 states have internal predecessors, (5922), 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) [2023-08-25 20:57:34,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 987.0) internal successors, (5922), 6 states have internal predecessors, (5922), 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) [2023-08-25 20:57:34,501 INFO L175 Difference]: Start difference. First operand has 375 places, 680 transitions, 8759 flow. Second operand 5 states and 1943 transitions. [2023-08-25 20:57:34,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 778 transitions, 11731 flow [2023-08-25 20:58:35,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 778 transitions, 11565 flow, removed 78 selfloop flow, removed 4 redundant places. [2023-08-25 20:58:35,609 INFO L231 Difference]: Finished difference. Result has 377 places, 697 transitions, 8871 flow [2023-08-25 20:58:35,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=8600, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8871, PETRI_PLACES=377, PETRI_TRANSITIONS=697} [2023-08-25 20:58:35,609 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 236 predicate places. [2023-08-25 20:58:35,610 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 697 transitions, 8871 flow [2023-08-25 20:58:35,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 379.2) internal successors, (1896), 5 states have internal predecessors, (1896), 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) [2023-08-25 20:58:35,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:58:35,610 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:58:35,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 20:58:35,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:58:35,813 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 20:58:35,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:58:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash -717421610, now seen corresponding path program 4 times [2023-08-25 20:58:35,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:58:35,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291796975] [2023-08-25 20:58:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:58:35,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:58:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:58:36,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:58:36,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:58:36,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291796975] [2023-08-25 20:58:36,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291796975] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:58:36,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655433068] [2023-08-25 20:58:36,583 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 20:58:36,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:58:36,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:58:36,585 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) [2023-08-25 20:58:36,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 20:58:39,349 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 20:58:39,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:58:39,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 20:58:39,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:58:39,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:58:39,466 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-08-25 20:58:39,510 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 20:58:39,511 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2023-08-25 20:58:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 20:58:39,531 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:58:39,647 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:58:39,647 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 37 [2023-08-25 20:58:39,651 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-08-25 20:58:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 20:58:39,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655433068] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:58:39,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:58:39,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 19 [2023-08-25 20:58:39,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301936927] [2023-08-25 20:58:39,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:58:39,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-25 20:58:39,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:58:39,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-25 20:58:39,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=308, Unknown=4, NotChecked=0, Total=380 [2023-08-25 20:58:39,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 987 [2023-08-25 20:58:39,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 697 transitions, 8871 flow. Second operand has 20 states, 20 states have (on average 316.15) internal successors, (6323), 20 states have internal predecessors, (6323), 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) [2023-08-25 20:58:39,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:58:39,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 987 [2023-08-25 20:58:39,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:59:18,515 INFO L124 PetriNetUnfolderBase]: 83975/139512 cut-off events. [2023-08-25 20:59:18,515 INFO L125 PetriNetUnfolderBase]: For 11402495/11403654 co-relation queries the response was YES. [2023-08-25 20:59:23,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072380 conditions, 139512 events. 83975/139512 cut-off events. For 11402495/11403654 co-relation queries the response was YES. Maximal size of possible extension queue 5512. Compared 1340543 event pairs, 23070 based on Foata normal form. 2240/136207 useless extension candidates. Maximal degree in co-relation 1072222. Up to 61678 conditions per place. [2023-08-25 20:59:24,110 INFO L140 encePairwiseOnDemand]: 977/987 looper letters, 807 selfloop transitions, 393 changer transitions 0/1210 dead transitions. [2023-08-25 20:59:24,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1210 transitions, 17930 flow [2023-08-25 20:59:24,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-25 20:59:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-25 20:59:24,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 8136 transitions. [2023-08-25 20:59:24,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32972644376899696 [2023-08-25 20:59:24,115 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 8136 transitions. [2023-08-25 20:59:24,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 8136 transitions. [2023-08-25 20:59:24,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:59:24,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 8136 transitions. [2023-08-25 20:59:24,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 325.44) internal successors, (8136), 25 states have internal predecessors, (8136), 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) [2023-08-25 20:59:24,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 987.0) internal successors, (25662), 26 states have internal predecessors, (25662), 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) [2023-08-25 20:59:24,134 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 987.0) internal successors, (25662), 26 states have internal predecessors, (25662), 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) [2023-08-25 20:59:24,134 INFO L175 Difference]: Start difference. First operand has 377 places, 697 transitions, 8871 flow. Second operand 25 states and 8136 transitions. [2023-08-25 20:59:24,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1210 transitions, 17930 flow [2023-08-25 21:01:14,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 1210 transitions, 17860 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:01:14,415 INFO L231 Difference]: Finished difference. Result has 417 places, 795 transitions, 11899 flow [2023-08-25 21:01:14,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=987, PETRI_DIFFERENCE_MINUEND_FLOW=8822, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=311, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=11899, PETRI_PLACES=417, PETRI_TRANSITIONS=795} [2023-08-25 21:01:14,416 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 276 predicate places. [2023-08-25 21:01:14,416 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 795 transitions, 11899 flow [2023-08-25 21:01:14,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 316.15) internal successors, (6323), 20 states have internal predecessors, (6323), 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) [2023-08-25 21:01:14,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:01:14,417 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:01:14,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-25 21:01:14,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-08-25 21:01:14,618 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 152 more)] === [2023-08-25 21:01:14,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:01:14,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2015076484, now seen corresponding path program 1 times [2023-08-25 21:01:14,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:01:14,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523910736] [2023-08-25 21:01:14,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:01:14,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:01:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:01:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:01:14,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:01:14,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523910736] [2023-08-25 21:01:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523910736] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:01:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199321981] [2023-08-25 21:01:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:01:14,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:01:14,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:01:14,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 21:01:14,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 21:01:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:01:15,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-25 21:01:15,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:01:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:01:15,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 21:01:15,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199321981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:01:15,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 21:01:15,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-08-25 21:01:15,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873018571] [2023-08-25 21:01:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:01:15,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:01:15,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:01:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:01:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-25 21:01:15,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 987 [2023-08-25 21:01:15,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 795 transitions, 11899 flow. Second operand has 4 states, 4 states have (on average 396.75) internal successors, (1587), 4 states have internal predecessors, (1587), 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) [2023-08-25 21:01:15,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:01:15,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 987 [2023-08-25 21:01:15,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand