/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/chl-file-item-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:05:28,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:05:28,245 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 19:05:28,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:05:28,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:05:28,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:05:28,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:05:28,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:05:28,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:05:28,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:05:28,272 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:05:28,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:05:28,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:05:28,273 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:05:28,274 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:05:28,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:05:28,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:05:28,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:05:28,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:05:28,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:05:28,276 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:05:28,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:05:28,276 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:05:28,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:05:28,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:05:28,278 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:05:28,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:05:28,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:05:28,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:05:28,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:05:28,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:05:28,280 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:05:28,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:05:28,281 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:05:28,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:05:28,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:05:28,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:05:28,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:05:28,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:05:28,672 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:05:28,672 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:05:28,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2023-08-25 19:05:29,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:05:30,079 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:05:30,080 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2023-08-25 19:05:30,089 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d608c7f50/50ad8b04185346c99249cb61d26566ce/FLAGf443a2c5a [2023-08-25 19:05:30,105 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d608c7f50/50ad8b04185346c99249cb61d26566ce [2023-08-25 19:05:30,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:05:30,112 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:05:30,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:05:30,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:05:30,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:05:30,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1503cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30, skipping insertion in model container [2023-08-25 19:05:30,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,150 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:05:30,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:05:30,371 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:05:30,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:05:30,434 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:05:30,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30 WrapperNode [2023-08-25 19:05:30,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:05:30,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:05:30,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:05:30,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:05:30,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,503 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 333 [2023-08-25 19:05:30,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:05:30,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:05:30,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:05:30,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:05:30,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:05:30,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:05:30,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:05:30,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:05:30,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (1/1) ... [2023-08-25 19:05:30,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:05:30,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:05:30,583 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 19:05:30,609 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 19:05:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:05:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:05:30,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:05:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:05:30,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:05:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:05:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:05:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:05:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:05:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:05:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:05:30,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:05:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:05:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:05:30,629 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 19:05:30,744 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:05:30,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:05:31,316 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:05:31,332 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:05:31,332 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:05:31,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:05:31 BoogieIcfgContainer [2023-08-25 19:05:31,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:05:31,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:05:31,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:05:31,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:05:31,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:05:30" (1/3) ... [2023-08-25 19:05:31,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cccb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:05:31, skipping insertion in model container [2023-08-25 19:05:31,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:05:30" (2/3) ... [2023-08-25 19:05:31,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cccb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:05:31, skipping insertion in model container [2023-08-25 19:05:31,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:05:31" (3/3) ... [2023-08-25 19:05:31,345 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2023-08-25 19:05:31,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:05:31,361 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-08-25 19:05:31,361 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:05:31,494 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 19:05:31,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 411 transitions, 846 flow [2023-08-25 19:05:31,717 INFO L124 PetriNetUnfolderBase]: 21/408 cut-off events. [2023-08-25 19:05:31,717 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:05:31,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 408 events. 21/408 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1049 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 264. Up to 2 conditions per place. [2023-08-25 19:05:31,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 400 places, 411 transitions, 846 flow [2023-08-25 19:05:31,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 386 places, 397 transitions, 812 flow [2023-08-25 19:05:31,749 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:05:31,762 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 386 places, 397 transitions, 812 flow [2023-08-25 19:05:31,765 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 386 places, 397 transitions, 812 flow [2023-08-25 19:05:31,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 386 places, 397 transitions, 812 flow [2023-08-25 19:05:31,839 INFO L124 PetriNetUnfolderBase]: 21/397 cut-off events. [2023-08-25 19:05:31,839 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:05:31,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 397 events. 21/397 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1050 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 264. Up to 2 conditions per place. [2023-08-25 19:05:31,866 INFO L119 LiptonReduction]: Number of co-enabled transitions 42486 [2023-08-25 19:05:40,633 INFO L134 LiptonReduction]: Checked pairs total: 156857 [2023-08-25 19:05:40,633 INFO L136 LiptonReduction]: Total number of compositions: 410 [2023-08-25 19:05:40,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:05:40,661 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;@6248c197, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:05:40,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2023-08-25 19:05:40,663 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:05:40,663 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:05:40,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:05:40,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:40,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:05:40,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:40,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1554, now seen corresponding path program 1 times [2023-08-25 19:05:40,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:40,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123712416] [2023-08-25 19:05:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:40,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:40,772 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 19:05:40,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:40,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123712416] [2023-08-25 19:05:40,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123712416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:40,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:40,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:05:40,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212461734] [2023-08-25 19:05:40,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:40,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:05:40,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:40,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:05:40,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:05:40,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 821 [2023-08-25 19:05:40,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 117 transitions, 252 flow. Second operand has 2 states, 2 states have (on average 396.5) internal successors, (793), 2 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:40,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:40,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 821 [2023-08-25 19:05:40,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:41,955 INFO L124 PetriNetUnfolderBase]: 6016/10619 cut-off events. [2023-08-25 19:05:41,956 INFO L125 PetriNetUnfolderBase]: For 284/284 co-relation queries the response was YES. [2023-08-25 19:05:41,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18734 conditions, 10619 events. 6016/10619 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 82958 event pairs, 3768 based on Foata normal form. 122/7970 useless extension candidates. Maximal degree in co-relation 17356. Up to 7838 conditions per place. [2023-08-25 19:05:42,054 INFO L140 encePairwiseOnDemand]: 801/821 looper letters, 49 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2023-08-25 19:05:42,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 97 transitions, 310 flow [2023-08-25 19:05:42,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:05:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:05:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 861 transitions. [2023-08-25 19:05:42,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5243605359317906 [2023-08-25 19:05:42,074 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 861 transitions. [2023-08-25 19:05:42,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 861 transitions. [2023-08-25 19:05:42,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:42,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 861 transitions. [2023-08-25 19:05:42,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 430.5) internal successors, (861), 2 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:42,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 821.0) internal successors, (2463), 3 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:42,097 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 821.0) internal successors, (2463), 3 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:42,099 INFO L175 Difference]: Start difference. First operand has 114 places, 117 transitions, 252 flow. Second operand 2 states and 861 transitions. [2023-08-25 19:05:42,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 97 transitions, 310 flow [2023-08-25 19:05:42,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 97 transitions, 298 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 19:05:42,110 INFO L231 Difference]: Finished difference. Result has 90 places, 97 transitions, 200 flow [2023-08-25 19:05:42,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=200, PETRI_PLACES=90, PETRI_TRANSITIONS=97} [2023-08-25 19:05:42,115 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -24 predicate places. [2023-08-25 19:05:42,115 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 97 transitions, 200 flow [2023-08-25 19:05:42,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 396.5) internal successors, (793), 2 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:42,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:42,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 19:05:42,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:05:42,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:42,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:42,124 INFO L85 PathProgramCache]: Analyzing trace with hash 47946375, now seen corresponding path program 1 times [2023-08-25 19:05:42,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:42,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037763312] [2023-08-25 19:05:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:42,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:42,243 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 19:05:42,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:42,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037763312] [2023-08-25 19:05:42,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037763312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:42,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:42,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739863988] [2023-08-25 19:05:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:42,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:42,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:42,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:42,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:42,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 821 [2023-08-25 19:05:42,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 97 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:42,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:42,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 821 [2023-08-25 19:05:42,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:43,428 INFO L124 PetriNetUnfolderBase]: 7877/14059 cut-off events. [2023-08-25 19:05:43,428 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-08-25 19:05:43,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24499 conditions, 14059 events. 7877/14059 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 112789 event pairs, 3692 based on Foata normal form. 0/10697 useless extension candidates. Maximal degree in co-relation 24496. Up to 10277 conditions per place. [2023-08-25 19:05:43,507 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 69 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2023-08-25 19:05:43,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 378 flow [2023-08-25 19:05:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1234 transitions. [2023-08-25 19:05:43,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010150223304912 [2023-08-25 19:05:43,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1234 transitions. [2023-08-25 19:05:43,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1234 transitions. [2023-08-25 19:05:43,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:43,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1234 transitions. [2023-08-25 19:05:43,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:43,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:43,521 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:43,522 INFO L175 Difference]: Start difference. First operand has 90 places, 97 transitions, 200 flow. Second operand 3 states and 1234 transitions. [2023-08-25 19:05:43,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 378 flow [2023-08-25 19:05:43,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 114 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:43,525 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 210 flow [2023-08-25 19:05:43,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2023-08-25 19:05:43,526 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -23 predicate places. [2023-08-25 19:05:43,526 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 210 flow [2023-08-25 19:05:43,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:43,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:43,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:05:43,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:05:43,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:43,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1167809338, now seen corresponding path program 1 times [2023-08-25 19:05:43,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:43,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083980768] [2023-08-25 19:05:43,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:43,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:43,584 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 19:05:43,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:43,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083980768] [2023-08-25 19:05:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083980768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:43,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:43,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:43,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338531463] [2023-08-25 19:05:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:43,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:43,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:43,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 821 [2023-08-25 19:05:43,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:43,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:43,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 821 [2023-08-25 19:05:43,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:44,698 INFO L124 PetriNetUnfolderBase]: 8873/15143 cut-off events. [2023-08-25 19:05:44,699 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-08-25 19:05:44,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26959 conditions, 15143 events. 8873/15143 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 117568 event pairs, 1450 based on Foata normal form. 0/11925 useless extension candidates. Maximal degree in co-relation 26955. Up to 11304 conditions per place. [2023-08-25 19:05:44,798 INFO L140 encePairwiseOnDemand]: 815/821 looper letters, 72 selfloop transitions, 3 changer transitions 0/116 dead transitions. [2023-08-25 19:05:44,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 116 transitions, 400 flow [2023-08-25 19:05:44,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1230 transitions. [2023-08-25 19:05:44,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4993909866017052 [2023-08-25 19:05:44,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1230 transitions. [2023-08-25 19:05:44,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1230 transitions. [2023-08-25 19:05:44,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:44,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1230 transitions. [2023-08-25 19:05:44,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:44,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:44,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:44,812 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 210 flow. Second operand 3 states and 1230 transitions. [2023-08-25 19:05:44,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 116 transitions, 400 flow [2023-08-25 19:05:44,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 116 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:44,816 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 225 flow [2023-08-25 19:05:44,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2023-08-25 19:05:44,818 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -23 predicate places. [2023-08-25 19:05:44,818 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 225 flow [2023-08-25 19:05:44,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:44,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:44,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:44,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:05:44,822 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:44,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1277049014, now seen corresponding path program 1 times [2023-08-25 19:05:44,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:44,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303514558] [2023-08-25 19:05:44,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:44,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:44,891 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 19:05:44,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:44,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303514558] [2023-08-25 19:05:44,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303514558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:44,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:44,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:44,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349463282] [2023-08-25 19:05:44,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:44,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:44,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:44,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:44,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:44,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 821 [2023-08-25 19:05:44,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:44,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:44,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 821 [2023-08-25 19:05:44,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:46,157 INFO L124 PetriNetUnfolderBase]: 9499/17293 cut-off events. [2023-08-25 19:05:46,157 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-08-25 19:05:46,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30196 conditions, 17293 events. 9499/17293 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 962. Compared 150790 event pairs, 2005 based on Foata normal form. 0/13689 useless extension candidates. Maximal degree in co-relation 30191. Up to 9363 conditions per place. [2023-08-25 19:05:46,254 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 85 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2023-08-25 19:05:46,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 131 transitions, 472 flow [2023-08-25 19:05:46,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:46,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1250 transitions. [2023-08-25 19:05:46,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5075111652456354 [2023-08-25 19:05:46,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1250 transitions. [2023-08-25 19:05:46,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1250 transitions. [2023-08-25 19:05:46,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:46,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1250 transitions. [2023-08-25 19:05:46,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:46,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:46,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:46,266 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 225 flow. Second operand 3 states and 1250 transitions. [2023-08-25 19:05:46,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 131 transitions, 472 flow [2023-08-25 19:05:46,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 131 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:46,269 INFO L231 Difference]: Finished difference. Result has 92 places, 97 transitions, 235 flow [2023-08-25 19:05:46,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=92, PETRI_TRANSITIONS=97} [2023-08-25 19:05:46,270 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -22 predicate places. [2023-08-25 19:05:46,270 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 97 transitions, 235 flow [2023-08-25 19:05:46,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:46,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:46,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:46,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:05:46,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:46,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash 491501252, now seen corresponding path program 1 times [2023-08-25 19:05:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:46,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072296191] [2023-08-25 19:05:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:46,305 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 19:05:46,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:46,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072296191] [2023-08-25 19:05:46,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072296191] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:46,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:46,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:46,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30369264] [2023-08-25 19:05:46,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:46,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:46,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:46,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:46,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:46,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 821 [2023-08-25 19:05:46,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 97 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:46,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:46,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 821 [2023-08-25 19:05:46,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:47,387 INFO L124 PetriNetUnfolderBase]: 9505/17333 cut-off events. [2023-08-25 19:05:47,387 INFO L125 PetriNetUnfolderBase]: For 406/406 co-relation queries the response was YES. [2023-08-25 19:05:47,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30805 conditions, 17333 events. 9505/17333 cut-off events. For 406/406 co-relation queries the response was YES. Maximal size of possible extension queue 896. Compared 148609 event pairs, 2002 based on Foata normal form. 0/12954 useless extension candidates. Maximal degree in co-relation 30799. Up to 12632 conditions per place. [2023-08-25 19:05:47,517 INFO L140 encePairwiseOnDemand]: 813/821 looper letters, 68 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2023-08-25 19:05:47,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 415 flow [2023-08-25 19:05:47,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1218 transitions. [2023-08-25 19:05:47,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4945188794153471 [2023-08-25 19:05:47,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1218 transitions. [2023-08-25 19:05:47,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1218 transitions. [2023-08-25 19:05:47,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:47,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1218 transitions. [2023-08-25 19:05:47,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:47,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:47,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:47,532 INFO L175 Difference]: Start difference. First operand has 92 places, 97 transitions, 235 flow. Second operand 3 states and 1218 transitions. [2023-08-25 19:05:47,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 415 flow [2023-08-25 19:05:47,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 114 transitions, 415 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:47,537 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 255 flow [2023-08-25 19:05:47,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2023-08-25 19:05:47,540 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -23 predicate places. [2023-08-25 19:05:47,541 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 255 flow [2023-08-25 19:05:47,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:47,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:47,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:47,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:05:47,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:47,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:47,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1943316473, now seen corresponding path program 1 times [2023-08-25 19:05:47,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:47,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862650652] [2023-08-25 19:05:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:47,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:47,593 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 19:05:47,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:47,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862650652] [2023-08-25 19:05:47,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862650652] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:47,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:47,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:47,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554529305] [2023-08-25 19:05:47,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:47,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:47,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:47,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:47,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:47,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 821 [2023-08-25 19:05:47,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:47,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:47,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 821 [2023-08-25 19:05:47,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:48,448 INFO L124 PetriNetUnfolderBase]: 8678/15130 cut-off events. [2023-08-25 19:05:48,448 INFO L125 PetriNetUnfolderBase]: For 1027/1027 co-relation queries the response was YES. [2023-08-25 19:05:48,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28891 conditions, 15130 events. 8678/15130 cut-off events. For 1027/1027 co-relation queries the response was YES. Maximal size of possible extension queue 835. Compared 123019 event pairs, 3820 based on Foata normal form. 0/11305 useless extension candidates. Maximal degree in co-relation 28884. Up to 8968 conditions per place. [2023-08-25 19:05:48,571 INFO L140 encePairwiseOnDemand]: 814/821 looper letters, 77 selfloop transitions, 6 changer transitions 0/125 dead transitions. [2023-08-25 19:05:48,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 125 transitions, 483 flow [2023-08-25 19:05:48,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:48,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1234 transitions. [2023-08-25 19:05:48,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010150223304912 [2023-08-25 19:05:48,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1234 transitions. [2023-08-25 19:05:48,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1234 transitions. [2023-08-25 19:05:48,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:48,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1234 transitions. [2023-08-25 19:05:48,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:48,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:48,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:48,587 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 255 flow. Second operand 3 states and 1234 transitions. [2023-08-25 19:05:48,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 125 transitions, 483 flow [2023-08-25 19:05:48,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 125 transitions, 483 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:48,590 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 265 flow [2023-08-25 19:05:48,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2023-08-25 19:05:48,591 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -22 predicate places. [2023-08-25 19:05:48,591 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 265 flow [2023-08-25 19:05:48,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:48,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:48,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:48,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:05:48,592 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:48,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:48,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1116584757, now seen corresponding path program 1 times [2023-08-25 19:05:48,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:48,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511283071] [2023-08-25 19:05:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:48,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:48,617 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 19:05:48,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:48,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511283071] [2023-08-25 19:05:48,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511283071] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:48,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:48,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870473013] [2023-08-25 19:05:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:48,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:48,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:48,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 821 [2023-08-25 19:05:48,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:48,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:48,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 821 [2023-08-25 19:05:48,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:49,848 INFO L124 PetriNetUnfolderBase]: 11646/19390 cut-off events. [2023-08-25 19:05:49,848 INFO L125 PetriNetUnfolderBase]: For 3872/3872 co-relation queries the response was YES. [2023-08-25 19:05:49,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40544 conditions, 19390 events. 11646/19390 cut-off events. For 3872/3872 co-relation queries the response was YES. Maximal size of possible extension queue 1023. Compared 153627 event pairs, 2713 based on Foata normal form. 0/15138 useless extension candidates. Maximal degree in co-relation 40536. Up to 10781 conditions per place. [2023-08-25 19:05:49,935 INFO L140 encePairwiseOnDemand]: 815/821 looper letters, 96 selfloop transitions, 3 changer transitions 0/136 dead transitions. [2023-08-25 19:05:49,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 136 transitions, 585 flow [2023-08-25 19:05:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:49,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:49,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1244 transitions. [2023-08-25 19:05:49,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050751116524563 [2023-08-25 19:05:49,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1244 transitions. [2023-08-25 19:05:49,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1244 transitions. [2023-08-25 19:05:49,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:49,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1244 transitions. [2023-08-25 19:05:49,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:49,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:49,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:49,948 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 265 flow. Second operand 3 states and 1244 transitions. [2023-08-25 19:05:49,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 136 transitions, 585 flow [2023-08-25 19:05:50,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 136 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:05:50,055 INFO L231 Difference]: Finished difference. Result has 90 places, 96 transitions, 268 flow [2023-08-25 19:05:50,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=90, PETRI_TRANSITIONS=96} [2023-08-25 19:05:50,056 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -24 predicate places. [2023-08-25 19:05:50,056 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 96 transitions, 268 flow [2023-08-25 19:05:50,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:50,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:50,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:50,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:05:50,057 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:50,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash -703580856, now seen corresponding path program 1 times [2023-08-25 19:05:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:50,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960816892] [2023-08-25 19:05:50,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:50,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:50,080 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 19:05:50,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:50,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960816892] [2023-08-25 19:05:50,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960816892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:50,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:50,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:50,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803024247] [2023-08-25 19:05:50,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:50,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:50,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:50,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:50,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:50,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 821 [2023-08-25 19:05:50,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 96 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:50,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:50,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 821 [2023-08-25 19:05:50,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:51,294 INFO L124 PetriNetUnfolderBase]: 14869/24387 cut-off events. [2023-08-25 19:05:51,294 INFO L125 PetriNetUnfolderBase]: For 1965/1965 co-relation queries the response was YES. [2023-08-25 19:05:51,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49475 conditions, 24387 events. 14869/24387 cut-off events. For 1965/1965 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 194630 event pairs, 5607 based on Foata normal form. 0/19498 useless extension candidates. Maximal degree in co-relation 49467. Up to 11937 conditions per place. [2023-08-25 19:05:51,468 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 109 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-08-25 19:05:51,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 627 flow [2023-08-25 19:05:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:51,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1261 transitions. [2023-08-25 19:05:51,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.511977263499797 [2023-08-25 19:05:51,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1261 transitions. [2023-08-25 19:05:51,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1261 transitions. [2023-08-25 19:05:51,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:51,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1261 transitions. [2023-08-25 19:05:51,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:51,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:51,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:51,481 INFO L175 Difference]: Start difference. First operand has 90 places, 96 transitions, 268 flow. Second operand 3 states and 1261 transitions. [2023-08-25 19:05:51,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 627 flow [2023-08-25 19:05:51,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 146 transitions, 627 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:51,484 INFO L231 Difference]: Finished difference. Result has 91 places, 96 transitions, 278 flow [2023-08-25 19:05:51,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=91, PETRI_TRANSITIONS=96} [2023-08-25 19:05:51,485 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -23 predicate places. [2023-08-25 19:05:51,485 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 96 transitions, 278 flow [2023-08-25 19:05:51,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:51,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:51,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:51,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:05:51,486 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:51,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:51,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1823945396, now seen corresponding path program 1 times [2023-08-25 19:05:51,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:51,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378962827] [2023-08-25 19:05:51,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:51,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:51,509 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 19:05:51,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:51,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378962827] [2023-08-25 19:05:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378962827] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:51,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:51,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337015687] [2023-08-25 19:05:51,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:51,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:51,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:51,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:51,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:51,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 821 [2023-08-25 19:05:51,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 96 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:51,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:51,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 821 [2023-08-25 19:05:51,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:52,915 INFO L124 PetriNetUnfolderBase]: 18328/29096 cut-off events. [2023-08-25 19:05:52,915 INFO L125 PetriNetUnfolderBase]: For 2552/2552 co-relation queries the response was YES. [2023-08-25 19:05:53,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60681 conditions, 29096 events. 18328/29096 cut-off events. For 2552/2552 co-relation queries the response was YES. Maximal size of possible extension queue 1267. Compared 223232 event pairs, 4639 based on Foata normal form. 0/22679 useless extension candidates. Maximal degree in co-relation 60672. Up to 18423 conditions per place. [2023-08-25 19:05:53,124 INFO L140 encePairwiseOnDemand]: 813/821 looper letters, 99 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2023-08-25 19:05:53,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 134 transitions, 587 flow [2023-08-25 19:05:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:53,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1239 transitions. [2023-08-25 19:05:53,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5030450669914738 [2023-08-25 19:05:53,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1239 transitions. [2023-08-25 19:05:53,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1239 transitions. [2023-08-25 19:05:53,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:53,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1239 transitions. [2023-08-25 19:05:53,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:53,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:53,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:53,135 INFO L175 Difference]: Start difference. First operand has 91 places, 96 transitions, 278 flow. Second operand 3 states and 1239 transitions. [2023-08-25 19:05:53,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 134 transitions, 587 flow [2023-08-25 19:05:53,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 134 transitions, 587 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:53,139 INFO L231 Difference]: Finished difference. Result has 90 places, 96 transitions, 298 flow [2023-08-25 19:05:53,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=90, PETRI_TRANSITIONS=96} [2023-08-25 19:05:53,139 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -24 predicate places. [2023-08-25 19:05:53,139 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 96 transitions, 298 flow [2023-08-25 19:05:53,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:53,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:53,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:53,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:05:53,141 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:53,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:53,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1831305717, now seen corresponding path program 1 times [2023-08-25 19:05:53,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:53,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364464211] [2023-08-25 19:05:53,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:53,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:53,162 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 19:05:53,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:53,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364464211] [2023-08-25 19:05:53,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364464211] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:53,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:53,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:53,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24773624] [2023-08-25 19:05:53,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:53,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:53,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:53,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:53,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:53,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 821 [2023-08-25 19:05:53,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 96 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:53,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:53,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 821 [2023-08-25 19:05:53,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:54,571 INFO L124 PetriNetUnfolderBase]: 18143/28441 cut-off events. [2023-08-25 19:05:54,571 INFO L125 PetriNetUnfolderBase]: For 3570/3570 co-relation queries the response was YES. [2023-08-25 19:05:54,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62703 conditions, 28441 events. 18143/28441 cut-off events. For 3570/3570 co-relation queries the response was YES. Maximal size of possible extension queue 1189. Compared 214326 event pairs, 7905 based on Foata normal form. 0/23376 useless extension candidates. Maximal degree in co-relation 62693. Up to 15713 conditions per place. [2023-08-25 19:05:54,778 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 113 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2023-08-25 19:05:54,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 148 transitions, 681 flow [2023-08-25 19:05:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:54,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1260 transitions. [2023-08-25 19:05:54,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5115712545676004 [2023-08-25 19:05:54,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1260 transitions. [2023-08-25 19:05:54,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1260 transitions. [2023-08-25 19:05:54,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:54,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1260 transitions. [2023-08-25 19:05:54,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:54,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:54,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:54,791 INFO L175 Difference]: Start difference. First operand has 90 places, 96 transitions, 298 flow. Second operand 3 states and 1260 transitions. [2023-08-25 19:05:54,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 148 transitions, 681 flow [2023-08-25 19:05:54,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 148 transitions, 681 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:54,802 INFO L231 Difference]: Finished difference. Result has 91 places, 96 transitions, 308 flow [2023-08-25 19:05:54,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=91, PETRI_TRANSITIONS=96} [2023-08-25 19:05:54,802 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -23 predicate places. [2023-08-25 19:05:54,803 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 96 transitions, 308 flow [2023-08-25 19:05:54,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:54,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:54,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:05:54,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:05:54,804 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:54,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:54,804 INFO L85 PathProgramCache]: Analyzing trace with hash 894106791, now seen corresponding path program 1 times [2023-08-25 19:05:54,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:54,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103461518] [2023-08-25 19:05:54,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:54,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:54,826 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 19:05:54,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:54,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103461518] [2023-08-25 19:05:54,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103461518] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:54,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:54,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:05:54,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119614727] [2023-08-25 19:05:54,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:54,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:05:54,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:54,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:05:54,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:05:54,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 821 [2023-08-25 19:05:54,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 96 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 390.3333333333333) internal successors, (1171), 3 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:54,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:54,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 821 [2023-08-25 19:05:54,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:56,347 INFO L124 PetriNetUnfolderBase]: 19316/29486 cut-off events. [2023-08-25 19:05:56,347 INFO L125 PetriNetUnfolderBase]: For 4415/4415 co-relation queries the response was YES. [2023-08-25 19:05:56,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66962 conditions, 29486 events. 19316/29486 cut-off events. For 4415/4415 co-relation queries the response was YES. Maximal size of possible extension queue 1137. Compared 213295 event pairs, 8718 based on Foata normal form. 0/24090 useless extension candidates. Maximal degree in co-relation 66951. Up to 17334 conditions per place. [2023-08-25 19:05:56,576 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 110 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2023-08-25 19:05:56,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 144 transitions, 669 flow [2023-08-25 19:05:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:05:56,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:05:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1259 transitions. [2023-08-25 19:05:56,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.511165245635404 [2023-08-25 19:05:56,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1259 transitions. [2023-08-25 19:05:56,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1259 transitions. [2023-08-25 19:05:56,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:56,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1259 transitions. [2023-08-25 19:05:56,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 419.6666666666667) internal successors, (1259), 3 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:56,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:56,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:56,586 INFO L175 Difference]: Start difference. First operand has 91 places, 96 transitions, 308 flow. Second operand 3 states and 1259 transitions. [2023-08-25 19:05:56,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 144 transitions, 669 flow [2023-08-25 19:05:56,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 144 transitions, 669 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:56,596 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 318 flow [2023-08-25 19:05:56,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2023-08-25 19:05:56,597 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -22 predicate places. [2023-08-25 19:05:56,597 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 318 flow [2023-08-25 19:05:56,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 390.3333333333333) internal successors, (1171), 3 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:56,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:56,597 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] [2023-08-25 19:05:56,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:05:56,598 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:56,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:56,598 INFO L85 PathProgramCache]: Analyzing trace with hash 4054073, now seen corresponding path program 1 times [2023-08-25 19:05:56,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:56,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599725293] [2023-08-25 19:05:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:56,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:57,220 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 19:05:57,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:57,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599725293] [2023-08-25 19:05:57,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599725293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:57,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:57,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:57,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114950611] [2023-08-25 19:05:57,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:57,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:57,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:57,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 821 [2023-08-25 19:05:57,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 387.5) internal successors, (1550), 4 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:57,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:57,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 821 [2023-08-25 19:05:57,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:05:59,210 INFO L124 PetriNetUnfolderBase]: 19608/30357 cut-off events. [2023-08-25 19:05:59,210 INFO L125 PetriNetUnfolderBase]: For 4626/4656 co-relation queries the response was YES. [2023-08-25 19:05:59,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69925 conditions, 30357 events. 19608/30357 cut-off events. For 4626/4656 co-relation queries the response was YES. Maximal size of possible extension queue 1266. Compared 229542 event pairs, 4542 based on Foata normal form. 33/24654 useless extension candidates. Maximal degree in co-relation 69913. Up to 16851 conditions per place. [2023-08-25 19:05:59,380 INFO L140 encePairwiseOnDemand]: 809/821 looper letters, 135 selfloop transitions, 13 changer transitions 15/199 dead transitions. [2023-08-25 19:05:59,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 199 transitions, 933 flow [2023-08-25 19:05:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:05:59,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:05:59,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2053 transitions. [2023-08-25 19:05:59,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.500121802679659 [2023-08-25 19:05:59,385 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2053 transitions. [2023-08-25 19:05:59,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2053 transitions. [2023-08-25 19:05:59,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:05:59,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2053 transitions. [2023-08-25 19:05:59,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 410.6) internal successors, (2053), 5 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,394 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,395 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 318 flow. Second operand 5 states and 2053 transitions. [2023-08-25 19:05:59,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 199 transitions, 933 flow [2023-08-25 19:05:59,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 199 transitions, 933 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:05:59,404 INFO L231 Difference]: Finished difference. Result has 98 places, 107 transitions, 398 flow [2023-08-25 19:05:59,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=398, PETRI_PLACES=98, PETRI_TRANSITIONS=107} [2023-08-25 19:05:59,406 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -16 predicate places. [2023-08-25 19:05:59,406 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 107 transitions, 398 flow [2023-08-25 19:05:59,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 387.5) internal successors, (1550), 4 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:05:59,407 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] [2023-08-25 19:05:59,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:05:59,407 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:05:59,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:05:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 741432580, now seen corresponding path program 1 times [2023-08-25 19:05:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:05:59,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101860011] [2023-08-25 19:05:59,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:05:59,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:05:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:05:59,584 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 19:05:59,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:05:59,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101860011] [2023-08-25 19:05:59,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101860011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:05:59,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:05:59,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:05:59,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945215622] [2023-08-25 19:05:59,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:05:59,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:05:59,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:05:59,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:05:59,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:05:59,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 821 [2023-08-25 19:05:59,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 107 transitions, 398 flow. Second operand has 4 states, 4 states have (on average 391.5) internal successors, (1566), 4 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:05:59,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:05:59,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 821 [2023-08-25 19:05:59,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:02,956 INFO L124 PetriNetUnfolderBase]: 29134/46156 cut-off events. [2023-08-25 19:06:02,956 INFO L125 PetriNetUnfolderBase]: For 12807/13088 co-relation queries the response was YES. [2023-08-25 19:06:03,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118234 conditions, 46156 events. 29134/46156 cut-off events. For 12807/13088 co-relation queries the response was YES. Maximal size of possible extension queue 1914. Compared 379465 event pairs, 11730 based on Foata normal form. 32/39538 useless extension candidates. Maximal degree in co-relation 118219. Up to 21569 conditions per place. [2023-08-25 19:06:03,355 INFO L140 encePairwiseOnDemand]: 812/821 looper letters, 174 selfloop transitions, 10 changer transitions 65/285 dead transitions. [2023-08-25 19:06:03,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 285 transitions, 1564 flow [2023-08-25 19:06:03,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2104 transitions. [2023-08-25 19:06:03,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125456760048721 [2023-08-25 19:06:03,360 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2104 transitions. [2023-08-25 19:06:03,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2104 transitions. [2023-08-25 19:06:03,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:03,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2104 transitions. [2023-08-25 19:06:03,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 420.8) internal successors, (2104), 5 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,371 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,371 INFO L175 Difference]: Start difference. First operand has 98 places, 107 transitions, 398 flow. Second operand 5 states and 2104 transitions. [2023-08-25 19:06:03,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 285 transitions, 1564 flow [2023-08-25 19:06:03,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 285 transitions, 1564 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:06:03,417 INFO L231 Difference]: Finished difference. Result has 106 places, 115 transitions, 483 flow [2023-08-25 19:06:03,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=483, PETRI_PLACES=106, PETRI_TRANSITIONS=115} [2023-08-25 19:06:03,418 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -8 predicate places. [2023-08-25 19:06:03,418 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 115 transitions, 483 flow [2023-08-25 19:06:03,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 391.5) internal successors, (1566), 4 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:03,419 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] [2023-08-25 19:06:03,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:06:03,419 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:03,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:03,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1515566496, now seen corresponding path program 2 times [2023-08-25 19:06:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:03,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463722287] [2023-08-25 19:06:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:03,519 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 19:06:03,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:03,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463722287] [2023-08-25 19:06:03,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463722287] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:03,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:03,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593921895] [2023-08-25 19:06:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:03,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:03,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:03,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:03,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:03,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 821 [2023-08-25 19:06:03,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 115 transitions, 483 flow. Second operand has 4 states, 4 states have (on average 391.5) internal successors, (1566), 4 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:03,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:03,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 821 [2023-08-25 19:06:03,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:07,320 INFO L124 PetriNetUnfolderBase]: 26015/42194 cut-off events. [2023-08-25 19:06:07,320 INFO L125 PetriNetUnfolderBase]: For 22703/23260 co-relation queries the response was YES. [2023-08-25 19:06:07,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112749 conditions, 42194 events. 26015/42194 cut-off events. For 22703/23260 co-relation queries the response was YES. Maximal size of possible extension queue 1697. Compared 352494 event pairs, 6489 based on Foata normal form. 716/38770 useless extension candidates. Maximal degree in co-relation 112730. Up to 22215 conditions per place. [2023-08-25 19:06:07,749 INFO L140 encePairwiseOnDemand]: 814/821 looper letters, 135 selfloop transitions, 5 changer transitions 64/240 dead transitions. [2023-08-25 19:06:07,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 240 transitions, 1374 flow [2023-08-25 19:06:07,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2073 transitions. [2023-08-25 19:06:07,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.504993909866017 [2023-08-25 19:06:07,753 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2073 transitions. [2023-08-25 19:06:07,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2073 transitions. [2023-08-25 19:06:07,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:07,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2073 transitions. [2023-08-25 19:06:07,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 414.6) internal successors, (2073), 5 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,762 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,762 INFO L175 Difference]: Start difference. First operand has 106 places, 115 transitions, 483 flow. Second operand 5 states and 2073 transitions. [2023-08-25 19:06:07,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 240 transitions, 1374 flow [2023-08-25 19:06:07,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 240 transitions, 1374 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:06:07,802 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 520 flow [2023-08-25 19:06:07,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=520, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2023-08-25 19:06:07,802 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2023-08-25 19:06:07,802 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 520 flow [2023-08-25 19:06:07,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 391.5) internal successors, (1566), 4 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:07,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:07,803 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] [2023-08-25 19:06:07,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:06:07,803 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:07,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:07,803 INFO L85 PathProgramCache]: Analyzing trace with hash -969388615, now seen corresponding path program 2 times [2023-08-25 19:06:07,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:07,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733476353] [2023-08-25 19:06:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:07,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:08,119 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 19:06:08,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:08,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733476353] [2023-08-25 19:06:08,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733476353] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:08,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:08,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:08,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942659710] [2023-08-25 19:06:08,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:08,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:08,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:08,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:08,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:08,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 821 [2023-08-25 19:06:08,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 520 flow. Second operand has 4 states, 4 states have (on average 387.5) internal successors, (1550), 4 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:08,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:08,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 821 [2023-08-25 19:06:08,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:11,148 INFO L124 PetriNetUnfolderBase]: 21440/34123 cut-off events. [2023-08-25 19:06:11,148 INFO L125 PetriNetUnfolderBase]: For 25600/26835 co-relation queries the response was YES. [2023-08-25 19:06:11,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94770 conditions, 34123 events. 21440/34123 cut-off events. For 25600/26835 co-relation queries the response was YES. Maximal size of possible extension queue 1365. Compared 270863 event pairs, 5010 based on Foata normal form. 667/30507 useless extension candidates. Maximal degree in co-relation 94747. Up to 20365 conditions per place. [2023-08-25 19:06:11,326 INFO L140 encePairwiseOnDemand]: 809/821 looper letters, 143 selfloop transitions, 14 changer transitions 14/207 dead transitions. [2023-08-25 19:06:11,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 207 transitions, 1249 flow [2023-08-25 19:06:11,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:11,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2045 transitions. [2023-08-25 19:06:11,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4981729598051157 [2023-08-25 19:06:11,329 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2045 transitions. [2023-08-25 19:06:11,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2045 transitions. [2023-08-25 19:06:11,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:11,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2045 transitions. [2023-08-25 19:06:11,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 409.0) internal successors, (2045), 5 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:11,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:11,336 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:11,336 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 520 flow. Second operand 5 states and 2045 transitions. [2023-08-25 19:06:11,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 207 transitions, 1249 flow [2023-08-25 19:06:11,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 207 transitions, 1200 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-08-25 19:06:11,396 INFO L231 Difference]: Finished difference. Result has 115 places, 116 transitions, 538 flow [2023-08-25 19:06:11,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=538, PETRI_PLACES=115, PETRI_TRANSITIONS=116} [2023-08-25 19:06:11,396 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 1 predicate places. [2023-08-25 19:06:11,397 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 116 transitions, 538 flow [2023-08-25 19:06:11,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 387.5) internal successors, (1550), 4 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:11,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:11,397 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] [2023-08-25 19:06:11,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:06:11,397 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:11,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:11,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1185549966, now seen corresponding path program 1 times [2023-08-25 19:06:11,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:11,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892209511] [2023-08-25 19:06:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:11,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:11,439 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 19:06:11,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:11,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892209511] [2023-08-25 19:06:11,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892209511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:11,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:11,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:11,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657887668] [2023-08-25 19:06:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:11,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:11,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:11,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:11,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:11,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 821 [2023-08-25 19:06:11,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 116 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 397.3333333333333) internal successors, (1192), 3 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:11,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:11,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 821 [2023-08-25 19:06:11,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:14,271 INFO L124 PetriNetUnfolderBase]: 20687/34060 cut-off events. [2023-08-25 19:06:14,272 INFO L125 PetriNetUnfolderBase]: For 26939/27546 co-relation queries the response was YES. [2023-08-25 19:06:14,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95761 conditions, 34060 events. 20687/34060 cut-off events. For 26939/27546 co-relation queries the response was YES. Maximal size of possible extension queue 1314. Compared 281141 event pairs, 12697 based on Foata normal form. 6/30243 useless extension candidates. Maximal degree in co-relation 95738. Up to 20810 conditions per place. [2023-08-25 19:06:14,631 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 129 selfloop transitions, 3 changer transitions 12/180 dead transitions. [2023-08-25 19:06:14,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 180 transitions, 1133 flow [2023-08-25 19:06:14,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:14,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1262 transitions. [2023-08-25 19:06:14,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5123832724319936 [2023-08-25 19:06:14,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1262 transitions. [2023-08-25 19:06:14,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1262 transitions. [2023-08-25 19:06:14,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:14,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1262 transitions. [2023-08-25 19:06:14,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:14,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:14,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:14,646 INFO L175 Difference]: Start difference. First operand has 115 places, 116 transitions, 538 flow. Second operand 3 states and 1262 transitions. [2023-08-25 19:06:14,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 180 transitions, 1133 flow [2023-08-25 19:06:14,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 180 transitions, 1113 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:14,711 INFO L231 Difference]: Finished difference. Result has 117 places, 115 transitions, 533 flow [2023-08-25 19:06:14,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=117, PETRI_TRANSITIONS=115} [2023-08-25 19:06:14,711 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 3 predicate places. [2023-08-25 19:06:14,712 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 115 transitions, 533 flow [2023-08-25 19:06:14,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 397.3333333333333) internal successors, (1192), 3 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:14,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:14,712 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] [2023-08-25 19:06:14,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:06:14,712 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:14,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1962122428, now seen corresponding path program 2 times [2023-08-25 19:06:14,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:14,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706584228] [2023-08-25 19:06:14,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:14,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:14,752 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 19:06:14,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:14,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706584228] [2023-08-25 19:06:14,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706584228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:14,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:14,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:14,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831896927] [2023-08-25 19:06:14,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:14,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:14,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:14,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:14,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:14,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 821 [2023-08-25 19:06:14,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 397.3333333333333) internal successors, (1192), 3 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:14,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:14,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 821 [2023-08-25 19:06:14,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:16,811 INFO L124 PetriNetUnfolderBase]: 14764/24346 cut-off events. [2023-08-25 19:06:16,812 INFO L125 PetriNetUnfolderBase]: For 19198/19290 co-relation queries the response was YES. [2023-08-25 19:06:16,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69377 conditions, 24346 events. 14764/24346 cut-off events. For 19198/19290 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 190249 event pairs, 7583 based on Foata normal form. 841/23241 useless extension candidates. Maximal degree in co-relation 69352. Up to 20758 conditions per place. [2023-08-25 19:06:16,999 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 99 selfloop transitions, 3 changer transitions 8/144 dead transitions. [2023-08-25 19:06:16,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 144 transitions, 885 flow [2023-08-25 19:06:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:17,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:17,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1243 transitions. [2023-08-25 19:06:17,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5046691027202599 [2023-08-25 19:06:17,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1243 transitions. [2023-08-25 19:06:17,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1243 transitions. [2023-08-25 19:06:17,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:17,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1243 transitions. [2023-08-25 19:06:17,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 414.3333333333333) internal successors, (1243), 3 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:17,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:17,006 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:17,006 INFO L175 Difference]: Start difference. First operand has 117 places, 115 transitions, 533 flow. Second operand 3 states and 1243 transitions. [2023-08-25 19:06:17,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 144 transitions, 885 flow [2023-08-25 19:06:17,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 144 transitions, 876 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:17,035 INFO L231 Difference]: Finished difference. Result has 118 places, 112 transitions, 530 flow [2023-08-25 19:06:17,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=118, PETRI_TRANSITIONS=112} [2023-08-25 19:06:17,036 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 4 predicate places. [2023-08-25 19:06:17,036 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 112 transitions, 530 flow [2023-08-25 19:06:17,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 397.3333333333333) internal successors, (1192), 3 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:17,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:17,037 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] [2023-08-25 19:06:17,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:06:17,037 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:17,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:17,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1127602699, now seen corresponding path program 1 times [2023-08-25 19:06:17,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:17,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003757573] [2023-08-25 19:06:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:17,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:17,515 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 19:06:17,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:17,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003757573] [2023-08-25 19:06:17,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003757573] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:17,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:17,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:17,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001891953] [2023-08-25 19:06:17,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:17,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:17,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:17,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:17,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:17,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 821 [2023-08-25 19:06:17,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 112 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:17,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:17,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 821 [2023-08-25 19:06:17,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:19,922 INFO L124 PetriNetUnfolderBase]: 17138/27890 cut-off events. [2023-08-25 19:06:19,922 INFO L125 PetriNetUnfolderBase]: For 20700/21268 co-relation queries the response was YES. [2023-08-25 19:06:20,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79967 conditions, 27890 events. 17138/27890 cut-off events. For 20700/21268 co-relation queries the response was YES. Maximal size of possible extension queue 1160. Compared 223129 event pairs, 9623 based on Foata normal form. 104/25179 useless extension candidates. Maximal degree in co-relation 79943. Up to 18225 conditions per place. [2023-08-25 19:06:20,117 INFO L140 encePairwiseOnDemand]: 816/821 looper letters, 117 selfloop transitions, 6 changer transitions 15/172 dead transitions. [2023-08-25 19:06:20,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 172 transitions, 1051 flow [2023-08-25 19:06:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:06:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:06:20,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1655 transitions. [2023-08-25 19:06:20,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5039585870889159 [2023-08-25 19:06:20,120 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1655 transitions. [2023-08-25 19:06:20,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1655 transitions. [2023-08-25 19:06:20,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:20,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1655 transitions. [2023-08-25 19:06:20,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 413.75) internal successors, (1655), 4 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:20,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 821.0) internal successors, (4105), 5 states have internal predecessors, (4105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:20,127 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 821.0) internal successors, (4105), 5 states have internal predecessors, (4105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:20,127 INFO L175 Difference]: Start difference. First operand has 118 places, 112 transitions, 530 flow. Second operand 4 states and 1655 transitions. [2023-08-25 19:06:20,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 172 transitions, 1051 flow [2023-08-25 19:06:20,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 172 transitions, 1028 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:20,150 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 550 flow [2023-08-25 19:06:20,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=550, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2023-08-25 19:06:20,151 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2023-08-25 19:06:20,151 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 550 flow [2023-08-25 19:06:20,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:20,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:20,151 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] [2023-08-25 19:06:20,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:06:20,152 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:20,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:20,152 INFO L85 PathProgramCache]: Analyzing trace with hash -785918197, now seen corresponding path program 2 times [2023-08-25 19:06:20,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:20,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724520335] [2023-08-25 19:06:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:20,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:20,324 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 19:06:20,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:20,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724520335] [2023-08-25 19:06:20,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724520335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:20,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:20,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:20,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785746988] [2023-08-25 19:06:20,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:20,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:20,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:20,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:20,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:20,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 821 [2023-08-25 19:06:20,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 550 flow. Second operand has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:20,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:20,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 821 [2023-08-25 19:06:20,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:23,051 INFO L124 PetriNetUnfolderBase]: 18524/30715 cut-off events. [2023-08-25 19:06:23,051 INFO L125 PetriNetUnfolderBase]: For 25699/26140 co-relation queries the response was YES. [2023-08-25 19:06:23,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87048 conditions, 30715 events. 18524/30715 cut-off events. For 25699/26140 co-relation queries the response was YES. Maximal size of possible extension queue 1295. Compared 253638 event pairs, 11203 based on Foata normal form. 155/27998 useless extension candidates. Maximal degree in co-relation 87022. Up to 21165 conditions per place. [2023-08-25 19:06:23,283 INFO L140 encePairwiseOnDemand]: 816/821 looper letters, 112 selfloop transitions, 8 changer transitions 14/168 dead transitions. [2023-08-25 19:06:23,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 168 transitions, 1032 flow [2023-08-25 19:06:23,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:06:23,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:06:23,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1653 transitions. [2023-08-25 19:06:23,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5033495736906212 [2023-08-25 19:06:23,286 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1653 transitions. [2023-08-25 19:06:23,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1653 transitions. [2023-08-25 19:06:23,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:23,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1653 transitions. [2023-08-25 19:06:23,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 413.25) internal successors, (1653), 4 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:23,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 821.0) internal successors, (4105), 5 states have internal predecessors, (4105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:23,291 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 821.0) internal successors, (4105), 5 states have internal predecessors, (4105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:23,291 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 550 flow. Second operand 4 states and 1653 transitions. [2023-08-25 19:06:23,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 168 transitions, 1032 flow [2023-08-25 19:06:23,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 168 transitions, 1026 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:23,407 INFO L231 Difference]: Finished difference. Result has 123 places, 116 transitions, 590 flow [2023-08-25 19:06:23,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=590, PETRI_PLACES=123, PETRI_TRANSITIONS=116} [2023-08-25 19:06:23,407 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 9 predicate places. [2023-08-25 19:06:23,407 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 116 transitions, 590 flow [2023-08-25 19:06:23,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:23,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:23,407 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] [2023-08-25 19:06:23,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:06:23,408 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:23,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash -674760188, now seen corresponding path program 1 times [2023-08-25 19:06:23,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:23,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171478257] [2023-08-25 19:06:23,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:23,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:23,440 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 19:06:23,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:23,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171478257] [2023-08-25 19:06:23,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171478257] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:23,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:23,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:23,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549278294] [2023-08-25 19:06:23,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:23,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:23,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:23,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:23,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:23,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 821 [2023-08-25 19:06:23,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 116 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 397.0) internal successors, (1191), 3 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:23,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:23,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 821 [2023-08-25 19:06:23,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:25,958 INFO L124 PetriNetUnfolderBase]: 16675/27572 cut-off events. [2023-08-25 19:06:25,958 INFO L125 PetriNetUnfolderBase]: For 28130/28544 co-relation queries the response was YES. [2023-08-25 19:06:26,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80263 conditions, 27572 events. 16675/27572 cut-off events. For 28130/28544 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 222422 event pairs, 12357 based on Foata normal form. 111/25015 useless extension candidates. Maximal degree in co-relation 80235. Up to 24029 conditions per place. [2023-08-25 19:06:26,208 INFO L140 encePairwiseOnDemand]: 819/821 looper letters, 98 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2023-08-25 19:06:26,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 134 transitions, 886 flow [2023-08-25 19:06:26,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1229 transitions. [2023-08-25 19:06:26,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4989849776695087 [2023-08-25 19:06:26,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1229 transitions. [2023-08-25 19:06:26,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1229 transitions. [2023-08-25 19:06:26,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:26,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1229 transitions. [2023-08-25 19:06:26,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.6666666666667) internal successors, (1229), 3 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:26,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:26,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:26,215 INFO L175 Difference]: Start difference. First operand has 123 places, 116 transitions, 590 flow. Second operand 3 states and 1229 transitions. [2023-08-25 19:06:26,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 134 transitions, 886 flow [2023-08-25 19:06:26,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 134 transitions, 876 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:26,593 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 568 flow [2023-08-25 19:06:26,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2023-08-25 19:06:26,593 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 9 predicate places. [2023-08-25 19:06:26,594 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 568 flow [2023-08-25 19:06:26,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 397.0) internal successors, (1191), 3 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:26,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:26,594 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] [2023-08-25 19:06:26,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:06:26,594 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:26,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:26,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1036575893, now seen corresponding path program 1 times [2023-08-25 19:06:26,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:26,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470960519] [2023-08-25 19:06:26,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:26,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:26,645 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 19:06:26,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:26,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470960519] [2023-08-25 19:06:26,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470960519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:26,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:26,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:26,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066447069] [2023-08-25 19:06:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:26,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:26,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:26,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:26,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:26,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 821 [2023-08-25 19:06:26,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 568 flow. Second operand has 3 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:26,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:26,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 821 [2023-08-25 19:06:26,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:29,337 INFO L124 PetriNetUnfolderBase]: 17823/29550 cut-off events. [2023-08-25 19:06:29,338 INFO L125 PetriNetUnfolderBase]: For 24834/25461 co-relation queries the response was YES. [2023-08-25 19:06:29,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84395 conditions, 29550 events. 17823/29550 cut-off events. For 24834/25461 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 242877 event pairs, 11374 based on Foata normal form. 394/27205 useless extension candidates. Maximal degree in co-relation 84367. Up to 20230 conditions per place. [2023-08-25 19:06:29,626 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 118 selfloop transitions, 6 changer transitions 3/161 dead transitions. [2023-08-25 19:06:29,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 161 transitions, 1059 flow [2023-08-25 19:06:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1252 transitions. [2023-08-25 19:06:29,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083231831100284 [2023-08-25 19:06:29,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1252 transitions. [2023-08-25 19:06:29,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1252 transitions. [2023-08-25 19:06:29,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:29,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1252 transitions. [2023-08-25 19:06:29,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:29,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:29,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:29,635 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 568 flow. Second operand 3 states and 1252 transitions. [2023-08-25 19:06:29,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 161 transitions, 1059 flow [2023-08-25 19:06:30,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 161 transitions, 1056 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:30,192 INFO L231 Difference]: Finished difference. Result has 126 places, 115 transitions, 620 flow [2023-08-25 19:06:30,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=126, PETRI_TRANSITIONS=115} [2023-08-25 19:06:30,193 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 12 predicate places. [2023-08-25 19:06:30,193 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 115 transitions, 620 flow [2023-08-25 19:06:30,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:30,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:30,193 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 19:06:30,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:06:30,193 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:30,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:30,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1689999061, now seen corresponding path program 2 times [2023-08-25 19:06:30,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:30,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707716717] [2023-08-25 19:06:30,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:30,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:30,229 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 19:06:30,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:30,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707716717] [2023-08-25 19:06:30,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707716717] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:30,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:30,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:30,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407726568] [2023-08-25 19:06:30,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:30,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:30,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:30,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:30,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:30,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 821 [2023-08-25 19:06:30,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 115 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:30,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:30,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 821 [2023-08-25 19:06:30,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:32,421 INFO L124 PetriNetUnfolderBase]: 15818/26519 cut-off events. [2023-08-25 19:06:32,421 INFO L125 PetriNetUnfolderBase]: For 30344/30384 co-relation queries the response was YES. [2023-08-25 19:06:32,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75959 conditions, 26519 events. 15818/26519 cut-off events. For 30344/30384 co-relation queries the response was YES. Maximal size of possible extension queue 1004. Compared 214616 event pairs, 4378 based on Foata normal form. 733/25127 useless extension candidates. Maximal degree in co-relation 75930. Up to 20637 conditions per place. [2023-08-25 19:06:32,662 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 106 selfloop transitions, 3 changer transitions 4/147 dead transitions. [2023-08-25 19:06:32,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 147 transitions, 980 flow [2023-08-25 19:06:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1239 transitions. [2023-08-25 19:06:32,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5030450669914738 [2023-08-25 19:06:32,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1239 transitions. [2023-08-25 19:06:32,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1239 transitions. [2023-08-25 19:06:32,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:32,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1239 transitions. [2023-08-25 19:06:32,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:32,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:32,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:32,669 INFO L175 Difference]: Start difference. First operand has 126 places, 115 transitions, 620 flow. Second operand 3 states and 1239 transitions. [2023-08-25 19:06:32,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 147 transitions, 980 flow [2023-08-25 19:06:32,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 147 transitions, 972 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:32,902 INFO L231 Difference]: Finished difference. Result has 129 places, 116 transitions, 627 flow [2023-08-25 19:06:32,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=627, PETRI_PLACES=129, PETRI_TRANSITIONS=116} [2023-08-25 19:06:32,902 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 15 predicate places. [2023-08-25 19:06:32,902 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 116 transitions, 627 flow [2023-08-25 19:06:32,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:32,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:32,903 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] [2023-08-25 19:06:32,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 19:06:32,903 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:32,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:32,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1513025272, now seen corresponding path program 1 times [2023-08-25 19:06:32,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:32,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324003023] [2023-08-25 19:06:32,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:32,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:33,474 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 19:06:33,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:33,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324003023] [2023-08-25 19:06:33,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324003023] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:33,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:33,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772187453] [2023-08-25 19:06:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:33,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:33,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:33,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:33,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 821 [2023-08-25 19:06:33,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 116 transitions, 627 flow. Second operand has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:33,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:33,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 821 [2023-08-25 19:06:33,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:35,999 INFO L124 PetriNetUnfolderBase]: 15678/25621 cut-off events. [2023-08-25 19:06:35,999 INFO L125 PetriNetUnfolderBase]: For 24172/24577 co-relation queries the response was YES. [2023-08-25 19:06:36,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75615 conditions, 25621 events. 15678/25621 cut-off events. For 24172/24577 co-relation queries the response was YES. Maximal size of possible extension queue 1005. Compared 202080 event pairs, 3785 based on Foata normal form. 236/23466 useless extension candidates. Maximal degree in co-relation 75585. Up to 14634 conditions per place. [2023-08-25 19:06:36,206 INFO L140 encePairwiseOnDemand]: 809/821 looper letters, 147 selfloop transitions, 13 changer transitions 13/207 dead transitions. [2023-08-25 19:06:36,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 207 transitions, 1371 flow [2023-08-25 19:06:36,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2040 transitions. [2023-08-25 19:06:36,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49695493300852617 [2023-08-25 19:06:36,209 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2040 transitions. [2023-08-25 19:06:36,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2040 transitions. [2023-08-25 19:06:36,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:36,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2040 transitions. [2023-08-25 19:06:36,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:36,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:36,216 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:36,216 INFO L175 Difference]: Start difference. First operand has 129 places, 116 transitions, 627 flow. Second operand 5 states and 2040 transitions. [2023-08-25 19:06:36,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 207 transitions, 1371 flow [2023-08-25 19:06:36,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 207 transitions, 1352 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:36,463 INFO L231 Difference]: Finished difference. Result has 134 places, 117 transitions, 656 flow [2023-08-25 19:06:36,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=656, PETRI_PLACES=134, PETRI_TRANSITIONS=117} [2023-08-25 19:06:36,464 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 20 predicate places. [2023-08-25 19:06:36,464 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 117 transitions, 656 flow [2023-08-25 19:06:36,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:36,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:36,464 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] [2023-08-25 19:06:36,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 19:06:36,464 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:36,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:36,465 INFO L85 PathProgramCache]: Analyzing trace with hash -290152393, now seen corresponding path program 1 times [2023-08-25 19:06:36,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:36,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228433684] [2023-08-25 19:06:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:36,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:36,504 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 19:06:36,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:36,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228433684] [2023-08-25 19:06:36,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228433684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:36,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:36,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:36,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861461019] [2023-08-25 19:06:36,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:36,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:36,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:36,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:36,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:36,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 821 [2023-08-25 19:06:36,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 117 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:36,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:36,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 821 [2023-08-25 19:06:36,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:39,458 INFO L124 PetriNetUnfolderBase]: 15573/25926 cut-off events. [2023-08-25 19:06:39,458 INFO L125 PetriNetUnfolderBase]: For 29014/29127 co-relation queries the response was YES. [2023-08-25 19:06:39,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77670 conditions, 25926 events. 15573/25926 cut-off events. For 29014/29127 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 208192 event pairs, 8636 based on Foata normal form. 14/23845 useless extension candidates. Maximal degree in co-relation 77638. Up to 13765 conditions per place. [2023-08-25 19:06:39,631 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 132 selfloop transitions, 3 changer transitions 6/175 dead transitions. [2023-08-25 19:06:39,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 175 transitions, 1279 flow [2023-08-25 19:06:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:39,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1256 transitions. [2023-08-25 19:06:39,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5099472188388144 [2023-08-25 19:06:39,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1256 transitions. [2023-08-25 19:06:39,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1256 transitions. [2023-08-25 19:06:39,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:39,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1256 transitions. [2023-08-25 19:06:39,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.6666666666667) internal successors, (1256), 3 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:39,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:39,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:39,637 INFO L175 Difference]: Start difference. First operand has 134 places, 117 transitions, 656 flow. Second operand 3 states and 1256 transitions. [2023-08-25 19:06:39,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 175 transitions, 1279 flow [2023-08-25 19:06:39,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 175 transitions, 1260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:39,830 INFO L231 Difference]: Finished difference. Result has 137 places, 120 transitions, 680 flow [2023-08-25 19:06:39,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=137, PETRI_TRANSITIONS=120} [2023-08-25 19:06:39,831 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 23 predicate places. [2023-08-25 19:06:39,831 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 120 transitions, 680 flow [2023-08-25 19:06:39,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:39,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:39,831 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] [2023-08-25 19:06:39,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 19:06:39,832 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:39,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash 870760335, now seen corresponding path program 2 times [2023-08-25 19:06:39,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:39,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566607987] [2023-08-25 19:06:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:39,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:39,867 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 19:06:39,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:39,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566607987] [2023-08-25 19:06:39,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566607987] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:39,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:39,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:39,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958669231] [2023-08-25 19:06:39,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:39,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:39,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:39,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:39,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:39,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 821 [2023-08-25 19:06:39,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 120 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:39,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:39,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 821 [2023-08-25 19:06:39,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:41,728 INFO L124 PetriNetUnfolderBase]: 12054/20612 cut-off events. [2023-08-25 19:06:41,728 INFO L125 PetriNetUnfolderBase]: For 24265/24317 co-relation queries the response was YES. [2023-08-25 19:06:41,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64055 conditions, 20612 events. 12054/20612 cut-off events. For 24265/24317 co-relation queries the response was YES. Maximal size of possible extension queue 776. Compared 164909 event pairs, 5931 based on Foata normal form. 418/20072 useless extension candidates. Maximal degree in co-relation 64021. Up to 11464 conditions per place. [2023-08-25 19:06:41,915 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 126 selfloop transitions, 3 changer transitions 4/167 dead transitions. [2023-08-25 19:06:41,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 167 transitions, 1217 flow [2023-08-25 19:06:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:41,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:41,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1250 transitions. [2023-08-25 19:06:41,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5075111652456354 [2023-08-25 19:06:41,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1250 transitions. [2023-08-25 19:06:41,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1250 transitions. [2023-08-25 19:06:41,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:41,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1250 transitions. [2023-08-25 19:06:41,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:41,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:41,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:41,921 INFO L175 Difference]: Start difference. First operand has 137 places, 120 transitions, 680 flow. Second operand 3 states and 1250 transitions. [2023-08-25 19:06:41,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 167 transitions, 1217 flow [2023-08-25 19:06:42,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 167 transitions, 1214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:42,090 INFO L231 Difference]: Finished difference. Result has 140 places, 123 transitions, 718 flow [2023-08-25 19:06:42,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=140, PETRI_TRANSITIONS=123} [2023-08-25 19:06:42,091 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 26 predicate places. [2023-08-25 19:06:42,091 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 123 transitions, 718 flow [2023-08-25 19:06:42,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:42,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:42,091 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] [2023-08-25 19:06:42,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 19:06:42,091 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:42,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:42,092 INFO L85 PathProgramCache]: Analyzing trace with hash 526075741, now seen corresponding path program 1 times [2023-08-25 19:06:42,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:42,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870434514] [2023-08-25 19:06:42,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:42,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:42,200 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 19:06:42,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:42,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870434514] [2023-08-25 19:06:42,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870434514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:42,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:42,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:42,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887684642] [2023-08-25 19:06:42,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:42,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:42,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:42,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:42,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:42,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 821 [2023-08-25 19:06:42,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 123 transitions, 718 flow. Second operand has 4 states, 4 states have (on average 393.0) internal successors, (1572), 4 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:42,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:42,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 821 [2023-08-25 19:06:42,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:44,917 INFO L124 PetriNetUnfolderBase]: 12827/21726 cut-off events. [2023-08-25 19:06:44,917 INFO L125 PetriNetUnfolderBase]: For 26712/26819 co-relation queries the response was YES. [2023-08-25 19:06:44,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69019 conditions, 21726 events. 12827/21726 cut-off events. For 26712/26819 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 175149 event pairs, 5565 based on Foata normal form. 8/20671 useless extension candidates. Maximal degree in co-relation 68984. Up to 11077 conditions per place. [2023-08-25 19:06:45,044 INFO L140 encePairwiseOnDemand]: 814/821 looper letters, 173 selfloop transitions, 8 changer transitions 22/237 dead transitions. [2023-08-25 19:06:45,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 237 transitions, 1783 flow [2023-08-25 19:06:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:06:45,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:06:45,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1665 transitions. [2023-08-25 19:06:45,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070036540803897 [2023-08-25 19:06:45,047 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1665 transitions. [2023-08-25 19:06:45,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1665 transitions. [2023-08-25 19:06:45,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:45,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1665 transitions. [2023-08-25 19:06:45,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 416.25) internal successors, (1665), 4 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:45,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 821.0) internal successors, (4105), 5 states have internal predecessors, (4105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:45,051 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 821.0) internal successors, (4105), 5 states have internal predecessors, (4105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:45,051 INFO L175 Difference]: Start difference. First operand has 140 places, 123 transitions, 718 flow. Second operand 4 states and 1665 transitions. [2023-08-25 19:06:45,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 237 transitions, 1783 flow [2023-08-25 19:06:45,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 237 transitions, 1766 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:45,178 INFO L231 Difference]: Finished difference. Result has 145 places, 130 transitions, 781 flow [2023-08-25 19:06:45,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=781, PETRI_PLACES=145, PETRI_TRANSITIONS=130} [2023-08-25 19:06:45,179 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 31 predicate places. [2023-08-25 19:06:45,179 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 130 transitions, 781 flow [2023-08-25 19:06:45,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 393.0) internal successors, (1572), 4 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:45,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:45,179 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] [2023-08-25 19:06:45,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 19:06:45,180 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:45,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:45,180 INFO L85 PathProgramCache]: Analyzing trace with hash -660143015, now seen corresponding path program 2 times [2023-08-25 19:06:45,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:45,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256970937] [2023-08-25 19:06:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:45,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:45,282 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 19:06:45,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:45,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256970937] [2023-08-25 19:06:45,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256970937] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:45,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:45,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:45,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42006013] [2023-08-25 19:06:45,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:45,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:45,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:45,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:45,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 821 [2023-08-25 19:06:45,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 130 transitions, 781 flow. Second operand has 4 states, 4 states have (on average 393.0) internal successors, (1572), 4 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:45,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:45,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 821 [2023-08-25 19:06:45,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:47,412 INFO L124 PetriNetUnfolderBase]: 11589/20375 cut-off events. [2023-08-25 19:06:47,413 INFO L125 PetriNetUnfolderBase]: For 29343/29536 co-relation queries the response was YES. [2023-08-25 19:06:47,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66520 conditions, 20375 events. 11589/20375 cut-off events. For 29343/29536 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 167609 event pairs, 3669 based on Foata normal form. 337/20054 useless extension candidates. Maximal degree in co-relation 66483. Up to 7712 conditions per place. [2023-08-25 19:06:47,557 INFO L140 encePairwiseOnDemand]: 815/821 looper letters, 136 selfloop transitions, 5 changer transitions 73/248 dead transitions. [2023-08-25 19:06:47,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 248 transitions, 1883 flow [2023-08-25 19:06:47,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:47,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2061 transitions. [2023-08-25 19:06:47,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020706455542022 [2023-08-25 19:06:47,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2061 transitions. [2023-08-25 19:06:47,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2061 transitions. [2023-08-25 19:06:47,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:47,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2061 transitions. [2023-08-25 19:06:47,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 412.2) internal successors, (2061), 5 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:47,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:47,566 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:47,566 INFO L175 Difference]: Start difference. First operand has 145 places, 130 transitions, 781 flow. Second operand 5 states and 2061 transitions. [2023-08-25 19:06:47,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 248 transitions, 1883 flow [2023-08-25 19:06:47,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 248 transitions, 1877 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:47,715 INFO L231 Difference]: Finished difference. Result has 152 places, 131 transitions, 816 flow [2023-08-25 19:06:47,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=816, PETRI_PLACES=152, PETRI_TRANSITIONS=131} [2023-08-25 19:06:47,715 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 38 predicate places. [2023-08-25 19:06:47,716 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 131 transitions, 816 flow [2023-08-25 19:06:47,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 393.0) internal successors, (1572), 4 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:47,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:47,716 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] [2023-08-25 19:06:47,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 19:06:47,716 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:47,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:47,717 INFO L85 PathProgramCache]: Analyzing trace with hash -329622244, now seen corresponding path program 2 times [2023-08-25 19:06:47,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:47,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786973198] [2023-08-25 19:06:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:47,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:48,041 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 19:06:48,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:48,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786973198] [2023-08-25 19:06:48,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786973198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:48,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:48,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:48,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579054170] [2023-08-25 19:06:48,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:48,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:06:48,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:48,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:06:48,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:06:48,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 821 [2023-08-25 19:06:48,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 131 transitions, 816 flow. Second operand has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:48,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:48,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 821 [2023-08-25 19:06:48,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:49,824 INFO L124 PetriNetUnfolderBase]: 9570/16221 cut-off events. [2023-08-25 19:06:49,824 INFO L125 PetriNetUnfolderBase]: For 28334/28650 co-relation queries the response was YES. [2023-08-25 19:06:49,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55995 conditions, 16221 events. 9570/16221 cut-off events. For 28334/28650 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 126714 event pairs, 2030 based on Foata normal form. 235/15693 useless extension candidates. Maximal degree in co-relation 55955. Up to 9017 conditions per place. [2023-08-25 19:06:49,921 INFO L140 encePairwiseOnDemand]: 809/821 looper letters, 152 selfloop transitions, 14 changer transitions 31/231 dead transitions. [2023-08-25 19:06:49,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 231 transitions, 1793 flow [2023-08-25 19:06:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:06:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:06:49,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2034 transitions. [2023-08-25 19:06:49,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4954933008526188 [2023-08-25 19:06:49,924 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2034 transitions. [2023-08-25 19:06:49,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2034 transitions. [2023-08-25 19:06:49,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:49,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2034 transitions. [2023-08-25 19:06:49,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 406.8) internal successors, (2034), 5 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:49,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:49,930 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 821.0) internal successors, (4926), 6 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:49,930 INFO L175 Difference]: Start difference. First operand has 152 places, 131 transitions, 816 flow. Second operand 5 states and 2034 transitions. [2023-08-25 19:06:49,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 231 transitions, 1793 flow [2023-08-25 19:06:50,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 231 transitions, 1764 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:50,063 INFO L231 Difference]: Finished difference. Result has 154 places, 123 transitions, 783 flow [2023-08-25 19:06:50,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=783, PETRI_PLACES=154, PETRI_TRANSITIONS=123} [2023-08-25 19:06:50,064 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 40 predicate places. [2023-08-25 19:06:50,064 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 123 transitions, 783 flow [2023-08-25 19:06:50,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:50,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:50,064 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] [2023-08-25 19:06:50,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 19:06:50,064 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:50,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:50,065 INFO L85 PathProgramCache]: Analyzing trace with hash 706035778, now seen corresponding path program 1 times [2023-08-25 19:06:50,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:50,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679763908] [2023-08-25 19:06:50,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:50,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:50,101 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 19:06:50,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:50,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679763908] [2023-08-25 19:06:50,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679763908] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:50,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:50,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:50,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109671070] [2023-08-25 19:06:50,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:50,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:50,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:50,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:50,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:50,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 821 [2023-08-25 19:06:50,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 123 transitions, 783 flow. Second operand has 3 states, 3 states have (on average 398.6666666666667) internal successors, (1196), 3 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:50,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:50,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 821 [2023-08-25 19:06:50,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:51,742 INFO L124 PetriNetUnfolderBase]: 7849/13997 cut-off events. [2023-08-25 19:06:51,742 INFO L125 PetriNetUnfolderBase]: For 25342/25398 co-relation queries the response was YES. [2023-08-25 19:06:51,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48052 conditions, 13997 events. 7849/13997 cut-off events. For 25342/25398 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 110147 event pairs, 4679 based on Foata normal form. 60/13524 useless extension candidates. Maximal degree in co-relation 48012. Up to 9989 conditions per place. [2023-08-25 19:06:51,831 INFO L140 encePairwiseOnDemand]: 819/821 looper letters, 104 selfloop transitions, 2 changer transitions 11/151 dead transitions. [2023-08-25 19:06:51,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 151 transitions, 1168 flow [2023-08-25 19:06:51,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1234 transitions. [2023-08-25 19:06:51,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010150223304912 [2023-08-25 19:06:51,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1234 transitions. [2023-08-25 19:06:51,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1234 transitions. [2023-08-25 19:06:51,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:51,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1234 transitions. [2023-08-25 19:06:51,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:51,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:51,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:51,839 INFO L175 Difference]: Start difference. First operand has 154 places, 123 transitions, 783 flow. Second operand 3 states and 1234 transitions. [2023-08-25 19:06:51,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 151 transitions, 1168 flow [2023-08-25 19:06:51,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 151 transitions, 1145 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 19:06:51,963 INFO L231 Difference]: Finished difference. Result has 152 places, 120 transitions, 740 flow [2023-08-25 19:06:51,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=152, PETRI_TRANSITIONS=120} [2023-08-25 19:06:51,964 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 38 predicate places. [2023-08-25 19:06:51,964 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 120 transitions, 740 flow [2023-08-25 19:06:51,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 398.6666666666667) internal successors, (1196), 3 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:51,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:51,964 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, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:51,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 19:06:51,964 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:51,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:51,965 INFO L85 PathProgramCache]: Analyzing trace with hash 255263899, now seen corresponding path program 1 times [2023-08-25 19:06:51,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:51,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356923814] [2023-08-25 19:06:51,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:51,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:52,006 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 19:06:52,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:52,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356923814] [2023-08-25 19:06:52,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356923814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:52,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:52,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:52,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337177390] [2023-08-25 19:06:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:52,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:52,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:52,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:52,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:52,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 821 [2023-08-25 19:06:52,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 120 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:52,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:52,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 821 [2023-08-25 19:06:52,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:53,376 INFO L124 PetriNetUnfolderBase]: 7403/13165 cut-off events. [2023-08-25 19:06:53,377 INFO L125 PetriNetUnfolderBase]: For 21886/22035 co-relation queries the response was YES. [2023-08-25 19:06:53,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45288 conditions, 13165 events. 7403/13165 cut-off events. For 21886/22035 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 103026 event pairs, 3862 based on Foata normal form. 162/12772 useless extension candidates. Maximal degree in co-relation 45249. Up to 8360 conditions per place. [2023-08-25 19:06:53,477 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 122 selfloop transitions, 4 changer transitions 3/163 dead transitions. [2023-08-25 19:06:53,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 163 transitions, 1239 flow [2023-08-25 19:06:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1244 transitions. [2023-08-25 19:06:53,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050751116524563 [2023-08-25 19:06:53,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1244 transitions. [2023-08-25 19:06:53,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1244 transitions. [2023-08-25 19:06:53,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:53,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1244 transitions. [2023-08-25 19:06:53,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:53,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:53,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:53,483 INFO L175 Difference]: Start difference. First operand has 152 places, 120 transitions, 740 flow. Second operand 3 states and 1244 transitions. [2023-08-25 19:06:53,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 163 transitions, 1239 flow [2023-08-25 19:06:53,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 163 transitions, 1219 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-25 19:06:53,610 INFO L231 Difference]: Finished difference. Result has 146 places, 120 transitions, 748 flow [2023-08-25 19:06:53,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=146, PETRI_TRANSITIONS=120} [2023-08-25 19:06:53,610 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 32 predicate places. [2023-08-25 19:06:53,611 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 120 transitions, 748 flow [2023-08-25 19:06:53,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:53,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:53,611 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, 1, 1, 1] [2023-08-25 19:06:53,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-25 19:06:53,611 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:53,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1248650631, now seen corresponding path program 1 times [2023-08-25 19:06:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:53,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395311785] [2023-08-25 19:06:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:53,649 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 19:06:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395311785] [2023-08-25 19:06:53,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395311785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:53,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:53,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:06:53,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748600124] [2023-08-25 19:06:53,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:53,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:06:53,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:06:53,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:06:53,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 821 [2023-08-25 19:06:53,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 120 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:53,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:53,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 821 [2023-08-25 19:06:53,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:54,892 INFO L124 PetriNetUnfolderBase]: 6885/12593 cut-off events. [2023-08-25 19:06:54,892 INFO L125 PetriNetUnfolderBase]: For 20104/20142 co-relation queries the response was YES. [2023-08-25 19:06:54,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44234 conditions, 12593 events. 6885/12593 cut-off events. For 20104/20142 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 100442 event pairs, 3139 based on Foata normal form. 146/11958 useless extension candidates. Maximal degree in co-relation 44198. Up to 6909 conditions per place. [2023-08-25 19:06:54,990 INFO L140 encePairwiseOnDemand]: 817/821 looper letters, 127 selfloop transitions, 4 changer transitions 3/168 dead transitions. [2023-08-25 19:06:54,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 168 transitions, 1296 flow [2023-08-25 19:06:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:06:54,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:06:54,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1241 transitions. [2023-08-25 19:06:54,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5038570848558668 [2023-08-25 19:06:54,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1241 transitions. [2023-08-25 19:06:54,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1241 transitions. [2023-08-25 19:06:54,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:54,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1241 transitions. [2023-08-25 19:06:54,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:54,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:54,994 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 821.0) internal successors, (3284), 4 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:54,994 INFO L175 Difference]: Start difference. First operand has 146 places, 120 transitions, 748 flow. Second operand 3 states and 1241 transitions. [2023-08-25 19:06:54,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 168 transitions, 1296 flow [2023-08-25 19:06:55,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 168 transitions, 1292 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:55,097 INFO L231 Difference]: Finished difference. Result has 149 places, 124 transitions, 802 flow [2023-08-25 19:06:55,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=802, PETRI_PLACES=149, PETRI_TRANSITIONS=124} [2023-08-25 19:06:55,098 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 35 predicate places. [2023-08-25 19:06:55,098 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 124 transitions, 802 flow [2023-08-25 19:06:55,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:55,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:55,098 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:55,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-25 19:06:55,098 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:55,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:55,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1152978687, now seen corresponding path program 1 times [2023-08-25 19:06:55,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:55,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235922044] [2023-08-25 19:06:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:55,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:55,833 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 19:06:55,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235922044] [2023-08-25 19:06:55,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235922044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:55,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:55,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279380811] [2023-08-25 19:06:55,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:55,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:55,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:55,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:55,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:55,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 821 [2023-08-25 19:06:55,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 124 transitions, 802 flow. Second operand has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:55,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:55,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 821 [2023-08-25 19:06:55,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:57,199 INFO L124 PetriNetUnfolderBase]: 7019/12330 cut-off events. [2023-08-25 19:06:57,199 INFO L125 PetriNetUnfolderBase]: For 21825/21991 co-relation queries the response was YES. [2023-08-25 19:06:57,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45145 conditions, 12330 events. 7019/12330 cut-off events. For 21825/21991 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 94228 event pairs, 1442 based on Foata normal form. 105/11628 useless extension candidates. Maximal degree in co-relation 45108. Up to 6679 conditions per place. [2023-08-25 19:06:57,278 INFO L140 encePairwiseOnDemand]: 808/821 looper letters, 150 selfloop transitions, 14 changer transitions 25/223 dead transitions. [2023-08-25 19:06:57,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 223 transitions, 1777 flow [2023-08-25 19:06:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:06:57,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:06:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2389 transitions. [2023-08-25 19:06:57,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48497766950872917 [2023-08-25 19:06:57,281 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2389 transitions. [2023-08-25 19:06:57,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2389 transitions. [2023-08-25 19:06:57,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:57,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2389 transitions. [2023-08-25 19:06:57,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:57,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:57,285 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:57,286 INFO L175 Difference]: Start difference. First operand has 149 places, 124 transitions, 802 flow. Second operand 6 states and 2389 transitions. [2023-08-25 19:06:57,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 223 transitions, 1777 flow [2023-08-25 19:06:57,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 223 transitions, 1747 flow, removed 11 selfloop flow, removed 1 redundant places. [2023-08-25 19:06:57,374 INFO L231 Difference]: Finished difference. Result has 157 places, 128 transitions, 872 flow [2023-08-25 19:06:57,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=157, PETRI_TRANSITIONS=128} [2023-08-25 19:06:57,375 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 43 predicate places. [2023-08-25 19:06:57,375 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 128 transitions, 872 flow [2023-08-25 19:06:57,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:57,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:57,376 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:57,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-25 19:06:57,376 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:57,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1340842981, now seen corresponding path program 2 times [2023-08-25 19:06:57,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:57,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798047098] [2023-08-25 19:06:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:57,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:06:57,956 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 19:06:57,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:06:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798047098] [2023-08-25 19:06:57,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798047098] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:06:57,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:06:57,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:06:57,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871674240] [2023-08-25 19:06:57,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:06:57,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:06:57,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:06:57,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:06:57,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:06:57,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 821 [2023-08-25 19:06:57,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 128 transitions, 872 flow. Second operand has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:57,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:06:57,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 821 [2023-08-25 19:06:57,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:06:59,413 INFO L124 PetriNetUnfolderBase]: 6895/12016 cut-off events. [2023-08-25 19:06:59,413 INFO L125 PetriNetUnfolderBase]: For 23258/23720 co-relation queries the response was YES. [2023-08-25 19:06:59,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45853 conditions, 12016 events. 6895/12016 cut-off events. For 23258/23720 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 91385 event pairs, 1476 based on Foata normal form. 271/11452 useless extension candidates. Maximal degree in co-relation 45812. Up to 7099 conditions per place. [2023-08-25 19:06:59,513 INFO L140 encePairwiseOnDemand]: 808/821 looper letters, 163 selfloop transitions, 15 changer transitions 16/228 dead transitions. [2023-08-25 19:06:59,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 228 transitions, 1796 flow [2023-08-25 19:06:59,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:06:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:06:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2393 transitions. [2023-08-25 19:06:59,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857896873731222 [2023-08-25 19:06:59,515 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2393 transitions. [2023-08-25 19:06:59,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2393 transitions. [2023-08-25 19:06:59,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:06:59,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2393 transitions. [2023-08-25 19:06:59,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 398.8333333333333) internal successors, (2393), 6 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:59,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:59,522 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:59,522 INFO L175 Difference]: Start difference. First operand has 157 places, 128 transitions, 872 flow. Second operand 6 states and 2393 transitions. [2023-08-25 19:06:59,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 228 transitions, 1796 flow [2023-08-25 19:06:59,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 228 transitions, 1787 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 19:06:59,634 INFO L231 Difference]: Finished difference. Result has 162 places, 129 transitions, 912 flow [2023-08-25 19:06:59,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=162, PETRI_TRANSITIONS=129} [2023-08-25 19:06:59,634 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 48 predicate places. [2023-08-25 19:06:59,634 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 129 transitions, 912 flow [2023-08-25 19:06:59,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:06:59,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:06:59,635 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:06:59,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-25 19:06:59,635 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:06:59,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:06:59,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1686752551, now seen corresponding path program 3 times [2023-08-25 19:06:59,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:06:59,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111897253] [2023-08-25 19:06:59,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:06:59,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:06:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:07:00,412 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 19:07:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:07:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111897253] [2023-08-25 19:07:00,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111897253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:07:00,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:07:00,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:07:00,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465698073] [2023-08-25 19:07:00,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:07:00,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:07:00,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:07:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:07:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:07:00,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 821 [2023-08-25 19:07:00,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 129 transitions, 912 flow. Second operand has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:00,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:07:00,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 821 [2023-08-25 19:07:00,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:07:02,037 INFO L124 PetriNetUnfolderBase]: 6989/12402 cut-off events. [2023-08-25 19:07:02,037 INFO L125 PetriNetUnfolderBase]: For 28414/28770 co-relation queries the response was YES. [2023-08-25 19:07:02,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47912 conditions, 12402 events. 6989/12402 cut-off events. For 28414/28770 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 95171 event pairs, 1470 based on Foata normal form. 207/11802 useless extension candidates. Maximal degree in co-relation 47869. Up to 6831 conditions per place. [2023-08-25 19:07:02,111 INFO L140 encePairwiseOnDemand]: 808/821 looper letters, 154 selfloop transitions, 15 changer transitions 15/218 dead transitions. [2023-08-25 19:07:02,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 218 transitions, 1786 flow [2023-08-25 19:07:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:07:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:07:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2387 transitions. [2023-08-25 19:07:02,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48457166057653267 [2023-08-25 19:07:02,114 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2387 transitions. [2023-08-25 19:07:02,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2387 transitions. [2023-08-25 19:07:02,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:07:02,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2387 transitions. [2023-08-25 19:07:02,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 397.8333333333333) internal successors, (2387), 6 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:02,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:02,120 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:02,120 INFO L175 Difference]: Start difference. First operand has 162 places, 129 transitions, 912 flow. Second operand 6 states and 2387 transitions. [2023-08-25 19:07:02,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 218 transitions, 1786 flow [2023-08-25 19:07:02,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 218 transitions, 1770 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:07:02,209 INFO L231 Difference]: Finished difference. Result has 167 places, 130 transitions, 948 flow [2023-08-25 19:07:02,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=948, PETRI_PLACES=167, PETRI_TRANSITIONS=130} [2023-08-25 19:07:02,210 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 53 predicate places. [2023-08-25 19:07:02,210 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 130 transitions, 948 flow [2023-08-25 19:07:02,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:02,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:07:02,210 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:07:02,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-25 19:07:02,211 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:07:02,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:07:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1332645561, now seen corresponding path program 4 times [2023-08-25 19:07:02,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:07:02,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22261746] [2023-08-25 19:07:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:07:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:07:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:07:02,839 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 19:07:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:07:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22261746] [2023-08-25 19:07:02,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22261746] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:07:02,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:07:02,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:07:02,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519297010] [2023-08-25 19:07:02,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:07:02,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:07:02,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:07:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:07:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:07:02,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 821 [2023-08-25 19:07:02,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 130 transitions, 948 flow. Second operand has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:02,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:07:02,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 821 [2023-08-25 19:07:02,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:07:04,173 INFO L124 PetriNetUnfolderBase]: 6951/12126 cut-off events. [2023-08-25 19:07:04,173 INFO L125 PetriNetUnfolderBase]: For 30816/31326 co-relation queries the response was YES. [2023-08-25 19:07:04,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48614 conditions, 12126 events. 6951/12126 cut-off events. For 30816/31326 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 92298 event pairs, 1462 based on Foata normal form. 239/11532 useless extension candidates. Maximal degree in co-relation 48568. Up to 7151 conditions per place. [2023-08-25 19:07:04,259 INFO L140 encePairwiseOnDemand]: 808/821 looper letters, 164 selfloop transitions, 18 changer transitions 12/228 dead transitions. [2023-08-25 19:07:04,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 228 transitions, 1877 flow [2023-08-25 19:07:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:07:04,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:07:04,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2391 transitions. [2023-08-25 19:07:04,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4853836784409257 [2023-08-25 19:07:04,262 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2391 transitions. [2023-08-25 19:07:04,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2391 transitions. [2023-08-25 19:07:04,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:07:04,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2391 transitions. [2023-08-25 19:07:04,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 398.5) internal successors, (2391), 6 states have internal predecessors, (2391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:04,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:04,267 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:04,267 INFO L175 Difference]: Start difference. First operand has 167 places, 130 transitions, 948 flow. Second operand 6 states and 2391 transitions. [2023-08-25 19:07:04,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 228 transitions, 1877 flow [2023-08-25 19:07:04,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 228 transitions, 1847 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 19:07:04,360 INFO L231 Difference]: Finished difference. Result has 171 places, 131 transitions, 982 flow [2023-08-25 19:07:04,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=982, PETRI_PLACES=171, PETRI_TRANSITIONS=131} [2023-08-25 19:07:04,361 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 57 predicate places. [2023-08-25 19:07:04,361 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 131 transitions, 982 flow [2023-08-25 19:07:04,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:04,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:07:04,361 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:07:04,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-25 19:07:04,361 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:07:04,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:07:04,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1879188337, now seen corresponding path program 5 times [2023-08-25 19:07:04,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:07:04,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529378896] [2023-08-25 19:07:04,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:07:04,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:07:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:07:04,975 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 19:07:04,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:07:04,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529378896] [2023-08-25 19:07:04,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529378896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:07:04,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:07:04,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:07:04,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256043967] [2023-08-25 19:07:04,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:07:04,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:07:04,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:07:04,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:07:04,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:07:04,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 821 [2023-08-25 19:07:04,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 131 transitions, 982 flow. Second operand has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:04,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:07:04,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 821 [2023-08-25 19:07:04,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:07:06,253 INFO L124 PetriNetUnfolderBase]: 6917/12062 cut-off events. [2023-08-25 19:07:06,253 INFO L125 PetriNetUnfolderBase]: For 33733/34251 co-relation queries the response was YES. [2023-08-25 19:07:06,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48961 conditions, 12062 events. 6917/12062 cut-off events. For 33733/34251 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 92182 event pairs, 1506 based on Foata normal form. 259/11488 useless extension candidates. Maximal degree in co-relation 48913. Up to 7273 conditions per place. [2023-08-25 19:07:06,363 INFO L140 encePairwiseOnDemand]: 808/821 looper letters, 148 selfloop transitions, 15 changer transitions 31/228 dead transitions. [2023-08-25 19:07:06,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 228 transitions, 1897 flow [2023-08-25 19:07:06,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:07:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:07:06,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2392 transitions. [2023-08-25 19:07:06,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48558668290702395 [2023-08-25 19:07:06,366 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2392 transitions. [2023-08-25 19:07:06,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2392 transitions. [2023-08-25 19:07:06,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:07:06,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2392 transitions. [2023-08-25 19:07:06,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 398.6666666666667) internal successors, (2392), 6 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:06,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:06,373 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:06,374 INFO L175 Difference]: Start difference. First operand has 171 places, 131 transitions, 982 flow. Second operand 6 states and 2392 transitions. [2023-08-25 19:07:06,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 228 transitions, 1897 flow [2023-08-25 19:07:06,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 228 transitions, 1883 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 19:07:06,535 INFO L231 Difference]: Finished difference. Result has 175 places, 130 transitions, 991 flow [2023-08-25 19:07:06,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=991, PETRI_PLACES=175, PETRI_TRANSITIONS=130} [2023-08-25 19:07:06,535 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 61 predicate places. [2023-08-25 19:07:06,535 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 130 transitions, 991 flow [2023-08-25 19:07:06,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:06,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:07:06,536 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:07:06,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-25 19:07:06,536 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2023-08-25 19:07:06,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:07:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1420154759, now seen corresponding path program 6 times [2023-08-25 19:07:06,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:07:06,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042882647] [2023-08-25 19:07:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:07:06,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:07:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:07:07,276 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 19:07:07,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:07:07,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042882647] [2023-08-25 19:07:07,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042882647] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:07:07,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:07:07,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:07:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489000370] [2023-08-25 19:07:07,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:07:07,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:07:07,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:07:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:07:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:07:07,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 821 [2023-08-25 19:07:07,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 130 transitions, 991 flow. Second operand has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:07,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:07:07,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 821 [2023-08-25 19:07:07,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:07:08,583 INFO L124 PetriNetUnfolderBase]: 6735/11966 cut-off events. [2023-08-25 19:07:08,583 INFO L125 PetriNetUnfolderBase]: For 34783/35083 co-relation queries the response was YES. [2023-08-25 19:07:08,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49512 conditions, 11966 events. 6735/11966 cut-off events. For 34783/35083 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 92688 event pairs, 1652 based on Foata normal form. 165/11324 useless extension candidates. Maximal degree in co-relation 49462. Up to 6917 conditions per place. [2023-08-25 19:07:08,658 INFO L140 encePairwiseOnDemand]: 808/821 looper letters, 0 selfloop transitions, 0 changer transitions 217/217 dead transitions. [2023-08-25 19:07:08,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 217 transitions, 1852 flow [2023-08-25 19:07:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:07:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:07:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2382 transitions. [2023-08-25 19:07:08,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4835566382460414 [2023-08-25 19:07:08,664 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2382 transitions. [2023-08-25 19:07:08,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2382 transitions. [2023-08-25 19:07:08,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:07:08,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2382 transitions. [2023-08-25 19:07:08,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 397.0) internal successors, (2382), 6 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:08,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:08,669 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 821.0) internal successors, (5747), 7 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:08,669 INFO L175 Difference]: Start difference. First operand has 175 places, 130 transitions, 991 flow. Second operand 6 states and 2382 transitions. [2023-08-25 19:07:08,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 217 transitions, 1852 flow [2023-08-25 19:07:08,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 217 transitions, 1811 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-25 19:07:08,840 INFO L231 Difference]: Finished difference. Result has 171 places, 0 transitions, 0 flow [2023-08-25 19:07:08,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=821, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=171, PETRI_TRANSITIONS=0} [2023-08-25 19:07:08,840 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 57 predicate places. [2023-08-25 19:07:08,840 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 0 transitions, 0 flow [2023-08-25 19:07:08,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 384.2) internal successors, (1921), 5 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:07:08,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (74 of 75 remaining) [2023-08-25 19:07:08,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (73 of 75 remaining) [2023-08-25 19:07:08,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (72 of 75 remaining) [2023-08-25 19:07:08,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (71 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (70 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (65 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (64 of 75 remaining) [2023-08-25 19:07:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (63 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (62 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (61 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (60 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (59 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (58 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (57 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (56 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (55 of 75 remaining) [2023-08-25 19:07:08,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (54 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (53 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (52 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (51 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (50 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (49 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (48 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 75 remaining) [2023-08-25 19:07:08,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (42 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (41 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (40 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (39 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (38 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (37 of 75 remaining) [2023-08-25 19:07:08,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (36 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (35 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (34 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (33 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (32 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (31 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONASSERT (30 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 75 remaining) [2023-08-25 19:07:08,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (21 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (20 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (19 of 75 remaining) [2023-08-25 19:07:08,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (18 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (13 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (12 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (11 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (10 of 75 remaining) [2023-08-25 19:07:08,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (9 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (4 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (3 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (2 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (1 of 75 remaining) [2023-08-25 19:07:08,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (0 of 75 remaining) [2023-08-25 19:07:08,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-25 19:07:08,852 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:07:08,856 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:07:08,857 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:07:08,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:07:08 BasicIcfg [2023-08-25 19:07:08,859 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:07:08,860 INFO L158 Benchmark]: Toolchain (without parser) took 98747.85ms. Allocated memory was 394.3MB in the beginning and 15.0GB in the end (delta: 14.6GB). Free memory was 371.0MB in the beginning and 10.2GB in the end (delta: -9.8GB). Peak memory consumption was 4.7GB. Max. memory is 16.0GB. [2023-08-25 19:07:08,860 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 394.3MB. Free memory was 372.5MB in the beginning and 372.4MB in the end (delta: 82.7kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:07:08,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.68ms. Allocated memory is still 394.3MB. Free memory was 371.0MB in the beginning and 358.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 19:07:08,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.23ms. Allocated memory is still 394.3MB. Free memory was 358.9MB in the beginning and 355.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:07:08,861 INFO L158 Benchmark]: Boogie Preprocessor took 39.36ms. Allocated memory is still 394.3MB. Free memory was 355.9MB in the beginning and 353.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:07:08,861 INFO L158 Benchmark]: RCFGBuilder took 791.62ms. Allocated memory is still 394.3MB. Free memory was 353.8MB in the beginning and 325.4MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 19:07:08,861 INFO L158 Benchmark]: TraceAbstraction took 97520.33ms. Allocated memory was 394.3MB in the beginning and 15.0GB in the end (delta: 14.6GB). Free memory was 324.4MB in the beginning and 10.2GB in the end (delta: -9.9GB). Peak memory consumption was 4.7GB. Max. memory is 16.0GB. [2023-08-25 19:07:08,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 394.3MB. Free memory was 372.5MB in the beginning and 372.4MB in the end (delta: 82.7kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 321.68ms. Allocated memory is still 394.3MB. Free memory was 371.0MB in the beginning and 358.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 66.23ms. Allocated memory is still 394.3MB. Free memory was 358.9MB in the beginning and 355.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.36ms. Allocated memory is still 394.3MB. Free memory was 355.9MB in the beginning and 353.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 791.62ms. Allocated memory is still 394.3MB. Free memory was 353.8MB in the beginning and 325.4MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 97520.33ms. Allocated memory was 394.3MB in the beginning and 15.0GB in the end (delta: 14.6GB). Free memory was 324.4MB in the beginning and 10.2GB in the end (delta: -9.9GB). Peak memory consumption was 4.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9s, 386 PlacesBefore, 114 PlacesAfterwards, 397 TransitionsBefore, 117 TransitionsAfterwards, 42486 CoEnabledTransitionPairs, 9 FixpointIterations, 174 TrivialSequentialCompositions, 166 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 51 ConcurrentYvCompositions, 8 ChoiceCompositions, 410 TotalNumberOfCompositions, 156857 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80710, independent: 79214, independent conditional: 0, independent unconditional: 79214, dependent: 1496, dependent conditional: 0, dependent unconditional: 1496, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 24920, independent: 24789, independent conditional: 0, independent unconditional: 24789, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80710, independent: 54425, independent conditional: 0, independent unconditional: 54425, dependent: 1365, dependent conditional: 0, dependent unconditional: 1365, unknown: 24920, unknown conditional: 0, unknown unconditional: 24920] , Statistics on independence cache: Total cache size (in pairs): 2456, Positive cache size: 2385, Positive conditional cache size: 0, Positive unconditional cache size: 2385, Negative cache size: 71, Negative conditional cache size: 0, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 598 locations, 75 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 97.3s, OverallIterations: 37, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 80.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1728 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1728 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6156 IncrementalHoareTripleChecker+Invalid, 6238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 26 mSDtfsCounter, 6156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=991occurred in iteration=36, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 1128 NumberOfCodeBlocks, 1128 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1091 ConstructedInterpolants, 0 QuantifiedInterpolants, 4494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 37 InterpolantComputations, 37 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 45 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:07:08,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...