./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f41c28130c65bb66e6565b71877e71077746007ac43c6aef3ce3b863878a53a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:57:59,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:57:59,675 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:57:59,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:57:59,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:57:59,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:57:59,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:57:59,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:57:59,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:57:59,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:57:59,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:57:59,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:57:59,702 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:57:59,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:57:59,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:57:59,703 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:57:59,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:57:59,706 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:57:59,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:57:59,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:57:59,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:57:59,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:57:59,708 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:57:59,708 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:57:59,708 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:57:59,708 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:57:59,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:57:59,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:57:59,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:57:59,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:57:59,710 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:57:59,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:57:59,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:57:59,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:57:59,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:57:59,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:57:59,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:57:59,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:57:59,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:57:59,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:57:59,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:57:59,713 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f41c28130c65bb66e6565b71877e71077746007ac43c6aef3ce3b863878a53a [2024-11-22 17:57:59,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:57:59,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:57:59,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:57:59,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:57:59,934 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:57:59,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-11-22 17:58:01,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:58:01,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:58:01,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-11-22 17:58:01,422 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b5528ed/483769cb0306493b87607e4479a9b163/FLAGcb0145727 [2024-11-22 17:58:01,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b5528ed/483769cb0306493b87607e4479a9b163 [2024-11-22 17:58:01,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:58:01,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:58:01,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:58:01,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:58:01,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:58:01,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:58:01" (1/1) ... [2024-11-22 17:58:01,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac80d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:01, skipping insertion in model container [2024-11-22 17:58:01,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:58:01" (1/1) ... [2024-11-22 17:58:01,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:58:02,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:58:02,033 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:58:02,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:58:02,068 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:58:02,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02 WrapperNode [2024-11-22 17:58:02,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:58:02,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:58:02,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:58:02,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:58:02,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,105 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 298 [2024-11-22 17:58:02,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:58:02,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:58:02,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:58:02,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:58:02,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:58:02,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:58:02,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:58:02,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:58:02,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (1/1) ... [2024-11-22 17:58:02,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:58:02,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:58:02,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:58:02,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:58:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:58:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 17:58:02,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 17:58:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 17:58:02,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 17:58:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-22 17:58:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-22 17:58:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-22 17:58:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-22 17:58:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:58:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-22 17:58:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-22 17:58:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-22 17:58:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-22 17:58:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:58:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:58:02,200 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:58:02,286 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:58:02,287 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:58:02,613 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:58:02,613 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:58:02,648 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:58:02,648 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 17:58:02,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:58:02 BoogieIcfgContainer [2024-11-22 17:58:02,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:58:02,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:58:02,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:58:02,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:58:02,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:58:01" (1/3) ... [2024-11-22 17:58:02,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b61882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:58:02, skipping insertion in model container [2024-11-22 17:58:02,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:58:02" (2/3) ... [2024-11-22 17:58:02,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b61882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:58:02, skipping insertion in model container [2024-11-22 17:58:02,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:58:02" (3/3) ... [2024-11-22 17:58:02,655 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2024-11-22 17:58:02,672 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:58:02,672 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-22 17:58:02,672 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:58:02,778 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-22 17:58:02,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 327 transitions, 696 flow [2024-11-22 17:58:02,929 INFO L124 PetriNetUnfolderBase]: 13/321 cut-off events. [2024-11-22 17:58:02,929 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 17:58:02,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 321 events. 13/321 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 590 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. [2024-11-22 17:58:02,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 327 transitions, 696 flow [2024-11-22 17:58:02,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 311 places, 304 transitions, 641 flow [2024-11-22 17:58:02,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:58:02,964 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@388de682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:58:02,964 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-22 17:58:02,968 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:58:02,968 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-11-22 17:58:02,969 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:58:02,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:02,969 INFO L204 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] [2024-11-22 17:58:02,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:02,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash 608831980, now seen corresponding path program 1 times [2024-11-22 17:58:02,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:02,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942445573] [2024-11-22 17:58:02,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:03,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:03,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942445573] [2024-11-22 17:58:03,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942445573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:03,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:03,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:03,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093114160] [2024-11-22 17:58:03,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:03,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:03,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:03,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:03,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-22 17:58:03,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 304 transitions, 641 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) [2024-11-22 17:58:03,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:03,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-22 17:58:03,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:58:08,418 INFO L124 PetriNetUnfolderBase]: 7855/33572 cut-off events. [2024-11-22 17:58:08,419 INFO L125 PetriNetUnfolderBase]: For 1695/1695 co-relation queries the response was YES. [2024-11-22 17:58:08,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44149 conditions, 33572 events. 7855/33572 cut-off events. For 1695/1695 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 452288 event pairs, 6806 based on Foata normal form. 2909/31360 useless extension candidates. Maximal degree in co-relation 43186. Up to 8993 conditions per place. [2024-11-22 17:58:08,920 INFO L140 encePairwiseOnDemand]: 317/327 looper letters, 28 selfloop transitions, 2 changer transitions 1/296 dead transitions. [2024-11-22 17:58:08,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 296 transitions, 685 flow [2024-11-22 17:58:08,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:58:08,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:58:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2024-11-22 17:58:08,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.910295616717635 [2024-11-22 17:58:08,937 INFO L175 Difference]: Start difference. First operand has 311 places, 304 transitions, 641 flow. Second operand 3 states and 893 transitions. [2024-11-22 17:58:08,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 296 transitions, 685 flow [2024-11-22 17:58:08,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 296 transitions, 664 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-22 17:58:08,952 INFO L231 Difference]: Finished difference. Result has 301 places, 295 transitions, 606 flow [2024-11-22 17:58:08,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=301, PETRI_TRANSITIONS=295} [2024-11-22 17:58:08,959 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -10 predicate places. [2024-11-22 17:58:08,960 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 295 transitions, 606 flow [2024-11-22 17:58:08,961 INFO L472 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) [2024-11-22 17:58:08,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:08,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:58:08,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:58:08,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:08,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1015340394, now seen corresponding path program 1 times [2024-11-22 17:58:08,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:08,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362855077] [2024-11-22 17:58:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:08,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:09,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:09,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362855077] [2024-11-22 17:58:09,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362855077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:09,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:09,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:09,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734881355] [2024-11-22 17:58:09,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:09,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:09,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:09,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:09,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:09,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-22 17:58:09,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 295 transitions, 606 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) [2024-11-22 17:58:09,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:09,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-22 17:58:09,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:58:13,344 INFO L124 PetriNetUnfolderBase]: 8501/35560 cut-off events. [2024-11-22 17:58:13,344 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-22 17:58:13,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46320 conditions, 35560 events. 8501/35560 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 481935 event pairs, 7398 based on Foata normal form. 0/30126 useless extension candidates. Maximal degree in co-relation 46282. Up to 9745 conditions per place. [2024-11-22 17:58:13,903 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/294 dead transitions. [2024-11-22 17:58:13,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 294 transitions, 664 flow [2024-11-22 17:58:13,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:58:13,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:58:13,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-22 17:58:13,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-22 17:58:13,906 INFO L175 Difference]: Start difference. First operand has 301 places, 295 transitions, 606 flow. Second operand 3 states and 886 transitions. [2024-11-22 17:58:13,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 294 transitions, 664 flow [2024-11-22 17:58:13,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 294 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:58:13,912 INFO L231 Difference]: Finished difference. Result has 299 places, 294 transitions, 604 flow [2024-11-22 17:58:13,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=299, PETRI_TRANSITIONS=294} [2024-11-22 17:58:13,913 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -12 predicate places. [2024-11-22 17:58:13,913 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 294 transitions, 604 flow [2024-11-22 17:58:13,914 INFO L472 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) [2024-11-22 17:58:13,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:13,914 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:58:13,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:58:13,914 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:13,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:13,915 INFO L85 PathProgramCache]: Analyzing trace with hash -157440509, now seen corresponding path program 1 times [2024-11-22 17:58:13,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160505091] [2024-11-22 17:58:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:13,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:13,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:13,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:13,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160505091] [2024-11-22 17:58:13,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160505091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:13,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:13,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568403483] [2024-11-22 17:58:13,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:13,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:13,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:13,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:13,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-22 17:58:13,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 294 transitions, 604 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) [2024-11-22 17:58:13,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:13,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-22 17:58:13,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:58:17,979 INFO L124 PetriNetUnfolderBase]: 8623/34961 cut-off events. [2024-11-22 17:58:17,979 INFO L125 PetriNetUnfolderBase]: For 579/579 co-relation queries the response was YES. [2024-11-22 17:58:18,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45915 conditions, 34961 events. 8623/34961 cut-off events. For 579/579 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 469021 event pairs, 7550 based on Foata normal form. 0/29548 useless extension candidates. Maximal degree in co-relation 45869. Up to 9945 conditions per place. [2024-11-22 17:58:18,395 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2024-11-22 17:58:18,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 293 transitions, 662 flow [2024-11-22 17:58:18,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:58:18,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:58:18,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-22 17:58:18,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-22 17:58:18,401 INFO L175 Difference]: Start difference. First operand has 299 places, 294 transitions, 604 flow. Second operand 3 states and 886 transitions. [2024-11-22 17:58:18,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 293 transitions, 662 flow [2024-11-22 17:58:18,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:58:18,406 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 602 flow [2024-11-22 17:58:18,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-11-22 17:58:18,408 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -13 predicate places. [2024-11-22 17:58:18,409 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 602 flow [2024-11-22 17:58:18,409 INFO L472 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) [2024-11-22 17:58:18,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:18,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:58:18,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:58:18,410 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:18,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:18,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1133754814, now seen corresponding path program 1 times [2024-11-22 17:58:18,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:18,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86144557] [2024-11-22 17:58:18,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:18,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:18,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:18,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86144557] [2024-11-22 17:58:18,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86144557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:18,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:18,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:18,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855558505] [2024-11-22 17:58:18,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:18,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:18,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:18,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:18,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:18,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-22 17:58:18,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 602 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) [2024-11-22 17:58:18,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:18,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-22 17:58:18,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:58:22,509 INFO L124 PetriNetUnfolderBase]: 8515/32260 cut-off events. [2024-11-22 17:58:22,509 INFO L125 PetriNetUnfolderBase]: For 597/597 co-relation queries the response was YES. [2024-11-22 17:58:22,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43196 conditions, 32260 events. 8515/32260 cut-off events. For 597/597 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 418837 event pairs, 7550 based on Foata normal form. 0/27159 useless extension candidates. Maximal degree in co-relation 43142. Up to 9945 conditions per place. [2024-11-22 17:58:22,920 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/292 dead transitions. [2024-11-22 17:58:22,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 292 transitions, 660 flow [2024-11-22 17:58:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:58:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:58:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-22 17:58:22,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-22 17:58:22,923 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 602 flow. Second operand 3 states and 886 transitions. [2024-11-22 17:58:22,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 292 transitions, 660 flow [2024-11-22 17:58:22,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 292 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:58:22,927 INFO L231 Difference]: Finished difference. Result has 297 places, 292 transitions, 600 flow [2024-11-22 17:58:22,928 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=297, PETRI_TRANSITIONS=292} [2024-11-22 17:58:22,928 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -14 predicate places. [2024-11-22 17:58:22,929 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 292 transitions, 600 flow [2024-11-22 17:58:22,929 INFO L472 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) [2024-11-22 17:58:22,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:22,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:58:22,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:58:22,930 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:22,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2019753792, now seen corresponding path program 1 times [2024-11-22 17:58:22,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:22,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953836674] [2024-11-22 17:58:22,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:22,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:22,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:22,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953836674] [2024-11-22 17:58:22,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953836674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:22,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:22,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:22,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995382186] [2024-11-22 17:58:22,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:22,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:22,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:22,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:22,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:22,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-22 17:58:22,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 292 transitions, 600 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) [2024-11-22 17:58:22,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:22,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-22 17:58:22,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:58:26,585 INFO L124 PetriNetUnfolderBase]: 8177/27457 cut-off events. [2024-11-22 17:58:26,586 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2024-11-22 17:58:26,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38139 conditions, 27457 events. 8177/27457 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 335941 event pairs, 7398 based on Foata normal form. 0/23073 useless extension candidates. Maximal degree in co-relation 38077. Up to 9745 conditions per place. [2024-11-22 17:58:26,886 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2024-11-22 17:58:26,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 291 transitions, 658 flow [2024-11-22 17:58:26,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:58:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:58:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-22 17:58:26,888 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-22 17:58:26,888 INFO L175 Difference]: Start difference. First operand has 297 places, 292 transitions, 600 flow. Second operand 3 states and 886 transitions. [2024-11-22 17:58:26,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 291 transitions, 658 flow [2024-11-22 17:58:26,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 291 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:58:26,892 INFO L231 Difference]: Finished difference. Result has 296 places, 291 transitions, 598 flow [2024-11-22 17:58:26,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=296, PETRI_TRANSITIONS=291} [2024-11-22 17:58:26,893 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -15 predicate places. [2024-11-22 17:58:26,893 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 291 transitions, 598 flow [2024-11-22 17:58:26,893 INFO L472 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) [2024-11-22 17:58:26,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:26,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:58:26,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:58:26,894 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:26,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:26,895 INFO L85 PathProgramCache]: Analyzing trace with hash 969486859, now seen corresponding path program 1 times [2024-11-22 17:58:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:26,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279761604] [2024-11-22 17:58:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:26,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:26,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:26,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:26,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279761604] [2024-11-22 17:58:26,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279761604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:26,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:26,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:26,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952310845] [2024-11-22 17:58:26,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:26,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:26,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:26,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:26,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:26,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-22 17:58:26,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 291 transitions, 598 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) [2024-11-22 17:58:26,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:26,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-22 17:58:26,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:58:31,769 INFO L124 PetriNetUnfolderBase]: 7863/33824 cut-off events. [2024-11-22 17:58:31,770 INFO L125 PetriNetUnfolderBase]: For 605/605 co-relation queries the response was YES. [2024-11-22 17:58:31,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43430 conditions, 33824 events. 7863/33824 cut-off events. For 605/605 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 452548 event pairs, 6806 based on Foata normal form. 0/28685 useless extension candidates. Maximal degree in co-relation 43360. Up to 8993 conditions per place. [2024-11-22 17:58:32,104 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/290 dead transitions. [2024-11-22 17:58:32,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 290 transitions, 656 flow [2024-11-22 17:58:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:58:32,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:58:32,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-22 17:58:32,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-22 17:58:32,106 INFO L175 Difference]: Start difference. First operand has 296 places, 291 transitions, 598 flow. Second operand 3 states and 886 transitions. [2024-11-22 17:58:32,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 290 transitions, 656 flow [2024-11-22 17:58:32,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 290 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:58:32,109 INFO L231 Difference]: Finished difference. Result has 295 places, 290 transitions, 596 flow [2024-11-22 17:58:32,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=295, PETRI_TRANSITIONS=290} [2024-11-22 17:58:32,110 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -16 predicate places. [2024-11-22 17:58:32,110 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 290 transitions, 596 flow [2024-11-22 17:58:32,111 INFO L472 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) [2024-11-22 17:58:32,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:32,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:58:32,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:58:32,111 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:32,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1707781637, now seen corresponding path program 1 times [2024-11-22 17:58:32,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:32,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822617230] [2024-11-22 17:58:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:32,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:32,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:32,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822617230] [2024-11-22 17:58:32,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822617230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:32,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:32,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:32,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112630628] [2024-11-22 17:58:32,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:32,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:32,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:32,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:32,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:32,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 327 [2024-11-22 17:58:32,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 290 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:58:32,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:32,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 327 [2024-11-22 17:58:32,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:58:37,040 INFO L124 PetriNetUnfolderBase]: 11593/41062 cut-off events. [2024-11-22 17:58:37,040 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-22 17:58:37,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56411 conditions, 41062 events. 11593/41062 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 1400. Compared 553783 event pairs, 8021 based on Foata normal form. 0/34963 useless extension candidates. Maximal degree in co-relation 56333. Up to 10570 conditions per place. [2024-11-22 17:58:37,598 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 42 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2024-11-22 17:58:37,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 304 transitions, 718 flow [2024-11-22 17:58:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:58:37,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:58:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2024-11-22 17:58:37,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235474006116208 [2024-11-22 17:58:37,600 INFO L175 Difference]: Start difference. First operand has 295 places, 290 transitions, 596 flow. Second operand 3 states and 906 transitions. [2024-11-22 17:58:37,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 304 transitions, 718 flow [2024-11-22 17:58:37,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 304 transitions, 714 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:58:37,604 INFO L231 Difference]: Finished difference. Result has 294 places, 289 transitions, 594 flow [2024-11-22 17:58:37,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=594, PETRI_PLACES=294, PETRI_TRANSITIONS=289} [2024-11-22 17:58:37,605 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -17 predicate places. [2024-11-22 17:58:37,605 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 289 transitions, 594 flow [2024-11-22 17:58:37,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:58:37,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:58:37,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:58:37,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:58:37,607 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-22 17:58:37,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:58:37,607 INFO L85 PathProgramCache]: Analyzing trace with hash -61215234, now seen corresponding path program 1 times [2024-11-22 17:58:37,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:58:37,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034216629] [2024-11-22 17:58:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:58:37,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:58:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:58:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:58:37,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:58:37,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034216629] [2024-11-22 17:58:37,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034216629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:58:37,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:58:37,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:58:37,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832307261] [2024-11-22 17:58:37,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:58:37,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:58:37,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:58:37,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:58:37,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:58:37,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 327 [2024-11-22 17:58:37,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 289 transitions, 594 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) [2024-11-22 17:58:37,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:58:37,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 327 [2024-11-22 17:58:37,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand