/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 -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-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:53:42,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:53:42,163 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 04:53:42,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:53:42,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:53:42,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:53:42,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:53:42,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:53:42,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:53:42,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:53:42,210 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:53:42,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:53:42,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:53:42,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:53:42,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:53:42,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:53:42,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:53:42,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:53:42,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:53:42,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:53:42,213 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:53:42,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:53:42,213 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:53:42,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:53:42,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:53:42,214 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:53:42,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:53:42,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:53:42,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:53:42,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:53:42,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:53:42,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:53:42,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:53:42,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:53:42,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:53:42,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:53:42,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:53:42,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:53:42,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:53:42,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:53:42,618 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:53:42,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-25 04:53:43,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:53:44,008 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:53:44,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-25 04:53:44,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817789a0c/eb21578141714bdb9afa83a6eee526ed/FLAG009697bc9 [2023-08-25 04:53:44,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817789a0c/eb21578141714bdb9afa83a6eee526ed [2023-08-25 04:53:44,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:53:44,029 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:53:44,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:53:44,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:53:44,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:53:44,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd1ed92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44, skipping insertion in model container [2023-08-25 04:53:44,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,053 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:53:44,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:53:44,242 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:53:44,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:53:44,303 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:53:44,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44 WrapperNode [2023-08-25 04:53:44,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:53:44,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:53:44,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:53:44,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:53:44,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,367 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 248 [2023-08-25 04:53:44,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:53:44,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:53:44,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:53:44,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:53:44,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:53:44,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:53:44,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:53:44,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:53:44,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (1/1) ... [2023-08-25 04:53:44,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:53:44,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:53:44,442 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 04:53:44,477 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 04:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 04:53:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 04:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 04:53:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 04:53:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:53:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:53:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:53:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:53:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:53:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:53:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:53:44,497 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 04:53:44,618 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:53:44,621 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:53:44,992 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:53:45,003 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:53:45,003 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 04:53:45,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:53:45 BoogieIcfgContainer [2023-08-25 04:53:45,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:53:45,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:53:45,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:53:45,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:53:45,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:53:44" (1/3) ... [2023-08-25 04:53:45,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d686b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:53:45, skipping insertion in model container [2023-08-25 04:53:45,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:53:44" (2/3) ... [2023-08-25 04:53:45,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d686b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:53:45, skipping insertion in model container [2023-08-25 04:53:45,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:53:45" (3/3) ... [2023-08-25 04:53:45,016 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-08-25 04:53:45,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:53:45,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 04:53:45,033 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:53:45,160 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:53:45,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 309 transitions, 634 flow [2023-08-25 04:53:45,291 INFO L124 PetriNetUnfolderBase]: 18/307 cut-off events. [2023-08-25 04:53:45,291 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 04:53:45,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 307 events. 18/307 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 626 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-25 04:53:45,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 309 transitions, 634 flow [2023-08-25 04:53:45,315 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 298 transitions, 608 flow [2023-08-25 04:53:45,320 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:53:45,341 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 298 transitions, 608 flow [2023-08-25 04:53:45,347 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 298 transitions, 608 flow [2023-08-25 04:53:45,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 298 transitions, 608 flow [2023-08-25 04:53:45,459 INFO L124 PetriNetUnfolderBase]: 18/298 cut-off events. [2023-08-25 04:53:45,459 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 04:53:45,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 298 events. 18/298 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 625 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-25 04:53:45,472 INFO L119 LiptonReduction]: Number of co-enabled transitions 15476 [2023-08-25 04:53:52,450 INFO L134 LiptonReduction]: Checked pairs total: 56101 [2023-08-25 04:53:52,450 INFO L136 LiptonReduction]: Total number of compositions: 329 [2023-08-25 04:53:52,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:53:52,469 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;@4751ec2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:53:52,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-25 04:53:52,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:53:52,470 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:53:52,471 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:53:52,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:52,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:53:52,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:52,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:52,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2023-08-25 04:53:52,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:52,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5725774] [2023-08-25 04:53:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:52,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:52,568 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 04:53:52,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:52,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5725774] [2023-08-25 04:53:52,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5725774] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:52,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:52,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:53:52,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278894003] [2023-08-25 04:53:52,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:52,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:53:52,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:53:52,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:53:52,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 638 [2023-08-25 04:53:52,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 84 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:52,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:52,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 638 [2023-08-25 04:53:52,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:52,787 INFO L124 PetriNetUnfolderBase]: 400/873 cut-off events. [2023-08-25 04:53:52,788 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-25 04:53:52,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 873 events. 400/873 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5315 event pairs, 240 based on Foata normal form. 33/689 useless extension candidates. Maximal degree in co-relation 1400. Up to 602 conditions per place. [2023-08-25 04:53:52,795 INFO L140 encePairwiseOnDemand]: 621/638 looper letters, 33 selfloop transitions, 0 changer transitions 0/67 dead transitions. [2023-08-25 04:53:52,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 67 transitions, 212 flow [2023-08-25 04:53:52,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:53:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:53:52,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 644 transitions. [2023-08-25 04:53:52,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047021943573667 [2023-08-25 04:53:52,818 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 644 transitions. [2023-08-25 04:53:52,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 644 transitions. [2023-08-25 04:53:52,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:52,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 644 transitions. [2023-08-25 04:53:52,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 322.0) internal successors, (644), 2 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:52,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:52,838 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:52,840 INFO L175 Difference]: Start difference. First operand has 81 places, 84 transitions, 180 flow. Second operand 2 states and 644 transitions. [2023-08-25 04:53:52,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 67 transitions, 212 flow [2023-08-25 04:53:52,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 204 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:53:52,847 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 138 flow [2023-08-25 04:53:52,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=138, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-25 04:53:52,853 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 04:53:52,853 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 138 flow [2023-08-25 04:53:52,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:52,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:52,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 04:53:52,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:53:52,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:52,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash 36608344, now seen corresponding path program 1 times [2023-08-25 04:53:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:52,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696556730] [2023-08-25 04:53:52,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:52,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:52,953 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 04:53:52,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:52,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696556730] [2023-08-25 04:53:52,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696556730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:52,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:52,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:52,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905639779] [2023-08-25 04:53:52,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:52,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:52,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:52,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:52,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:52,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 04:53:52,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:52,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:52,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 04:53:52,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:53,083 INFO L124 PetriNetUnfolderBase]: 552/1197 cut-off events. [2023-08-25 04:53:53,083 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 04:53:53,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1197 events. 552/1197 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7253 event pairs, 162 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 2050. Up to 830 conditions per place. [2023-08-25 04:53:53,090 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 42 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2023-08-25 04:53:53,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 72 transitions, 239 flow [2023-08-25 04:53:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-08-25 04:53:53,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4717868338557994 [2023-08-25 04:53:53,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-08-25 04:53:53,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-08-25 04:53:53,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:53,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-08-25 04:53:53,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,101 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 138 flow. Second operand 3 states and 903 transitions. [2023-08-25 04:53:53,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 72 transitions, 239 flow [2023-08-25 04:53:53,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:53,104 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 153 flow [2023-08-25 04:53:53,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-25 04:53:53,105 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 04:53:53,105 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 153 flow [2023-08-25 04:53:53,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:53,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:53:53,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:53:53,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:53,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:53,110 INFO L85 PathProgramCache]: Analyzing trace with hash 832276178, now seen corresponding path program 1 times [2023-08-25 04:53:53,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:53,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337088020] [2023-08-25 04:53:53,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:53,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:53,159 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 04:53:53,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:53,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337088020] [2023-08-25 04:53:53,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337088020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:53,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:53,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:53,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654045067] [2023-08-25 04:53:53,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:53,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:53,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:53,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:53,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:53,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 04:53:53,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 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 04:53:53,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:53,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 04:53:53,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:53,273 INFO L124 PetriNetUnfolderBase]: 453/1032 cut-off events. [2023-08-25 04:53:53,274 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:53:53,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 1032 events. 453/1032 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6418 event pairs, 144 based on Foata normal form. 0/804 useless extension candidates. Maximal degree in co-relation 1750. Up to 677 conditions per place. [2023-08-25 04:53:53,279 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 37 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2023-08-25 04:53:53,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 70 transitions, 240 flow [2023-08-25 04:53:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:53,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-25 04:53:53,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46917450365726227 [2023-08-25 04:53:53,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-25 04:53:53,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-25 04:53:53,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:53,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-25 04:53:53,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,290 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 153 flow. Second operand 3 states and 898 transitions. [2023-08-25 04:53:53,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 70 transitions, 240 flow [2023-08-25 04:53:53,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 70 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:53,293 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 168 flow [2023-08-25 04:53:53,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-25 04:53:53,294 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 04:53:53,294 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 168 flow [2023-08-25 04:53:53,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 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 04:53:53,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:53,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:53,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:53:53,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:53,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash -321588225, now seen corresponding path program 1 times [2023-08-25 04:53:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873644590] [2023-08-25 04:53:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:53,376 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 04:53:53,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:53,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873644590] [2023-08-25 04:53:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873644590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:53,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:53,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720201519] [2023-08-25 04:53:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:53,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:53,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:53,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:53,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:53,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 638 [2023-08-25 04:53:53,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:53,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 638 [2023-08-25 04:53:53,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:53,517 INFO L124 PetriNetUnfolderBase]: 434/914 cut-off events. [2023-08-25 04:53:53,518 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-08-25 04:53:53,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 914 events. 434/914 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5299 event pairs, 226 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 1651. Up to 516 conditions per place. [2023-08-25 04:53:53,523 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 44 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2023-08-25 04:53:53,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 81 transitions, 297 flow [2023-08-25 04:53:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:53,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:53,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-25 04:53:53,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46917450365726227 [2023-08-25 04:53:53,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-25 04:53:53,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-25 04:53:53,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:53,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-25 04:53:53,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,534 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 168 flow. Second operand 3 states and 898 transitions. [2023-08-25 04:53:53,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 81 transitions, 297 flow [2023-08-25 04:53:53,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 81 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:53,538 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 178 flow [2023-08-25 04:53:53,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-25 04:53:53,539 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -17 predicate places. [2023-08-25 04:53:53,540 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 178 flow [2023-08-25 04:53:53,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:53,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:53,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:53:53,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:53,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:53,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1379357581, now seen corresponding path program 1 times [2023-08-25 04:53:53,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:53,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440076966] [2023-08-25 04:53:53,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:53,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:53,586 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 04:53:53,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:53,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440076966] [2023-08-25 04:53:53,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440076966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:53,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:53,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:53,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926062391] [2023-08-25 04:53:53,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:53,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:53,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:53,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:53,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:53,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 04:53:53,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 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 04:53:53,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:53,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 04:53:53,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:53,772 INFO L124 PetriNetUnfolderBase]: 673/1365 cut-off events. [2023-08-25 04:53:53,772 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2023-08-25 04:53:53,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2740 conditions, 1365 events. 673/1365 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8306 event pairs, 175 based on Foata normal form. 0/1111 useless extension candidates. Maximal degree in co-relation 2734. Up to 738 conditions per place. [2023-08-25 04:53:53,780 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 60 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-25 04:53:53,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 87 transitions, 359 flow [2023-08-25 04:53:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2023-08-25 04:53:53,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48014629049111807 [2023-08-25 04:53:53,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2023-08-25 04:53:53,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2023-08-25 04:53:53,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:53,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2023-08-25 04:53:53,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,790 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 178 flow. Second operand 3 states and 919 transitions. [2023-08-25 04:53:53,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 87 transitions, 359 flow [2023-08-25 04:53:53,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:53,798 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 181 flow [2023-08-25 04:53:53,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-25 04:53:53,799 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -19 predicate places. [2023-08-25 04:53:53,799 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 181 flow [2023-08-25 04:53:53,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 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 04:53:53,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:53,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:53,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:53:53,800 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:53,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:53,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1581831165, now seen corresponding path program 1 times [2023-08-25 04:53:53,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:53,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332544181] [2023-08-25 04:53:53,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:53,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:53,827 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 04:53:53,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:53,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332544181] [2023-08-25 04:53:53,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332544181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:53,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:53,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:53,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067758013] [2023-08-25 04:53:53,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:53,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:53,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:53,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:53,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:53,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 638 [2023-08-25 04:53:53,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:53,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 638 [2023-08-25 04:53:53,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:53,979 INFO L124 PetriNetUnfolderBase]: 708/1404 cut-off events. [2023-08-25 04:53:53,980 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-25 04:53:53,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2736 conditions, 1404 events. 708/1404 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8215 event pairs, 187 based on Foata normal form. 0/1130 useless extension candidates. Maximal degree in co-relation 2730. Up to 789 conditions per place. [2023-08-25 04:53:53,989 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 60 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-25 04:53:53,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 87 transitions, 356 flow [2023-08-25 04:53:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:53,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2023-08-25 04:53:53,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48014629049111807 [2023-08-25 04:53:53,992 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2023-08-25 04:53:53,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2023-08-25 04:53:53,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:53,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2023-08-25 04:53:53,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:53,999 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 181 flow. Second operand 3 states and 919 transitions. [2023-08-25 04:53:53,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 87 transitions, 356 flow [2023-08-25 04:53:54,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:54,002 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 196 flow [2023-08-25 04:53:54,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-25 04:53:54,002 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -19 predicate places. [2023-08-25 04:53:54,003 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 196 flow [2023-08-25 04:53:54,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:54,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:54,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:53:54,004 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:54,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:54,004 INFO L85 PathProgramCache]: Analyzing trace with hash 341257858, now seen corresponding path program 1 times [2023-08-25 04:53:54,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:54,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287939973] [2023-08-25 04:53:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:54,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:54,030 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 04:53:54,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:54,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287939973] [2023-08-25 04:53:54,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287939973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:54,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:54,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:54,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499601850] [2023-08-25 04:53:54,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:54,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:54,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:54,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:54,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 638 [2023-08-25 04:53:54,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:54,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 638 [2023-08-25 04:53:54,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:54,208 INFO L124 PetriNetUnfolderBase]: 751/1399 cut-off events. [2023-08-25 04:53:54,208 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-25 04:53:54,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1399 events. 751/1399 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7756 event pairs, 331 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 2858. Up to 767 conditions per place. [2023-08-25 04:53:54,218 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 65 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-25 04:53:54,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 94 transitions, 393 flow [2023-08-25 04:53:54,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:54,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:54,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2023-08-25 04:53:54,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864158829676071 [2023-08-25 04:53:54,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2023-08-25 04:53:54,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2023-08-25 04:53:54,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:54,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2023-08-25 04:53:54,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,228 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 196 flow. Second operand 3 states and 931 transitions. [2023-08-25 04:53:54,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 94 transitions, 393 flow [2023-08-25 04:53:54,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 94 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:54,231 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 206 flow [2023-08-25 04:53:54,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2023-08-25 04:53:54,232 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2023-08-25 04:53:54,232 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 206 flow [2023-08-25 04:53:54,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:54,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:54,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:53:54,233 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:54,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1340250217, now seen corresponding path program 1 times [2023-08-25 04:53:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:54,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388992010] [2023-08-25 04:53:54,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:54,260 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 04:53:54,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:54,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388992010] [2023-08-25 04:53:54,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388992010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:54,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:54,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:53:54,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745107417] [2023-08-25 04:53:54,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:54,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:53:54,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:54,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:53:54,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:53:54,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 638 [2023-08-25 04:53:54,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:54,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 638 [2023-08-25 04:53:54,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:54,438 INFO L124 PetriNetUnfolderBase]: 761/1401 cut-off events. [2023-08-25 04:53:54,438 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-25 04:53:54,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 1401 events. 761/1401 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7585 event pairs, 337 based on Foata normal form. 0/1163 useless extension candidates. Maximal degree in co-relation 2980. Up to 761 conditions per place. [2023-08-25 04:53:54,448 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 66 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-08-25 04:53:54,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 408 flow [2023-08-25 04:53:54,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2023-08-25 04:53:54,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864158829676071 [2023-08-25 04:53:54,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2023-08-25 04:53:54,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2023-08-25 04:53:54,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:54,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2023-08-25 04:53:54,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,456 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 206 flow. Second operand 3 states and 931 transitions. [2023-08-25 04:53:54,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 408 flow [2023-08-25 04:53:54,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 94 transitions, 408 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:54,459 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 216 flow [2023-08-25 04:53:54,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-25 04:53:54,460 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -17 predicate places. [2023-08-25 04:53:54,460 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 216 flow [2023-08-25 04:53:54,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:54,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:54,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:53:54,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:54,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:54,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1440892745, now seen corresponding path program 1 times [2023-08-25 04:53:54,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:54,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433650732] [2023-08-25 04:53:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:54,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:54,623 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 04:53:54,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:54,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433650732] [2023-08-25 04:53:54,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433650732] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:54,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:54,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:54,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456279592] [2023-08-25 04:53:54,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:54,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:54,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:54,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:54,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:54,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:53:54,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:54,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:53:54,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:54,926 INFO L124 PetriNetUnfolderBase]: 753/1587 cut-off events. [2023-08-25 04:53:54,926 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-08-25 04:53:54,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1587 events. 753/1587 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10224 event pairs, 155 based on Foata normal form. 2/1387 useless extension candidates. Maximal degree in co-relation 3464. Up to 845 conditions per place. [2023-08-25 04:53:54,938 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 63 selfloop transitions, 4 changer transitions 8/104 dead transitions. [2023-08-25 04:53:54,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 460 flow [2023-08-25 04:53:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1475 transitions. [2023-08-25 04:53:54,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46238244514106586 [2023-08-25 04:53:54,942 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1475 transitions. [2023-08-25 04:53:54,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1475 transitions. [2023-08-25 04:53:54,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:54,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1475 transitions. [2023-08-25 04:53:54,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,951 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,952 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 216 flow. Second operand 5 states and 1475 transitions. [2023-08-25 04:53:54,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 460 flow [2023-08-25 04:53:54,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 104 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:54,955 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 250 flow [2023-08-25 04:53:54,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2023-08-25 04:53:54,955 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -9 predicate places. [2023-08-25 04:53:54,956 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 250 flow [2023-08-25 04:53:54,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:54,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:54,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:54,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 04:53:54,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:54,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash -932150495, now seen corresponding path program 2 times [2023-08-25 04:53:54,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:54,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634852428] [2023-08-25 04:53:54,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:54,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:55,152 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 04:53:55,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:55,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634852428] [2023-08-25 04:53:55,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634852428] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:55,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:55,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:55,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980800875] [2023-08-25 04:53:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:55,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:55,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:55,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:55,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:55,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:53:55,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:55,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:55,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:53:55,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:55,480 INFO L124 PetriNetUnfolderBase]: 902/1900 cut-off events. [2023-08-25 04:53:55,480 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2023-08-25 04:53:55,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 1900 events. 902/1900 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 13058 event pairs, 546 based on Foata normal form. 2/1716 useless extension candidates. Maximal degree in co-relation 4482. Up to 1216 conditions per place. [2023-08-25 04:53:55,495 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 70 selfloop transitions, 2 changer transitions 8/109 dead transitions. [2023-08-25 04:53:55,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 531 flow [2023-08-25 04:53:55,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:55,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1475 transitions. [2023-08-25 04:53:55,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46238244514106586 [2023-08-25 04:53:55,499 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1475 transitions. [2023-08-25 04:53:55,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1475 transitions. [2023-08-25 04:53:55,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:55,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1475 transitions. [2023-08-25 04:53:55,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:55,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:55,508 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:55,508 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 250 flow. Second operand 5 states and 1475 transitions. [2023-08-25 04:53:55,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 531 flow [2023-08-25 04:53:55,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 109 transitions, 516 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:55,513 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 264 flow [2023-08-25 04:53:55,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2023-08-25 04:53:55,515 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-25 04:53:55,515 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 264 flow [2023-08-25 04:53:55,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:55,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:55,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:55,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 04:53:55,528 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:55,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1337850704, now seen corresponding path program 1 times [2023-08-25 04:53:55,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:55,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367524016] [2023-08-25 04:53:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:55,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:55,751 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 04:53:55,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367524016] [2023-08-25 04:53:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367524016] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:55,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:55,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547037468] [2023-08-25 04:53:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:55,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:53:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:53:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:53:55,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 04:53:55,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:55,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:55,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 04:53:55,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:56,293 INFO L124 PetriNetUnfolderBase]: 1010/2269 cut-off events. [2023-08-25 04:53:56,293 INFO L125 PetriNetUnfolderBase]: For 869/871 co-relation queries the response was YES. [2023-08-25 04:53:56,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5379 conditions, 2269 events. 1010/2269 cut-off events. For 869/871 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16285 event pairs, 124 based on Foata normal form. 19/2124 useless extension candidates. Maximal degree in co-relation 5363. Up to 605 conditions per place. [2023-08-25 04:53:56,308 INFO L140 encePairwiseOnDemand]: 620/638 looper letters, 109 selfloop transitions, 32 changer transitions 5/175 dead transitions. [2023-08-25 04:53:56,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 175 transitions, 904 flow [2023-08-25 04:53:56,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 04:53:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 04:53:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2599 transitions. [2023-08-25 04:53:56,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45262974573319403 [2023-08-25 04:53:56,315 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2599 transitions. [2023-08-25 04:53:56,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2599 transitions. [2023-08-25 04:53:56,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:56,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2599 transitions. [2023-08-25 04:53:56,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 288.77777777777777) internal successors, (2599), 9 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,327 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,328 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 264 flow. Second operand 9 states and 2599 transitions. [2023-08-25 04:53:56,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 175 transitions, 904 flow [2023-08-25 04:53:56,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 175 transitions, 889 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:56,333 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 524 flow [2023-08-25 04:53:56,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=524, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2023-08-25 04:53:56,334 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 7 predicate places. [2023-08-25 04:53:56,334 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 524 flow [2023-08-25 04:53:56,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:56,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:56,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:56,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:53:56,335 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:56,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:56,335 INFO L85 PathProgramCache]: Analyzing trace with hash -928608975, now seen corresponding path program 3 times [2023-08-25 04:53:56,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:56,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226613728] [2023-08-25 04:53:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:56,439 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 04:53:56,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:56,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226613728] [2023-08-25 04:53:56,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226613728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:56,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:56,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:56,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407977958] [2023-08-25 04:53:56,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:56,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:56,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:56,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:56,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:56,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:53:56,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 524 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:56,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:53:56,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:56,787 INFO L124 PetriNetUnfolderBase]: 1007/2238 cut-off events. [2023-08-25 04:53:56,787 INFO L125 PetriNetUnfolderBase]: For 2549/2563 co-relation queries the response was YES. [2023-08-25 04:53:56,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6247 conditions, 2238 events. 1007/2238 cut-off events. For 2549/2563 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16068 event pairs, 327 based on Foata normal form. 7/2089 useless extension candidates. Maximal degree in co-relation 6226. Up to 1355 conditions per place. [2023-08-25 04:53:56,810 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 87 selfloop transitions, 6 changer transitions 10/132 dead transitions. [2023-08-25 04:53:56,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 132 transitions, 888 flow [2023-08-25 04:53:56,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:56,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1469 transitions. [2023-08-25 04:53:56,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46050156739811915 [2023-08-25 04:53:56,814 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1469 transitions. [2023-08-25 04:53:56,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1469 transitions. [2023-08-25 04:53:56,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:56,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1469 transitions. [2023-08-25 04:53:56,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.8) internal successors, (1469), 5 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,822 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,822 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 524 flow. Second operand 5 states and 1469 transitions. [2023-08-25 04:53:56,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 132 transitions, 888 flow [2023-08-25 04:53:56,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 132 transitions, 860 flow, removed 14 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:56,834 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 535 flow [2023-08-25 04:53:56,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=535, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2023-08-25 04:53:56,836 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-25 04:53:56,836 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 535 flow [2023-08-25 04:53:56,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:56,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:56,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:56,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 04:53:56,837 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:56,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1917284318, now seen corresponding path program 2 times [2023-08-25 04:53:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:56,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286850377] [2023-08-25 04:53:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:56,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:57,018 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 04:53:57,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:57,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286850377] [2023-08-25 04:53:57,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286850377] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:57,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:57,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251281766] [2023-08-25 04:53:57,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:57,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:53:57,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:53:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:53:57,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 04:53:57,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:57,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:57,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 04:53:57,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:57,396 INFO L124 PetriNetUnfolderBase]: 976/2137 cut-off events. [2023-08-25 04:53:57,397 INFO L125 PetriNetUnfolderBase]: For 2938/2957 co-relation queries the response was YES. [2023-08-25 04:53:57,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6055 conditions, 2137 events. 976/2137 cut-off events. For 2938/2957 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 15049 event pairs, 297 based on Foata normal form. 13/2006 useless extension candidates. Maximal degree in co-relation 6030. Up to 1371 conditions per place. [2023-08-25 04:53:57,414 INFO L140 encePairwiseOnDemand]: 624/638 looper letters, 82 selfloop transitions, 22 changer transitions 9/142 dead transitions. [2023-08-25 04:53:57,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 142 transitions, 959 flow [2023-08-25 04:53:57,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:57,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2003 transitions. [2023-08-25 04:53:57,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44849977608598296 [2023-08-25 04:53:57,419 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2003 transitions. [2023-08-25 04:53:57,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2003 transitions. [2023-08-25 04:53:57,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:57,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2003 transitions. [2023-08-25 04:53:57,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 286.14285714285717) internal successors, (2003), 7 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:57,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:57,469 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:57,469 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 535 flow. Second operand 7 states and 2003 transitions. [2023-08-25 04:53:57,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 142 transitions, 959 flow [2023-08-25 04:53:57,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 142 transitions, 948 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:57,480 INFO L231 Difference]: Finished difference. Result has 101 places, 98 transitions, 630 flow [2023-08-25 04:53:57,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=630, PETRI_PLACES=101, PETRI_TRANSITIONS=98} [2023-08-25 04:53:57,482 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 20 predicate places. [2023-08-25 04:53:57,482 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 98 transitions, 630 flow [2023-08-25 04:53:57,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:57,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:57,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:57,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 04:53:57,483 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:57,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:57,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1166658950, now seen corresponding path program 3 times [2023-08-25 04:53:57,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:57,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865379204] [2023-08-25 04:53:57,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:57,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:57,596 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 04:53:57,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:57,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865379204] [2023-08-25 04:53:57,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865379204] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:57,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:57,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:57,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881888417] [2023-08-25 04:53:57,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:57,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:53:57,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:53:57,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:53:57,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 04:53:57,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 98 transitions, 630 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:57,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:57,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 04:53:57,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:57,974 INFO L124 PetriNetUnfolderBase]: 835/1848 cut-off events. [2023-08-25 04:53:57,975 INFO L125 PetriNetUnfolderBase]: For 2987/3000 co-relation queries the response was YES. [2023-08-25 04:53:57,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5607 conditions, 1848 events. 835/1848 cut-off events. For 2987/3000 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 12401 event pairs, 212 based on Foata normal form. 29/1759 useless extension candidates. Maximal degree in co-relation 5580. Up to 889 conditions per place. [2023-08-25 04:53:57,992 INFO L140 encePairwiseOnDemand]: 622/638 looper letters, 88 selfloop transitions, 26 changer transitions 14/157 dead transitions. [2023-08-25 04:53:57,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 157 transitions, 1109 flow [2023-08-25 04:53:57,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 04:53:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 04:53:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2299 transitions. [2023-08-25 04:53:57,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4504310344827586 [2023-08-25 04:53:57,999 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2299 transitions. [2023-08-25 04:53:57,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2299 transitions. [2023-08-25 04:53:58,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:58,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2299 transitions. [2023-08-25 04:53:58,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 287.375) internal successors, (2299), 8 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,011 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,011 INFO L175 Difference]: Start difference. First operand has 101 places, 98 transitions, 630 flow. Second operand 8 states and 2299 transitions. [2023-08-25 04:53:58,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 157 transitions, 1109 flow [2023-08-25 04:53:58,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 157 transitions, 1061 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-25 04:53:58,024 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 654 flow [2023-08-25 04:53:58,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=654, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2023-08-25 04:53:58,026 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 24 predicate places. [2023-08-25 04:53:58,026 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 654 flow [2023-08-25 04:53:58,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:58,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:58,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:58,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 04:53:58,027 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:58,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:58,027 INFO L85 PathProgramCache]: Analyzing trace with hash -218850480, now seen corresponding path program 4 times [2023-08-25 04:53:58,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:58,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189986675] [2023-08-25 04:53:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:58,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:58,165 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 04:53:58,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:58,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189986675] [2023-08-25 04:53:58,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189986675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:58,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:58,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:58,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716154949] [2023-08-25 04:53:58,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:58,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:53:58,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:58,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:53:58,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:53:58,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 04:53:58,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:58,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:58,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 04:53:58,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:58,546 INFO L124 PetriNetUnfolderBase]: 800/1759 cut-off events. [2023-08-25 04:53:58,546 INFO L125 PetriNetUnfolderBase]: For 3292/3311 co-relation queries the response was YES. [2023-08-25 04:53:58,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5419 conditions, 1759 events. 800/1759 cut-off events. For 3292/3311 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 11648 event pairs, 190 based on Foata normal form. 15/1656 useless extension candidates. Maximal degree in co-relation 5392. Up to 889 conditions per place. [2023-08-25 04:53:58,561 INFO L140 encePairwiseOnDemand]: 624/638 looper letters, 82 selfloop transitions, 23 changer transitions 18/152 dead transitions. [2023-08-25 04:53:58,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 152 transitions, 1066 flow [2023-08-25 04:53:58,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:58,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2019 transitions. [2023-08-25 04:53:58,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4520824003582624 [2023-08-25 04:53:58,567 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2019 transitions. [2023-08-25 04:53:58,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2019 transitions. [2023-08-25 04:53:58,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:58,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2019 transitions. [2023-08-25 04:53:58,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 288.42857142857144) internal successors, (2019), 7 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,579 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 638.0) internal successors, (5104), 8 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,579 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 654 flow. Second operand 7 states and 2019 transitions. [2023-08-25 04:53:58,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 152 transitions, 1066 flow [2023-08-25 04:53:58,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 152 transitions, 1024 flow, removed 13 selfloop flow, removed 2 redundant places. [2023-08-25 04:53:58,595 INFO L231 Difference]: Finished difference. Result has 108 places, 93 transitions, 618 flow [2023-08-25 04:53:58,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=618, PETRI_PLACES=108, PETRI_TRANSITIONS=93} [2023-08-25 04:53:58,595 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 27 predicate places. [2023-08-25 04:53:58,595 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 93 transitions, 618 flow [2023-08-25 04:53:58,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 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 04:53:58,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:58,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:58,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 04:53:58,596 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:58,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:58,597 INFO L85 PathProgramCache]: Analyzing trace with hash 536260888, now seen corresponding path program 1 times [2023-08-25 04:53:58,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:58,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207978034] [2023-08-25 04:53:58,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:58,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:58,678 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 04:53:58,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:58,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207978034] [2023-08-25 04:53:58,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207978034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:58,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:58,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:58,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647728924] [2023-08-25 04:53:58,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:58,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:58,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:58,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:58,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:58,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:53:58,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 93 transitions, 618 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:58,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:53:58,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:58,936 INFO L124 PetriNetUnfolderBase]: 628/1457 cut-off events. [2023-08-25 04:53:58,937 INFO L125 PetriNetUnfolderBase]: For 2630/2630 co-relation queries the response was YES. [2023-08-25 04:53:58,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 1457 events. 628/1457 cut-off events. For 2630/2630 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 9307 event pairs, 212 based on Foata normal form. 43/1396 useless extension candidates. Maximal degree in co-relation 4256. Up to 1082 conditions per place. [2023-08-25 04:53:58,948 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 58 selfloop transitions, 5 changer transitions 8/100 dead transitions. [2023-08-25 04:53:58,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 100 transitions, 672 flow [2023-08-25 04:53:58,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1457 transitions. [2023-08-25 04:53:58,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567398119122257 [2023-08-25 04:53:58,952 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1457 transitions. [2023-08-25 04:53:58,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1457 transitions. [2023-08-25 04:53:58,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:58,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1457 transitions. [2023-08-25 04:53:58,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,961 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,961 INFO L175 Difference]: Start difference. First operand has 108 places, 93 transitions, 618 flow. Second operand 5 states and 1457 transitions. [2023-08-25 04:53:58,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 100 transitions, 672 flow [2023-08-25 04:53:58,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 100 transitions, 579 flow, removed 10 selfloop flow, removed 13 redundant places. [2023-08-25 04:53:58,968 INFO L231 Difference]: Finished difference. Result has 93 places, 80 transitions, 407 flow [2023-08-25 04:53:58,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=407, PETRI_PLACES=93, PETRI_TRANSITIONS=80} [2023-08-25 04:53:58,970 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2023-08-25 04:53:58,970 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 80 transitions, 407 flow [2023-08-25 04:53:58,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:58,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:58,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 04:53:58,971 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:58,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2141422464, now seen corresponding path program 2 times [2023-08-25 04:53:58,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:58,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096703398] [2023-08-25 04:53:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:58,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:59,086 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 04:53:59,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096703398] [2023-08-25 04:53:59,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096703398] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:59,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:59,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:59,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561154625] [2023-08-25 04:53:59,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:59,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:59,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:59,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:59,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:59,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:53:59,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 80 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:59,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:53:59,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:59,293 INFO L124 PetriNetUnfolderBase]: 613/1408 cut-off events. [2023-08-25 04:53:59,293 INFO L125 PetriNetUnfolderBase]: For 1095/1095 co-relation queries the response was YES. [2023-08-25 04:53:59,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3757 conditions, 1408 events. 613/1408 cut-off events. For 1095/1095 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8997 event pairs, 422 based on Foata normal form. 1/1279 useless extension candidates. Maximal degree in co-relation 3735. Up to 1062 conditions per place. [2023-08-25 04:53:59,303 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 54 selfloop transitions, 3 changer transitions 10/96 dead transitions. [2023-08-25 04:53:59,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 96 transitions, 589 flow [2023-08-25 04:53:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1449 transitions. [2023-08-25 04:53:59,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4542319749216301 [2023-08-25 04:53:59,308 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1449 transitions. [2023-08-25 04:53:59,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1449 transitions. [2023-08-25 04:53:59,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:59,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1449 transitions. [2023-08-25 04:53:59,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 289.8) internal successors, (1449), 5 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,316 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,316 INFO L175 Difference]: Start difference. First operand has 93 places, 80 transitions, 407 flow. Second operand 5 states and 1449 transitions. [2023-08-25 04:53:59,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 96 transitions, 589 flow [2023-08-25 04:53:59,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 96 transitions, 576 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 04:53:59,322 INFO L231 Difference]: Finished difference. Result has 95 places, 79 transitions, 406 flow [2023-08-25 04:53:59,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2023-08-25 04:53:59,323 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-25 04:53:59,323 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 406 flow [2023-08-25 04:53:59,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:59,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:59,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 04:53:59,324 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:59,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash 967761938, now seen corresponding path program 3 times [2023-08-25 04:53:59,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:59,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171467018] [2023-08-25 04:53:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:59,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:59,413 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 04:53:59,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171467018] [2023-08-25 04:53:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171467018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:59,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:59,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566572701] [2023-08-25 04:53:59,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:59,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:59,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:53:59,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:59,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:53:59,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:59,666 INFO L124 PetriNetUnfolderBase]: 684/1597 cut-off events. [2023-08-25 04:53:59,666 INFO L125 PetriNetUnfolderBase]: For 1140/1146 co-relation queries the response was YES. [2023-08-25 04:53:59,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4177 conditions, 1597 events. 684/1597 cut-off events. For 1140/1146 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 10666 event pairs, 236 based on Foata normal form. 7/1487 useless extension candidates. Maximal degree in co-relation 4154. Up to 970 conditions per place. [2023-08-25 04:53:59,676 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 59 selfloop transitions, 6 changer transitions 15/107 dead transitions. [2023-08-25 04:53:59,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 107 transitions, 650 flow [2023-08-25 04:53:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:59,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1465 transitions. [2023-08-25 04:53:59,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592476489028213 [2023-08-25 04:53:59,681 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1465 transitions. [2023-08-25 04:53:59,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1465 transitions. [2023-08-25 04:53:59,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:59,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1465 transitions. [2023-08-25 04:53:59,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,688 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,688 INFO L175 Difference]: Start difference. First operand has 95 places, 79 transitions, 406 flow. Second operand 5 states and 1465 transitions. [2023-08-25 04:53:59,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 107 transitions, 650 flow [2023-08-25 04:53:59,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 107 transitions, 639 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 04:53:59,695 INFO L231 Difference]: Finished difference. Result has 95 places, 70 transitions, 343 flow [2023-08-25 04:53:59,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=343, PETRI_PLACES=95, PETRI_TRANSITIONS=70} [2023-08-25 04:53:59,695 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2023-08-25 04:53:59,695 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 343 flow [2023-08-25 04:53:59,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.0) internal successors, (1415), 5 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:59,696 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] [2023-08-25 04:53:59,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 04:53:59,696 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:53:59,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:59,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1767042383, now seen corresponding path program 1 times [2023-08-25 04:53:59,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:59,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247973752] [2023-08-25 04:53:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:59,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:59,808 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 04:53:59,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:59,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247973752] [2023-08-25 04:53:59,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247973752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:59,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:59,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:53:59,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229396314] [2023-08-25 04:53:59,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:59,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:59,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:59,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:59,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:59,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:53:59,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 70 transitions, 343 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:59,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:53:59,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:00,123 INFO L124 PetriNetUnfolderBase]: 631/1558 cut-off events. [2023-08-25 04:54:00,124 INFO L125 PetriNetUnfolderBase]: For 1126/1132 co-relation queries the response was YES. [2023-08-25 04:54:00,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3987 conditions, 1558 events. 631/1558 cut-off events. For 1126/1132 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10687 event pairs, 225 based on Foata normal form. 23/1489 useless extension candidates. Maximal degree in co-relation 3965. Up to 490 conditions per place. [2023-08-25 04:54:00,134 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 75 selfloop transitions, 4 changer transitions 8/114 dead transitions. [2023-08-25 04:54:00,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 114 transitions, 666 flow [2023-08-25 04:54:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:00,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1474 transitions. [2023-08-25 04:54:00,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2023-08-25 04:54:00,139 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1474 transitions. [2023-08-25 04:54:00,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1474 transitions. [2023-08-25 04:54:00,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:00,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1474 transitions. [2023-08-25 04:54:00,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,146 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,146 INFO L175 Difference]: Start difference. First operand has 95 places, 70 transitions, 343 flow. Second operand 5 states and 1474 transitions. [2023-08-25 04:54:00,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 114 transitions, 666 flow [2023-08-25 04:54:00,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 114 transitions, 642 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-25 04:54:00,153 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 362 flow [2023-08-25 04:54:00,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2023-08-25 04:54:00,153 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 8 predicate places. [2023-08-25 04:54:00,153 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 362 flow [2023-08-25 04:54:00,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:00,154 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] [2023-08-25 04:54:00,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 04:54:00,154 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:00,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1947371577, now seen corresponding path program 1 times [2023-08-25 04:54:00,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:00,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400643575] [2023-08-25 04:54:00,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:00,268 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 04:54:00,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:00,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400643575] [2023-08-25 04:54:00,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400643575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:00,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:54:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053565307] [2023-08-25 04:54:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:00,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:00,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:54:00,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:00,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:54:00,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:00,531 INFO L124 PetriNetUnfolderBase]: 612/1581 cut-off events. [2023-08-25 04:54:00,531 INFO L125 PetriNetUnfolderBase]: For 1424/1424 co-relation queries the response was YES. [2023-08-25 04:54:00,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4228 conditions, 1581 events. 612/1581 cut-off events. For 1424/1424 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 11092 event pairs, 245 based on Foata normal form. 21/1556 useless extension candidates. Maximal degree in co-relation 4208. Up to 611 conditions per place. [2023-08-25 04:54:00,541 INFO L140 encePairwiseOnDemand]: 631/638 looper letters, 72 selfloop transitions, 4 changer transitions 7/110 dead transitions. [2023-08-25 04:54:00,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 110 transitions, 678 flow [2023-08-25 04:54:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1467 transitions. [2023-08-25 04:54:00,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4598746081504702 [2023-08-25 04:54:00,546 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1467 transitions. [2023-08-25 04:54:00,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1467 transitions. [2023-08-25 04:54:00,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:00,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1467 transitions. [2023-08-25 04:54:00,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.4) internal successors, (1467), 5 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,552 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,553 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 362 flow. Second operand 5 states and 1467 transitions. [2023-08-25 04:54:00,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 110 transitions, 678 flow [2023-08-25 04:54:00,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 666 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 04:54:00,559 INFO L231 Difference]: Finished difference. Result has 94 places, 76 transitions, 406 flow [2023-08-25 04:54:00,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=94, PETRI_TRANSITIONS=76} [2023-08-25 04:54:00,560 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 13 predicate places. [2023-08-25 04:54:00,560 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 76 transitions, 406 flow [2023-08-25 04:54:00,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:00,561 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] [2023-08-25 04:54:00,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 04:54:00,561 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:00,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash -471974612, now seen corresponding path program 1 times [2023-08-25 04:54:00,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772130015] [2023-08-25 04:54:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:00,691 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 04:54:00,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:00,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772130015] [2023-08-25 04:54:00,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772130015] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:00,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:00,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:54:00,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870679010] [2023-08-25 04:54:00,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:00,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:54:00,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:00,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:54:00,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:54:00,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 04:54:00,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 76 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:00,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:00,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 04:54:00,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:01,052 INFO L124 PetriNetUnfolderBase]: 524/1343 cut-off events. [2023-08-25 04:54:01,052 INFO L125 PetriNetUnfolderBase]: For 1550/1584 co-relation queries the response was YES. [2023-08-25 04:54:01,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3781 conditions, 1343 events. 524/1343 cut-off events. For 1550/1584 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 8928 event pairs, 149 based on Foata normal form. 33/1352 useless extension candidates. Maximal degree in co-relation 3758. Up to 481 conditions per place. [2023-08-25 04:54:01,061 INFO L140 encePairwiseOnDemand]: 622/638 looper letters, 85 selfloop transitions, 17 changer transitions 14/143 dead transitions. [2023-08-25 04:54:01,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 143 transitions, 902 flow [2023-08-25 04:54:01,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 04:54:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 04:54:01,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2836 transitions. [2023-08-25 04:54:01,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4445141065830721 [2023-08-25 04:54:01,068 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2836 transitions. [2023-08-25 04:54:01,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2836 transitions. [2023-08-25 04:54:01,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:01,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2836 transitions. [2023-08-25 04:54:01,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 283.6) internal successors, (2836), 10 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 638.0) internal successors, (7018), 11 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,079 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 638.0) internal successors, (7018), 11 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,080 INFO L175 Difference]: Start difference. First operand has 94 places, 76 transitions, 406 flow. Second operand 10 states and 2836 transitions. [2023-08-25 04:54:01,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 143 transitions, 902 flow [2023-08-25 04:54:01,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 143 transitions, 894 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-25 04:54:01,087 INFO L231 Difference]: Finished difference. Result has 106 places, 80 transitions, 485 flow [2023-08-25 04:54:01,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=485, PETRI_PLACES=106, PETRI_TRANSITIONS=80} [2023-08-25 04:54:01,087 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2023-08-25 04:54:01,088 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 80 transitions, 485 flow [2023-08-25 04:54:01,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:01,088 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] [2023-08-25 04:54:01,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 04:54:01,088 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:01,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:01,089 INFO L85 PathProgramCache]: Analyzing trace with hash -28812459, now seen corresponding path program 2 times [2023-08-25 04:54:01,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:01,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650602579] [2023-08-25 04:54:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:01,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:01,191 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 04:54:01,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:01,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650602579] [2023-08-25 04:54:01,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650602579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:01,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:01,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:54:01,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815525877] [2023-08-25 04:54:01,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:01,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:01,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:01,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:01,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:01,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:54:01,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 80 transitions, 485 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:01,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:54:01,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:01,450 INFO L124 PetriNetUnfolderBase]: 499/1305 cut-off events. [2023-08-25 04:54:01,450 INFO L125 PetriNetUnfolderBase]: For 2314/2328 co-relation queries the response was YES. [2023-08-25 04:54:01,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3907 conditions, 1305 events. 499/1305 cut-off events. For 2314/2328 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 8629 event pairs, 238 based on Foata normal form. 12/1297 useless extension candidates. Maximal degree in co-relation 3879. Up to 490 conditions per place. [2023-08-25 04:54:01,459 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 70 selfloop transitions, 4 changer transitions 10/111 dead transitions. [2023-08-25 04:54:01,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 766 flow [2023-08-25 04:54:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1465 transitions. [2023-08-25 04:54:01,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592476489028213 [2023-08-25 04:54:01,462 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1465 transitions. [2023-08-25 04:54:01,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1465 transitions. [2023-08-25 04:54:01,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:01,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1465 transitions. [2023-08-25 04:54:01,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,468 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,468 INFO L175 Difference]: Start difference. First operand has 106 places, 80 transitions, 485 flow. Second operand 5 states and 1465 transitions. [2023-08-25 04:54:01,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 766 flow [2023-08-25 04:54:01,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 111 transitions, 746 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-25 04:54:01,477 INFO L231 Difference]: Finished difference. Result has 108 places, 77 transitions, 454 flow [2023-08-25 04:54:01,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=108, PETRI_TRANSITIONS=77} [2023-08-25 04:54:01,477 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 27 predicate places. [2023-08-25 04:54:01,477 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 77 transitions, 454 flow [2023-08-25 04:54:01,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:01,478 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] [2023-08-25 04:54:01,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 04:54:01,478 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:01,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 72549352, now seen corresponding path program 2 times [2023-08-25 04:54:01,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:01,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466880112] [2023-08-25 04:54:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:01,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:01,658 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 04:54:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:01,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466880112] [2023-08-25 04:54:01,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466880112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:01,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:01,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:54:01,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665274767] [2023-08-25 04:54:01,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:01,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:54:01,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:01,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:54:01,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:54:01,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 04:54:01,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 77 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:01,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:01,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 04:54:01,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:02,001 INFO L124 PetriNetUnfolderBase]: 433/1128 cut-off events. [2023-08-25 04:54:02,001 INFO L125 PetriNetUnfolderBase]: For 2280/2310 co-relation queries the response was YES. [2023-08-25 04:54:02,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3467 conditions, 1128 events. 433/1128 cut-off events. For 2280/2310 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7212 event pairs, 124 based on Foata normal form. 23/1121 useless extension candidates. Maximal degree in co-relation 3439. Up to 447 conditions per place. [2023-08-25 04:54:02,008 INFO L140 encePairwiseOnDemand]: 625/638 looper letters, 68 selfloop transitions, 12 changer transitions 15/122 dead transitions. [2023-08-25 04:54:02,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 122 transitions, 796 flow [2023-08-25 04:54:02,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 04:54:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 04:54:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2541 transitions. [2023-08-25 04:54:02,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4425287356321839 [2023-08-25 04:54:02,013 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2541 transitions. [2023-08-25 04:54:02,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2541 transitions. [2023-08-25 04:54:02,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:02,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2541 transitions. [2023-08-25 04:54:02,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 282.3333333333333) internal successors, (2541), 9 states have internal predecessors, (2541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,022 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 638.0) internal successors, (6380), 10 states have internal predecessors, (6380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,023 INFO L175 Difference]: Start difference. First operand has 108 places, 77 transitions, 454 flow. Second operand 9 states and 2541 transitions. [2023-08-25 04:54:02,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 122 transitions, 796 flow [2023-08-25 04:54:02,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 122 transitions, 782 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 04:54:02,031 INFO L231 Difference]: Finished difference. Result has 114 places, 74 transitions, 452 flow [2023-08-25 04:54:02,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=452, PETRI_PLACES=114, PETRI_TRANSITIONS=74} [2023-08-25 04:54:02,031 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 33 predicate places. [2023-08-25 04:54:02,031 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 74 transitions, 452 flow [2023-08-25 04:54:02,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:02,032 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] [2023-08-25 04:54:02,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 04:54:02,032 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:02,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2041876265, now seen corresponding path program 2 times [2023-08-25 04:54:02,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:02,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587432166] [2023-08-25 04:54:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:02,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:02,130 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 04:54:02,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:02,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587432166] [2023-08-25 04:54:02,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587432166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:02,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:02,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:54:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441047647] [2023-08-25 04:54:02,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:02,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:02,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:02,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:02,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:02,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:54:02,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 74 transitions, 452 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:02,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:54:02,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:02,361 INFO L124 PetriNetUnfolderBase]: 433/1142 cut-off events. [2023-08-25 04:54:02,361 INFO L125 PetriNetUnfolderBase]: For 2479/2503 co-relation queries the response was YES. [2023-08-25 04:54:02,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3571 conditions, 1142 events. 433/1142 cut-off events. For 2479/2503 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7278 event pairs, 198 based on Foata normal form. 7/1126 useless extension candidates. Maximal degree in co-relation 3542. Up to 451 conditions per place. [2023-08-25 04:54:02,370 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 60 selfloop transitions, 2 changer transitions 11/100 dead transitions. [2023-08-25 04:54:02,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 100 transitions, 706 flow [2023-08-25 04:54:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:02,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:02,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1457 transitions. [2023-08-25 04:54:02,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567398119122257 [2023-08-25 04:54:02,373 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1457 transitions. [2023-08-25 04:54:02,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1457 transitions. [2023-08-25 04:54:02,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:02,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1457 transitions. [2023-08-25 04:54:02,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.4) internal successors, (1457), 5 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,379 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,379 INFO L175 Difference]: Start difference. First operand has 114 places, 74 transitions, 452 flow. Second operand 5 states and 1457 transitions. [2023-08-25 04:54:02,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 100 transitions, 706 flow [2023-08-25 04:54:02,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 100 transitions, 664 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-25 04:54:02,387 INFO L231 Difference]: Finished difference. Result has 109 places, 74 transitions, 429 flow [2023-08-25 04:54:02,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=109, PETRI_TRANSITIONS=74} [2023-08-25 04:54:02,388 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 04:54:02,388 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 74 transitions, 429 flow [2023-08-25 04:54:02,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:02,388 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] [2023-08-25 04:54:02,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 04:54:02,389 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:02,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:02,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1050976877, now seen corresponding path program 3 times [2023-08-25 04:54:02,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:02,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829604801] [2023-08-25 04:54:02,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:02,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:02,490 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 04:54:02,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:02,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829604801] [2023-08-25 04:54:02,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829604801] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:02,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:02,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:54:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391162012] [2023-08-25 04:54:02,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:02,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:02,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:02,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:02,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:02,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:54:02,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 74 transitions, 429 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:02,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:54:02,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:02,731 INFO L124 PetriNetUnfolderBase]: 423/1110 cut-off events. [2023-08-25 04:54:02,731 INFO L125 PetriNetUnfolderBase]: For 2175/2207 co-relation queries the response was YES. [2023-08-25 04:54:02,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3372 conditions, 1110 events. 423/1110 cut-off events. For 2175/2207 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6989 event pairs, 232 based on Foata normal form. 5/1093 useless extension candidates. Maximal degree in co-relation 3344. Up to 504 conditions per place. [2023-08-25 04:54:02,738 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 58 selfloop transitions, 3 changer transitions 12/100 dead transitions. [2023-08-25 04:54:02,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 100 transitions, 669 flow [2023-08-25 04:54:02,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:02,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:02,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1459 transitions. [2023-08-25 04:54:02,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573667711598746 [2023-08-25 04:54:02,741 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1459 transitions. [2023-08-25 04:54:02,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1459 transitions. [2023-08-25 04:54:02,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:02,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1459 transitions. [2023-08-25 04:54:02,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.8) internal successors, (1459), 5 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,747 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,747 INFO L175 Difference]: Start difference. First operand has 109 places, 74 transitions, 429 flow. Second operand 5 states and 1459 transitions. [2023-08-25 04:54:02,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 100 transitions, 669 flow [2023-08-25 04:54:02,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 100 transitions, 657 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-25 04:54:02,755 INFO L231 Difference]: Finished difference. Result has 109 places, 73 transitions, 424 flow [2023-08-25 04:54:02,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=424, PETRI_PLACES=109, PETRI_TRANSITIONS=73} [2023-08-25 04:54:02,755 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 04:54:02,755 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 73 transitions, 424 flow [2023-08-25 04:54:02,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:02,756 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] [2023-08-25 04:54:02,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 04:54:02,756 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:02,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:02,756 INFO L85 PathProgramCache]: Analyzing trace with hash -2027872018, now seen corresponding path program 3 times [2023-08-25 04:54:02,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:02,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259679340] [2023-08-25 04:54:02,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:02,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:02,953 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 04:54:02,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:02,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259679340] [2023-08-25 04:54:02,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259679340] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:02,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:02,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:54:02,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168455911] [2023-08-25 04:54:02,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:02,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:54:02,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:02,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:54:02,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:54:02,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 638 [2023-08-25 04:54:02,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 73 transitions, 424 flow. Second operand has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:02,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:02,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 638 [2023-08-25 04:54:02,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:03,240 INFO L124 PetriNetUnfolderBase]: 393/1031 cut-off events. [2023-08-25 04:54:03,240 INFO L125 PetriNetUnfolderBase]: For 2156/2192 co-relation queries the response was YES. [2023-08-25 04:54:03,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3217 conditions, 1031 events. 393/1031 cut-off events. For 2156/2192 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6413 event pairs, 116 based on Foata normal form. 10/1017 useless extension candidates. Maximal degree in co-relation 3190. Up to 381 conditions per place. [2023-08-25 04:54:03,245 INFO L140 encePairwiseOnDemand]: 626/638 looper letters, 65 selfloop transitions, 10 changer transitions 12/113 dead transitions. [2023-08-25 04:54:03,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 113 transitions, 734 flow [2023-08-25 04:54:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 04:54:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 04:54:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2260 transitions. [2023-08-25 04:54:03,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427899686520376 [2023-08-25 04:54:03,248 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2260 transitions. [2023-08-25 04:54:03,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2260 transitions. [2023-08-25 04:54:03,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:03,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2260 transitions. [2023-08-25 04:54:03,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 282.5) internal successors, (2260), 8 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,256 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 638.0) internal successors, (5742), 9 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,256 INFO L175 Difference]: Start difference. First operand has 109 places, 73 transitions, 424 flow. Second operand 8 states and 2260 transitions. [2023-08-25 04:54:03,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 113 transitions, 734 flow [2023-08-25 04:54:03,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 723 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 04:54:03,264 INFO L231 Difference]: Finished difference. Result has 112 places, 70 transitions, 421 flow [2023-08-25 04:54:03,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=421, PETRI_PLACES=112, PETRI_TRANSITIONS=70} [2023-08-25 04:54:03,264 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 31 predicate places. [2023-08-25 04:54:03,264 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 70 transitions, 421 flow [2023-08-25 04:54:03,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:03,265 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] [2023-08-25 04:54:03,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 04:54:03,265 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:03,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:03,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1489945679, now seen corresponding path program 3 times [2023-08-25 04:54:03,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:03,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390511868] [2023-08-25 04:54:03,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:03,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:03,370 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 04:54:03,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:03,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390511868] [2023-08-25 04:54:03,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390511868] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:03,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:03,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:54:03,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615963064] [2023-08-25 04:54:03,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:03,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:03,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:03,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 638 [2023-08-25 04:54:03,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 70 transitions, 421 flow. Second operand has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:03,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 638 [2023-08-25 04:54:03,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:03,569 INFO L124 PetriNetUnfolderBase]: 370/978 cut-off events. [2023-08-25 04:54:03,569 INFO L125 PetriNetUnfolderBase]: For 2247/2275 co-relation queries the response was YES. [2023-08-25 04:54:03,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3133 conditions, 978 events. 370/978 cut-off events. For 2247/2275 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5977 event pairs, 200 based on Foata normal form. 8/960 useless extension candidates. Maximal degree in co-relation 3107. Up to 510 conditions per place. [2023-08-25 04:54:03,575 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 48 selfloop transitions, 3 changer transitions 15/91 dead transitions. [2023-08-25 04:54:03,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 91 transitions, 623 flow [2023-08-25 04:54:03,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:03,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1452 transitions. [2023-08-25 04:54:03,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45517241379310347 [2023-08-25 04:54:03,577 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1452 transitions. [2023-08-25 04:54:03,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1452 transitions. [2023-08-25 04:54:03,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:03,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1452 transitions. [2023-08-25 04:54:03,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 290.4) internal successors, (1452), 5 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,582 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,583 INFO L175 Difference]: Start difference. First operand has 112 places, 70 transitions, 421 flow. Second operand 5 states and 1452 transitions. [2023-08-25 04:54:03,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 91 transitions, 623 flow [2023-08-25 04:54:03,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 91 transitions, 601 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-25 04:54:03,589 INFO L231 Difference]: Finished difference. Result has 109 places, 68 transitions, 399 flow [2023-08-25 04:54:03,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=109, PETRI_TRANSITIONS=68} [2023-08-25 04:54:03,590 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 04:54:03,590 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 68 transitions, 399 flow [2023-08-25 04:54:03,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.8) internal successors, (1419), 5 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:03,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:54:03,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 04:54:03,591 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:03,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash 601087770, now seen corresponding path program 1 times [2023-08-25 04:54:03,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:03,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232117924] [2023-08-25 04:54:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:03,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:03,958 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 04:54:03,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:03,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232117924] [2023-08-25 04:54:03,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232117924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:03,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:03,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:54:03,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414248100] [2023-08-25 04:54:03,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:03,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:54:03,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:03,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:54:03,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:54:03,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 638 [2023-08-25 04:54:03,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 68 transitions, 399 flow. Second operand has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:03,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:03,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 638 [2023-08-25 04:54:03,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:04,123 INFO L124 PetriNetUnfolderBase]: 337/894 cut-off events. [2023-08-25 04:54:04,124 INFO L125 PetriNetUnfolderBase]: For 2071/2109 co-relation queries the response was YES. [2023-08-25 04:54:04,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 894 events. 337/894 cut-off events. For 2071/2109 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5392 event pairs, 97 based on Foata normal form. 9/877 useless extension candidates. Maximal degree in co-relation 2846. Up to 335 conditions per place. [2023-08-25 04:54:04,130 INFO L140 encePairwiseOnDemand]: 628/638 looper letters, 49 selfloop transitions, 10 changer transitions 9/93 dead transitions. [2023-08-25 04:54:04,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 93 transitions, 608 flow [2023-08-25 04:54:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1463 transitions. [2023-08-25 04:54:04,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4586206896551724 [2023-08-25 04:54:04,133 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1463 transitions. [2023-08-25 04:54:04,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1463 transitions. [2023-08-25 04:54:04,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:04,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1463 transitions. [2023-08-25 04:54:04,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 292.6) internal successors, (1463), 5 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,138 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,138 INFO L175 Difference]: Start difference. First operand has 109 places, 68 transitions, 399 flow. Second operand 5 states and 1463 transitions. [2023-08-25 04:54:04,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 93 transitions, 608 flow [2023-08-25 04:54:04,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 93 transitions, 600 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 04:54:04,146 INFO L231 Difference]: Finished difference. Result has 109 places, 67 transitions, 408 flow [2023-08-25 04:54:04,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=109, PETRI_TRANSITIONS=67} [2023-08-25 04:54:04,150 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 04:54:04,150 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 67 transitions, 408 flow [2023-08-25 04:54:04,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:04,151 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, 1, 1, 1] [2023-08-25 04:54:04,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 04:54:04,151 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-25 04:54:04,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1087778904, now seen corresponding path program 2 times [2023-08-25 04:54:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384411316] [2023-08-25 04:54:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:04,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:04,411 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 04:54:04,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:04,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384411316] [2023-08-25 04:54:04,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384411316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:04,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:04,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:54:04,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535463827] [2023-08-25 04:54:04,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:04,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:54:04,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:04,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:54:04,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:54:04,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 638 [2023-08-25 04:54:04,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 67 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:04,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 638 [2023-08-25 04:54:04,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:04,559 INFO L124 PetriNetUnfolderBase]: 325/867 cut-off events. [2023-08-25 04:54:04,560 INFO L125 PetriNetUnfolderBase]: For 2143/2181 co-relation queries the response was YES. [2023-08-25 04:54:04,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2885 conditions, 867 events. 325/867 cut-off events. For 2143/2181 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5279 event pairs, 97 based on Foata normal form. 8/849 useless extension candidates. Maximal degree in co-relation 2859. Up to 331 conditions per place. [2023-08-25 04:54:04,564 INFO L140 encePairwiseOnDemand]: 628/638 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-25 04:54:04,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 85 transitions, 587 flow [2023-08-25 04:54:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1455 transitions. [2023-08-25 04:54:04,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4561128526645768 [2023-08-25 04:54:04,566 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1455 transitions. [2023-08-25 04:54:04,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1455 transitions. [2023-08-25 04:54:04,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:04,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1455 transitions. [2023-08-25 04:54:04,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,571 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,571 INFO L175 Difference]: Start difference. First operand has 109 places, 67 transitions, 408 flow. Second operand 5 states and 1455 transitions. [2023-08-25 04:54:04,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 85 transitions, 587 flow [2023-08-25 04:54:04,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 85 transitions, 566 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 04:54:04,577 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2023-08-25 04:54:04,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2023-08-25 04:54:04,579 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-08-25 04:54:04,579 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2023-08-25 04:54:04,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.25) internal successors, (1145), 4 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:04,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2023-08-25 04:54:04,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-08-25 04:54:04,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-08-25 04:54:04,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-08-25 04:54:04,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-08-25 04:54:04,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-08-25 04:54:04,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-08-25 04:54:04,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONASSERT (20 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2023-08-25 04:54:04,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-08-25 04:54:04,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-08-25 04:54:04,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-08-25 04:54:04,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-08-25 04:54:04,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-08-25 04:54:04,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-08-25 04:54:04,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-08-25 04:54:04,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-08-25 04:54:04,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 04:54:04,587 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:54:04,593 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 04:54:04,593 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 04:54:04,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:54:04 BasicIcfg [2023-08-25 04:54:04,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 04:54:04,597 INFO L158 Benchmark]: Toolchain (without parser) took 20568.29ms. Allocated memory was 360.7MB in the beginning and 841.0MB in the end (delta: 480.2MB). Free memory was 336.5MB in the beginning and 703.9MB in the end (delta: -367.4MB). Peak memory consumption was 115.8MB. Max. memory is 16.0GB. [2023-08-25 04:54:04,597 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 360.7MB. Free memory is still 338.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 04:54:04,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.34ms. Allocated memory is still 360.7MB. Free memory was 336.5MB in the beginning and 325.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 04:54:04,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.56ms. Allocated memory is still 360.7MB. Free memory was 325.1MB in the beginning and 323.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 04:54:04,598 INFO L158 Benchmark]: Boogie Preprocessor took 38.18ms. Allocated memory is still 360.7MB. Free memory was 323.0MB in the beginning and 320.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 04:54:04,598 INFO L158 Benchmark]: RCFGBuilder took 598.94ms. Allocated memory is still 360.7MB. Free memory was 320.9MB in the beginning and 297.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-25 04:54:04,598 INFO L158 Benchmark]: TraceAbstraction took 19588.90ms. Allocated memory was 360.7MB in the beginning and 841.0MB in the end (delta: 480.2MB). Free memory was 297.1MB in the beginning and 703.9MB in the end (delta: -406.8MB). Peak memory consumption was 76.0MB. Max. memory is 16.0GB. [2023-08-25 04:54:04,602 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 360.7MB. Free memory is still 338.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 274.34ms. Allocated memory is still 360.7MB. Free memory was 336.5MB in the beginning and 325.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 62.56ms. Allocated memory is still 360.7MB. Free memory was 325.1MB in the beginning and 323.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.18ms. Allocated memory is still 360.7MB. Free memory was 323.0MB in the beginning and 320.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 598.94ms. Allocated memory is still 360.7MB. Free memory was 320.9MB in the beginning and 297.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 19588.90ms. Allocated memory was 360.7MB in the beginning and 841.0MB in the end (delta: 480.2MB). Free memory was 297.1MB in the beginning and 703.9MB in the end (delta: -406.8MB). Peak memory consumption was 76.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.1s, 287 PlacesBefore, 81 PlacesAfterwards, 298 TransitionsBefore, 84 TransitionsAfterwards, 15476 CoEnabledTransitionPairs, 8 FixpointIterations, 152 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 40 ConcurrentYvCompositions, 8 ChoiceCompositions, 329 TotalNumberOfCompositions, 56101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30418, independent: 29481, independent conditional: 0, independent unconditional: 29481, dependent: 937, dependent conditional: 0, dependent unconditional: 937, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9409, independent: 9317, independent conditional: 0, independent unconditional: 9317, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30418, independent: 20164, independent conditional: 0, independent unconditional: 20164, dependent: 845, dependent conditional: 0, dependent unconditional: 845, unknown: 9409, unknown conditional: 0, unknown unconditional: 9409] , Statistics on independence cache: Total cache size (in pairs): 986, Positive cache size: 933, Positive conditional cache size: 0, Positive unconditional cache size: 933, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53, 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: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: 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: 71]: 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: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: 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 5 procedures, 430 locations, 53 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: 19.4s, OverallIterations: 29, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1074 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1074 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4251 IncrementalHoareTripleChecker+Invalid, 4349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 24 mSDtfsCounter, 4251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=654occurred in iteration=14, InterpolantAutomatonStates: 151, 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, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 2824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 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 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 04:54:04,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...