./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.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 c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:12:05,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:12:05,425 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:12:05,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:12:05,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:12:05,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:12:05,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:12:05,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:12:05,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:12:05,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:12:05,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:12:05,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:12:05,452 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:12:05,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:12:05,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:12:05,454 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:12:05,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:12:05,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:12:05,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:12:05,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:12:05,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:12:05,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:12:05,459 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:12:05,459 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:12:05,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:12:05,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:12:05,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:12:05,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:12:05,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:12:05,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:12:05,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:12:05,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:12:05,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:12:05,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:12:05,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:12:05,462 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:12:05,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:12:05,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:12:05,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:12:05,463 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:12:05,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:12:05,463 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2024-10-14 17:12:05,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:12:05,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:12:05,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:12:05,699 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:12:05,700 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:12:05,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-10-14 17:12:07,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:12:07,237 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:12:07,238 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-10-14 17:12:07,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b4738e0/3a96194fe9674a1d9f68f362d06ce60c/FLAG1887f8b39 [2024-10-14 17:12:07,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b4738e0/3a96194fe9674a1d9f68f362d06ce60c [2024-10-14 17:12:07,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:12:07,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:12:07,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:12:07,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:12:07,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:12:07,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc7434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07, skipping insertion in model container [2024-10-14 17:12:07,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:12:07,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:12:07,498 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:12:07,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:12:07,562 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:12:07,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07 WrapperNode [2024-10-14 17:12:07,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:12:07,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:12:07,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:12:07,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:12:07,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,650 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 793 [2024-10-14 17:12:07,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:12:07,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:12:07,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:12:07,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:12:07,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:12:07,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:12:07,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:12:07,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:12:07,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (1/1) ... [2024-10-14 17:12:07,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:12:07,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:12:07,797 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) [2024-10-14 17:12:07,807 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 [2024-10-14 17:12:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:12:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:12:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:12:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 17:12:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 17:12:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 17:12:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 17:12:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 17:12:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 17:12:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:12:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:12:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:12:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:12:07,851 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:12:08,015 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:12:08,017 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:12:08,933 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:12:08,933 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:12:08,976 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:12:08,976 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-14 17:12:08,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:12:08 BoogieIcfgContainer [2024-10-14 17:12:08,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:12:08,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:12:08,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:12:08,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:12:08,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:12:07" (1/3) ... [2024-10-14 17:12:08,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c219220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:12:08, skipping insertion in model container [2024-10-14 17:12:08,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:12:07" (2/3) ... [2024-10-14 17:12:08,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c219220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:12:08, skipping insertion in model container [2024-10-14 17:12:08,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:12:08" (3/3) ... [2024-10-14 17:12:08,991 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2024-10-14 17:12:09,014 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:12:09,019 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 114 error locations. [2024-10-14 17:12:09,019 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:12:09,268 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 17:12:09,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1010 places, 1048 transitions, 2117 flow [2024-10-14 17:12:09,934 INFO L124 PetriNetUnfolderBase]: 48/1045 cut-off events. [2024-10-14 17:12:09,936 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 17:12:09,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 1045 events. 48/1045 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2154 event pairs, 0 based on Foata normal form. 0/883 useless extension candidates. Maximal degree in co-relation 855. Up to 2 conditions per place. [2024-10-14 17:12:09,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 1010 places, 1048 transitions, 2117 flow [2024-10-14 17:12:10,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 988 places, 1024 transitions, 2066 flow [2024-10-14 17:12:10,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:12:10,035 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;@66291cbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:12:10,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 192 error locations. [2024-10-14 17:12:10,048 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:12:10,048 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-14 17:12:10,049 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:12:10,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:10,053 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] [2024-10-14 17:12:10,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:10,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1350031626, now seen corresponding path program 1 times [2024-10-14 17:12:10,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:10,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852304525] [2024-10-14 17:12:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:10,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:10,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:10,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852304525] [2024-10-14 17:12:10,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852304525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:10,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:10,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:10,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262035889] [2024-10-14 17:12:10,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:10,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:10,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:10,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:10,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1048 [2024-10-14 17:12:10,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 988 places, 1024 transitions, 2066 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:10,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:10,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1048 [2024-10-14 17:12:10,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:11,513 INFO L124 PetriNetUnfolderBase]: 54/1757 cut-off events. [2024-10-14 17:12:11,517 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-14 17:12:11,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 1757 events. 54/1757 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8002 event pairs, 21 based on Foata normal form. 59/1515 useless extension candidates. Maximal degree in co-relation 1271. Up to 62 conditions per place. [2024-10-14 17:12:11,590 INFO L140 encePairwiseOnDemand]: 1017/1048 looper letters, 19 selfloop transitions, 2 changer transitions 16/995 dead transitions. [2024-10-14 17:12:11,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 989 places, 995 transitions, 2050 flow [2024-10-14 17:12:11,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:11,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3035 transitions. [2024-10-14 17:12:11,620 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9653307888040712 [2024-10-14 17:12:11,622 INFO L175 Difference]: Start difference. First operand has 988 places, 1024 transitions, 2066 flow. Second operand 3 states and 3035 transitions. [2024-10-14 17:12:11,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 989 places, 995 transitions, 2050 flow [2024-10-14 17:12:11,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 983 places, 995 transitions, 2038 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 17:12:11,664 INFO L231 Difference]: Finished difference. Result has 983 places, 979 transitions, 1968 flow [2024-10-14 17:12:11,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1996, PETRI_DIFFERENCE_MINUEND_PLACES=981, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=995, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1968, PETRI_PLACES=983, PETRI_TRANSITIONS=979} [2024-10-14 17:12:11,675 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -5 predicate places. [2024-10-14 17:12:11,679 INFO L471 AbstractCegarLoop]: Abstraction has has 983 places, 979 transitions, 1968 flow [2024-10-14 17:12:11,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:11,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:11,681 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] [2024-10-14 17:12:11,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:12:11,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:11,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:11,682 INFO L85 PathProgramCache]: Analyzing trace with hash 860022617, now seen corresponding path program 1 times [2024-10-14 17:12:11,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:11,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706163511] [2024-10-14 17:12:11,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:11,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:11,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:11,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706163511] [2024-10-14 17:12:11,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706163511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:11,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:11,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:11,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867097427] [2024-10-14 17:12:11,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:11,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:11,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:11,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:11,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1048 [2024-10-14 17:12:11,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 983 places, 979 transitions, 1968 flow. Second operand has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:11,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:11,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1048 [2024-10-14 17:12:11,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:12,513 INFO L124 PetriNetUnfolderBase]: 114/2523 cut-off events. [2024-10-14 17:12:12,513 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-14 17:12:12,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 2523 events. 114/2523 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 15113 event pairs, 60 based on Foata normal form. 0/2116 useless extension candidates. Maximal degree in co-relation 2647. Up to 146 conditions per place. [2024-10-14 17:12:12,570 INFO L140 encePairwiseOnDemand]: 1037/1048 looper letters, 26 selfloop transitions, 1 changer transitions 0/969 dead transitions. [2024-10-14 17:12:12,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 969 transitions, 2002 flow [2024-10-14 17:12:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:12,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2980 transitions. [2024-10-14 17:12:12,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9478371501272265 [2024-10-14 17:12:12,576 INFO L175 Difference]: Start difference. First operand has 983 places, 979 transitions, 1968 flow. Second operand 3 states and 2980 transitions. [2024-10-14 17:12:12,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 969 transitions, 2002 flow [2024-10-14 17:12:12,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 969 transitions, 1998 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:12,587 INFO L231 Difference]: Finished difference. Result has 957 places, 969 transitions, 1946 flow [2024-10-14 17:12:12,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1944, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1946, PETRI_PLACES=957, PETRI_TRANSITIONS=969} [2024-10-14 17:12:12,593 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -31 predicate places. [2024-10-14 17:12:12,593 INFO L471 AbstractCegarLoop]: Abstraction has has 957 places, 969 transitions, 1946 flow [2024-10-14 17:12:12,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:12,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:12,595 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] [2024-10-14 17:12:12,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:12:12,595 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:12,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1639064396, now seen corresponding path program 1 times [2024-10-14 17:12:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:12,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48783263] [2024-10-14 17:12:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:12,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:12,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:12,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48783263] [2024-10-14 17:12:12,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48783263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:12,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:12,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:12,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859639596] [2024-10-14 17:12:12,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:12,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:12,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:12,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:12,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:12,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1048 [2024-10-14 17:12:12,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 969 transitions, 1946 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:12,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:12,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1048 [2024-10-14 17:12:12,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:13,361 INFO L124 PetriNetUnfolderBase]: 90/2666 cut-off events. [2024-10-14 17:12:13,361 INFO L125 PetriNetUnfolderBase]: For 5/9 co-relation queries the response was YES. [2024-10-14 17:12:13,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 2666 events. 90/2666 cut-off events. For 5/9 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16387 event pairs, 39 based on Foata normal form. 0/2208 useless extension candidates. Maximal degree in co-relation 2738. Up to 89 conditions per place. [2024-10-14 17:12:13,395 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 19 selfloop transitions, 2 changer transitions 0/968 dead transitions. [2024-10-14 17:12:13,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 968 transitions, 1986 flow [2024-10-14 17:12:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:13,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3007 transitions. [2024-10-14 17:12:13,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9564249363867684 [2024-10-14 17:12:13,405 INFO L175 Difference]: Start difference. First operand has 957 places, 969 transitions, 1946 flow. Second operand 3 states and 3007 transitions. [2024-10-14 17:12:13,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 968 transitions, 1986 flow [2024-10-14 17:12:13,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 968 transitions, 1985 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:12:13,416 INFO L231 Difference]: Finished difference. Result has 957 places, 968 transitions, 1947 flow [2024-10-14 17:12:13,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1947, PETRI_PLACES=957, PETRI_TRANSITIONS=968} [2024-10-14 17:12:13,418 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -31 predicate places. [2024-10-14 17:12:13,418 INFO L471 AbstractCegarLoop]: Abstraction has has 957 places, 968 transitions, 1947 flow [2024-10-14 17:12:13,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:13,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:13,420 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] [2024-10-14 17:12:13,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:12:13,421 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:13,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:13,421 INFO L85 PathProgramCache]: Analyzing trace with hash 752671738, now seen corresponding path program 1 times [2024-10-14 17:12:13,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:13,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323100941] [2024-10-14 17:12:13,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:13,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:13,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:13,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323100941] [2024-10-14 17:12:13,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323100941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:13,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:13,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:13,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566546947] [2024-10-14 17:12:13,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:13,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:13,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:13,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:13,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:13,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1048 [2024-10-14 17:12:13,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 968 transitions, 1947 flow. Second operand has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:13,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:13,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1048 [2024-10-14 17:12:13,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:14,510 INFO L124 PetriNetUnfolderBase]: 225/3970 cut-off events. [2024-10-14 17:12:14,511 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-14 17:12:14,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4298 conditions, 3970 events. 225/3970 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 30239 event pairs, 132 based on Foata normal form. 0/3337 useless extension candidates. Maximal degree in co-relation 4256. Up to 264 conditions per place. [2024-10-14 17:12:14,554 INFO L140 encePairwiseOnDemand]: 1037/1048 looper letters, 26 selfloop transitions, 1 changer transitions 0/958 dead transitions. [2024-10-14 17:12:14,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 958 transitions, 1981 flow [2024-10-14 17:12:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2980 transitions. [2024-10-14 17:12:14,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9478371501272265 [2024-10-14 17:12:14,559 INFO L175 Difference]: Start difference. First operand has 957 places, 968 transitions, 1947 flow. Second operand 3 states and 2980 transitions. [2024-10-14 17:12:14,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 958 transitions, 1981 flow [2024-10-14 17:12:14,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 958 transitions, 1977 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:14,568 INFO L231 Difference]: Finished difference. Result has 947 places, 958 transitions, 1925 flow [2024-10-14 17:12:14,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1925, PETRI_PLACES=947, PETRI_TRANSITIONS=958} [2024-10-14 17:12:14,570 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -41 predicate places. [2024-10-14 17:12:14,570 INFO L471 AbstractCegarLoop]: Abstraction has has 947 places, 958 transitions, 1925 flow [2024-10-14 17:12:14,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:14,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:14,572 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] [2024-10-14 17:12:14,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:12:14,572 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:14,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1448313385, now seen corresponding path program 1 times [2024-10-14 17:12:14,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:14,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120375722] [2024-10-14 17:12:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:14,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:14,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:14,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120375722] [2024-10-14 17:12:14,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120375722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:14,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:14,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:14,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180453656] [2024-10-14 17:12:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:14,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:14,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:14,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:14,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:14,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1048 [2024-10-14 17:12:14,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 958 transitions, 1925 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:14,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:14,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1048 [2024-10-14 17:12:14,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:15,009 INFO L124 PetriNetUnfolderBase]: 75/1833 cut-off events. [2024-10-14 17:12:15,009 INFO L125 PetriNetUnfolderBase]: For 20/47 co-relation queries the response was YES. [2024-10-14 17:12:15,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1934 conditions, 1833 events. 75/1833 cut-off events. For 20/47 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 8414 event pairs, 39 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 1891. Up to 89 conditions per place. [2024-10-14 17:12:15,035 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 19 selfloop transitions, 2 changer transitions 0/957 dead transitions. [2024-10-14 17:12:15,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 957 transitions, 1965 flow [2024-10-14 17:12:15,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3007 transitions. [2024-10-14 17:12:15,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9564249363867684 [2024-10-14 17:12:15,040 INFO L175 Difference]: Start difference. First operand has 947 places, 958 transitions, 1925 flow. Second operand 3 states and 3007 transitions. [2024-10-14 17:12:15,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 957 transitions, 1965 flow [2024-10-14 17:12:15,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 957 transitions, 1964 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:12:15,053 INFO L231 Difference]: Finished difference. Result has 947 places, 957 transitions, 1926 flow [2024-10-14 17:12:15,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1922, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1926, PETRI_PLACES=947, PETRI_TRANSITIONS=957} [2024-10-14 17:12:15,055 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -41 predicate places. [2024-10-14 17:12:15,056 INFO L471 AbstractCegarLoop]: Abstraction has has 947 places, 957 transitions, 1926 flow [2024-10-14 17:12:15,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:15,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:15,057 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] [2024-10-14 17:12:15,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:12:15,058 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:15,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:15,058 INFO L85 PathProgramCache]: Analyzing trace with hash 573038134, now seen corresponding path program 1 times [2024-10-14 17:12:15,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:15,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321259067] [2024-10-14 17:12:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:15,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:15,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:15,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321259067] [2024-10-14 17:12:15,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321259067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:15,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:15,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:15,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832578925] [2024-10-14 17:12:15,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:15,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:15,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:15,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:15,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:15,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1048 [2024-10-14 17:12:15,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 957 transitions, 1926 flow. Second operand has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:15,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:15,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1048 [2024-10-14 17:12:15,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:16,279 INFO L124 PetriNetUnfolderBase]: 227/3703 cut-off events. [2024-10-14 17:12:16,279 INFO L125 PetriNetUnfolderBase]: For 65/94 co-relation queries the response was YES. [2024-10-14 17:12:16,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3994 conditions, 3703 events. 227/3703 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 26982 event pairs, 132 based on Foata normal form. 0/3155 useless extension candidates. Maximal degree in co-relation 3952. Up to 274 conditions per place. [2024-10-14 17:12:16,323 INFO L140 encePairwiseOnDemand]: 1037/1048 looper letters, 26 selfloop transitions, 1 changer transitions 0/947 dead transitions. [2024-10-14 17:12:16,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 947 transitions, 1960 flow [2024-10-14 17:12:16,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:16,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:16,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2980 transitions. [2024-10-14 17:12:16,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9478371501272265 [2024-10-14 17:12:16,328 INFO L175 Difference]: Start difference. First operand has 947 places, 957 transitions, 1926 flow. Second operand 3 states and 2980 transitions. [2024-10-14 17:12:16,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 939 places, 947 transitions, 1960 flow [2024-10-14 17:12:16,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 947 transitions, 1956 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:16,339 INFO L231 Difference]: Finished difference. Result has 937 places, 947 transitions, 1904 flow [2024-10-14 17:12:16,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1902, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1904, PETRI_PLACES=937, PETRI_TRANSITIONS=947} [2024-10-14 17:12:16,342 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -51 predicate places. [2024-10-14 17:12:16,342 INFO L471 AbstractCegarLoop]: Abstraction has has 937 places, 947 transitions, 1904 flow [2024-10-14 17:12:16,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:16,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:16,344 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] [2024-10-14 17:12:16,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:12:16,344 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:16,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:16,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1789936871, now seen corresponding path program 1 times [2024-10-14 17:12:16,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:16,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629803060] [2024-10-14 17:12:16,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:16,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:16,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:16,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629803060] [2024-10-14 17:12:16,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629803060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:16,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:16,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:16,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746448588] [2024-10-14 17:12:16,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:16,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:16,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:16,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:16,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:16,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1003 out of 1048 [2024-10-14 17:12:16,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 947 transitions, 1904 flow. Second operand has 3 states, 3 states have (on average 1004.3333333333334) internal successors, (3013), 3 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:16,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:16,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1003 of 1048 [2024-10-14 17:12:16,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:16,592 INFO L124 PetriNetUnfolderBase]: 26/1247 cut-off events. [2024-10-14 17:12:16,596 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-10-14 17:12:16,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 1247 events. 26/1247 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3288 event pairs, 2 based on Foata normal form. 0/1094 useless extension candidates. Maximal degree in co-relation 1232. Up to 16 conditions per place. [2024-10-14 17:12:16,629 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 11 selfloop transitions, 2 changer transitions 0/946 dead transitions. [2024-10-14 17:12:16,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 946 transitions, 1928 flow [2024-10-14 17:12:16,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2024-10-14 17:12:16,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9615139949109415 [2024-10-14 17:12:16,634 INFO L175 Difference]: Start difference. First operand has 937 places, 947 transitions, 1904 flow. Second operand 3 states and 3023 transitions. [2024-10-14 17:12:16,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 946 transitions, 1928 flow [2024-10-14 17:12:16,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 946 transitions, 1927 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:12:16,646 INFO L231 Difference]: Finished difference. Result has 937 places, 946 transitions, 1905 flow [2024-10-14 17:12:16,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1901, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1905, PETRI_PLACES=937, PETRI_TRANSITIONS=946} [2024-10-14 17:12:16,648 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -51 predicate places. [2024-10-14 17:12:16,649 INFO L471 AbstractCegarLoop]: Abstraction has has 937 places, 946 transitions, 1905 flow [2024-10-14 17:12:16,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1004.3333333333334) internal successors, (3013), 3 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:16,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:16,651 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] [2024-10-14 17:12:16,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:12:16,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:16,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:16,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2041858837, now seen corresponding path program 1 times [2024-10-14 17:12:16,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:16,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578966129] [2024-10-14 17:12:16,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:16,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:16,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:16,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578966129] [2024-10-14 17:12:16,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578966129] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:16,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:16,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:16,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260409438] [2024-10-14 17:12:16,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:16,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:16,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:16,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:16,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:16,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1002 out of 1048 [2024-10-14 17:12:16,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 946 transitions, 1905 flow. Second operand has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:16,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:16,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1002 of 1048 [2024-10-14 17:12:16,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:17,052 INFO L124 PetriNetUnfolderBase]: 42/1848 cut-off events. [2024-10-14 17:12:17,053 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2024-10-14 17:12:17,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1891 conditions, 1848 events. 42/1848 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8271 event pairs, 6 based on Foata normal form. 0/1598 useless extension candidates. Maximal degree in co-relation 1848. Up to 25 conditions per place. [2024-10-14 17:12:17,076 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 12 selfloop transitions, 2 changer transitions 0/945 dead transitions. [2024-10-14 17:12:17,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 945 transitions, 1931 flow [2024-10-14 17:12:17,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2024-10-14 17:12:17,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9608778625954199 [2024-10-14 17:12:17,081 INFO L175 Difference]: Start difference. First operand has 937 places, 946 transitions, 1905 flow. Second operand 3 states and 3021 transitions. [2024-10-14 17:12:17,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 945 transitions, 1931 flow [2024-10-14 17:12:17,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 945 transitions, 1927 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:17,091 INFO L231 Difference]: Finished difference. Result has 936 places, 945 transitions, 1903 flow [2024-10-14 17:12:17,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1899, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1903, PETRI_PLACES=936, PETRI_TRANSITIONS=945} [2024-10-14 17:12:17,093 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -52 predicate places. [2024-10-14 17:12:17,093 INFO L471 AbstractCegarLoop]: Abstraction has has 936 places, 945 transitions, 1903 flow [2024-10-14 17:12:17,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:17,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:17,095 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] [2024-10-14 17:12:17,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:12:17,095 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:17,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:17,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1369086112, now seen corresponding path program 1 times [2024-10-14 17:12:17,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:17,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867579465] [2024-10-14 17:12:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:17,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:17,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:17,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867579465] [2024-10-14 17:12:17,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867579465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:17,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:17,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:17,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198757563] [2024-10-14 17:12:17,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:17,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:17,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:17,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:17,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:17,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1002 out of 1048 [2024-10-14 17:12:17,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 945 transitions, 1903 flow. Second operand has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:17,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:17,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1002 of 1048 [2024-10-14 17:12:17,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:17,420 INFO L124 PetriNetUnfolderBase]: 42/1847 cut-off events. [2024-10-14 17:12:17,421 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2024-10-14 17:12:17,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1890 conditions, 1847 events. 42/1847 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8260 event pairs, 6 based on Foata normal form. 0/1598 useless extension candidates. Maximal degree in co-relation 1847. Up to 25 conditions per place. [2024-10-14 17:12:17,455 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 12 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2024-10-14 17:12:17,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 944 transitions, 1929 flow [2024-10-14 17:12:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:17,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2024-10-14 17:12:17,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9608778625954199 [2024-10-14 17:12:17,459 INFO L175 Difference]: Start difference. First operand has 936 places, 945 transitions, 1903 flow. Second operand 3 states and 3021 transitions. [2024-10-14 17:12:17,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 944 transitions, 1929 flow [2024-10-14 17:12:17,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 944 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:17,470 INFO L231 Difference]: Finished difference. Result has 935 places, 944 transitions, 1901 flow [2024-10-14 17:12:17,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=935, PETRI_TRANSITIONS=944} [2024-10-14 17:12:17,472 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -53 predicate places. [2024-10-14 17:12:17,472 INFO L471 AbstractCegarLoop]: Abstraction has has 935 places, 944 transitions, 1901 flow [2024-10-14 17:12:17,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:17,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:17,474 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] [2024-10-14 17:12:17,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:12:17,474 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:17,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:17,474 INFO L85 PathProgramCache]: Analyzing trace with hash 41052617, now seen corresponding path program 1 times [2024-10-14 17:12:17,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:17,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980988671] [2024-10-14 17:12:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:17,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:17,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:17,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:17,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980988671] [2024-10-14 17:12:17,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980988671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:17,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:17,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:17,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142425966] [2024-10-14 17:12:17,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:17,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:17,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:17,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:17,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:17,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1003 out of 1048 [2024-10-14 17:12:17,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1004.3333333333334) internal successors, (3013), 3 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:17,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:17,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1003 of 1048 [2024-10-14 17:12:17,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:17,671 INFO L124 PetriNetUnfolderBase]: 23/1094 cut-off events. [2024-10-14 17:12:17,671 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2024-10-14 17:12:17,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 1094 events. 23/1094 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2533 event pairs, 2 based on Foata normal form. 0/969 useless extension candidates. Maximal degree in co-relation 1080. Up to 16 conditions per place. [2024-10-14 17:12:17,689 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 11 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2024-10-14 17:12:17,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 943 transitions, 1925 flow [2024-10-14 17:12:17,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:17,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2024-10-14 17:12:17,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9615139949109415 [2024-10-14 17:12:17,693 INFO L175 Difference]: Start difference. First operand has 935 places, 944 transitions, 1901 flow. Second operand 3 states and 3023 transitions. [2024-10-14 17:12:17,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 943 transitions, 1925 flow [2024-10-14 17:12:17,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 943 transitions, 1921 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:17,715 INFO L231 Difference]: Finished difference. Result has 934 places, 943 transitions, 1899 flow [2024-10-14 17:12:17,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=934, PETRI_TRANSITIONS=943} [2024-10-14 17:12:17,720 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -54 predicate places. [2024-10-14 17:12:17,721 INFO L471 AbstractCegarLoop]: Abstraction has has 934 places, 943 transitions, 1899 flow [2024-10-14 17:12:17,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1004.3333333333334) internal successors, (3013), 3 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:17,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:17,726 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:17,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:12:17,726 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:17,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:17,727 INFO L85 PathProgramCache]: Analyzing trace with hash -327954564, now seen corresponding path program 1 times [2024-10-14 17:12:17,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:17,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268368542] [2024-10-14 17:12:17,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:17,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:17,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:17,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268368542] [2024-10-14 17:12:17,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268368542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:17,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:17,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:17,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756805900] [2024-10-14 17:12:17,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:17,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:17,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:17,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:17,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:17,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1002 out of 1048 [2024-10-14 17:12:17,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:17,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:17,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1002 of 1048 [2024-10-14 17:12:17,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:18,039 INFO L124 PetriNetUnfolderBase]: 33/1395 cut-off events. [2024-10-14 17:12:18,040 INFO L125 PetriNetUnfolderBase]: For 4/36 co-relation queries the response was YES. [2024-10-14 17:12:18,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1395 events. 33/1395 cut-off events. For 4/36 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4826 event pairs, 6 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1392. Up to 25 conditions per place. [2024-10-14 17:12:18,060 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 12 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2024-10-14 17:12:18,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 942 transitions, 1925 flow [2024-10-14 17:12:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:18,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2024-10-14 17:12:18,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9608778625954199 [2024-10-14 17:12:18,064 INFO L175 Difference]: Start difference. First operand has 934 places, 943 transitions, 1899 flow. Second operand 3 states and 3021 transitions. [2024-10-14 17:12:18,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 942 transitions, 1925 flow [2024-10-14 17:12:18,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 942 transitions, 1921 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:18,072 INFO L231 Difference]: Finished difference. Result has 933 places, 942 transitions, 1897 flow [2024-10-14 17:12:18,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=933, PETRI_TRANSITIONS=942} [2024-10-14 17:12:18,075 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -55 predicate places. [2024-10-14 17:12:18,076 INFO L471 AbstractCegarLoop]: Abstraction has has 933 places, 942 transitions, 1897 flow [2024-10-14 17:12:18,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:18,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:18,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:12:18,082 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:18,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1927998895, now seen corresponding path program 1 times [2024-10-14 17:12:18,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:18,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633956008] [2024-10-14 17:12:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:18,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633956008] [2024-10-14 17:12:18,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633956008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:18,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:18,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:18,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869241697] [2024-10-14 17:12:18,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:18,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:18,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:18,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:18,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1002 out of 1048 [2024-10-14 17:12:18,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:18,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1002 of 1048 [2024-10-14 17:12:18,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:18,338 INFO L124 PetriNetUnfolderBase]: 33/1394 cut-off events. [2024-10-14 17:12:18,338 INFO L125 PetriNetUnfolderBase]: For 4/36 co-relation queries the response was YES. [2024-10-14 17:12:18,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 1394 events. 33/1394 cut-off events. For 4/36 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4815 event pairs, 6 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1391. Up to 25 conditions per place. [2024-10-14 17:12:18,363 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 12 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2024-10-14 17:12:18,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 941 transitions, 1923 flow [2024-10-14 17:12:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2024-10-14 17:12:18,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9608778625954199 [2024-10-14 17:12:18,367 INFO L175 Difference]: Start difference. First operand has 933 places, 942 transitions, 1897 flow. Second operand 3 states and 3021 transitions. [2024-10-14 17:12:18,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 941 transitions, 1923 flow [2024-10-14 17:12:18,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 941 transitions, 1919 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:18,376 INFO L231 Difference]: Finished difference. Result has 932 places, 941 transitions, 1895 flow [2024-10-14 17:12:18,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=932, PETRI_TRANSITIONS=941} [2024-10-14 17:12:18,379 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -56 predicate places. [2024-10-14 17:12:18,379 INFO L471 AbstractCegarLoop]: Abstraction has has 932 places, 941 transitions, 1895 flow [2024-10-14 17:12:18,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:18,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:18,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:12:18,381 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:18,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1055677271, now seen corresponding path program 1 times [2024-10-14 17:12:18,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:18,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073514540] [2024-10-14 17:12:18,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:18,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:18,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:18,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073514540] [2024-10-14 17:12:18,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073514540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:18,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:18,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:18,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140991813] [2024-10-14 17:12:18,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:18,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:18,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:18,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:18,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1003 out of 1048 [2024-10-14 17:12:18,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 1004.3333333333334) internal successors, (3013), 3 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:18,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1003 of 1048 [2024-10-14 17:12:18,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:18,538 INFO L124 PetriNetUnfolderBase]: 20/970 cut-off events. [2024-10-14 17:12:18,538 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-10-14 17:12:18,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 998 conditions, 970 events. 20/970 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2064 event pairs, 2 based on Foata normal form. 0/870 useless extension candidates. Maximal degree in co-relation 955. Up to 16 conditions per place. [2024-10-14 17:12:18,549 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 11 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2024-10-14 17:12:18,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 940 transitions, 1919 flow [2024-10-14 17:12:18,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:18,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2024-10-14 17:12:18,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9615139949109415 [2024-10-14 17:12:18,553 INFO L175 Difference]: Start difference. First operand has 932 places, 941 transitions, 1895 flow. Second operand 3 states and 3023 transitions. [2024-10-14 17:12:18,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 940 transitions, 1919 flow [2024-10-14 17:12:18,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 940 transitions, 1915 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:18,563 INFO L231 Difference]: Finished difference. Result has 931 places, 940 transitions, 1893 flow [2024-10-14 17:12:18,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=931, PETRI_TRANSITIONS=940} [2024-10-14 17:12:18,565 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -57 predicate places. [2024-10-14 17:12:18,565 INFO L471 AbstractCegarLoop]: Abstraction has has 931 places, 940 transitions, 1893 flow [2024-10-14 17:12:18,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1004.3333333333334) internal successors, (3013), 3 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:18,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:18,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 17:12:18,567 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:18,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash 79333507, now seen corresponding path program 1 times [2024-10-14 17:12:18,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:18,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960293384] [2024-10-14 17:12:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:18,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:18,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:18,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:18,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960293384] [2024-10-14 17:12:18,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960293384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:18,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:18,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:18,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077216023] [2024-10-14 17:12:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:18,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:18,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:18,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1002 out of 1048 [2024-10-14 17:12:18,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:18,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1002 of 1048 [2024-10-14 17:12:18,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:18,816 INFO L124 PetriNetUnfolderBase]: 30/1205 cut-off events. [2024-10-14 17:12:18,816 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2024-10-14 17:12:18,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 1205 events. 30/1205 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3074 event pairs, 6 based on Foata normal form. 0/1062 useless extension candidates. Maximal degree in co-relation 1199. Up to 25 conditions per place. [2024-10-14 17:12:18,828 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 12 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2024-10-14 17:12:18,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 939 transitions, 1919 flow [2024-10-14 17:12:18,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2024-10-14 17:12:18,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9608778625954199 [2024-10-14 17:12:18,834 INFO L175 Difference]: Start difference. First operand has 931 places, 940 transitions, 1893 flow. Second operand 3 states and 3021 transitions. [2024-10-14 17:12:18,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 932 places, 939 transitions, 1919 flow [2024-10-14 17:12:18,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 939 transitions, 1915 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:18,846 INFO L231 Difference]: Finished difference. Result has 930 places, 939 transitions, 1891 flow [2024-10-14 17:12:18,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=928, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=930, PETRI_TRANSITIONS=939} [2024-10-14 17:12:18,847 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -58 predicate places. [2024-10-14 17:12:18,847 INFO L471 AbstractCegarLoop]: Abstraction has has 930 places, 939 transitions, 1891 flow [2024-10-14 17:12:18,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:18,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:18,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 17:12:18,849 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:18,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash -426821869, now seen corresponding path program 1 times [2024-10-14 17:12:18,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:18,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696029715] [2024-10-14 17:12:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:18,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:18,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696029715] [2024-10-14 17:12:18,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696029715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:18,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:18,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:18,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397750540] [2024-10-14 17:12:18,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:18,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:18,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:18,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:18,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:18,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1002 out of 1048 [2024-10-14 17:12:18,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 939 transitions, 1891 flow. Second operand has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:18,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:18,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1002 of 1048 [2024-10-14 17:12:18,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:19,151 INFO L124 PetriNetUnfolderBase]: 30/1166 cut-off events. [2024-10-14 17:12:19,151 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2024-10-14 17:12:19,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 1166 events. 30/1166 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2943 event pairs, 6 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1160. Up to 25 conditions per place. [2024-10-14 17:12:19,168 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 12 selfloop transitions, 2 changer transitions 0/938 dead transitions. [2024-10-14 17:12:19,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 938 transitions, 1917 flow [2024-10-14 17:12:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2024-10-14 17:12:19,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9608778625954199 [2024-10-14 17:12:19,174 INFO L175 Difference]: Start difference. First operand has 930 places, 939 transitions, 1891 flow. Second operand 3 states and 3021 transitions. [2024-10-14 17:12:19,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 938 transitions, 1917 flow [2024-10-14 17:12:19,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 929 places, 938 transitions, 1913 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:19,187 INFO L231 Difference]: Finished difference. Result has 929 places, 938 transitions, 1889 flow [2024-10-14 17:12:19,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1885, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1889, PETRI_PLACES=929, PETRI_TRANSITIONS=938} [2024-10-14 17:12:19,188 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -59 predicate places. [2024-10-14 17:12:19,188 INFO L471 AbstractCegarLoop]: Abstraction has has 929 places, 938 transitions, 1889 flow [2024-10-14 17:12:19,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1003.3333333333334) internal successors, (3010), 3 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:19,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:19,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:19,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 17:12:19,190 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:19,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:19,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1654271590, now seen corresponding path program 1 times [2024-10-14 17:12:19,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:19,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221253676] [2024-10-14 17:12:19,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:19,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:19,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:19,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:19,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221253676] [2024-10-14 17:12:19,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221253676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:19,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:19,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:19,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749528619] [2024-10-14 17:12:19,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:19,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:19,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:19,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:19,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:19,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1048 [2024-10-14 17:12:19,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 938 transitions, 1889 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:19,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:19,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1048 [2024-10-14 17:12:19,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:19,593 INFO L124 PetriNetUnfolderBase]: 42/1529 cut-off events. [2024-10-14 17:12:19,594 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 17:12:19,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1529 events. 42/1529 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6395 event pairs, 12 based on Foata normal form. 0/1336 useless extension candidates. Maximal degree in co-relation 1540. Up to 38 conditions per place. [2024-10-14 17:12:19,625 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 13 selfloop transitions, 2 changer transitions 0/937 dead transitions. [2024-10-14 17:12:19,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 937 transitions, 1917 flow [2024-10-14 17:12:19,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3019 transitions. [2024-10-14 17:12:19,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9602417302798982 [2024-10-14 17:12:19,630 INFO L175 Difference]: Start difference. First operand has 929 places, 938 transitions, 1889 flow. Second operand 3 states and 3019 transitions. [2024-10-14 17:12:19,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 937 transitions, 1917 flow [2024-10-14 17:12:19,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 937 transitions, 1913 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:19,645 INFO L231 Difference]: Finished difference. Result has 928 places, 937 transitions, 1887 flow [2024-10-14 17:12:19,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=935, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=928, PETRI_TRANSITIONS=937} [2024-10-14 17:12:19,646 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -60 predicate places. [2024-10-14 17:12:19,647 INFO L471 AbstractCegarLoop]: Abstraction has has 928 places, 937 transitions, 1887 flow [2024-10-14 17:12:19,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:19,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:19,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:19,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 17:12:19,648 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:19,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:19,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2077651223, now seen corresponding path program 1 times [2024-10-14 17:12:19,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:19,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868939252] [2024-10-14 17:12:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:19,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:20,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:20,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868939252] [2024-10-14 17:12:20,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868939252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:20,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:20,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:12:20,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592913367] [2024-10-14 17:12:20,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:20,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:12:20,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:20,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:12:20,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:12:20,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 913 out of 1048 [2024-10-14 17:12:20,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 937 transitions, 1887 flow. Second operand has 6 states, 6 states have (on average 914.5) internal successors, (5487), 6 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:20,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:20,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 913 of 1048 [2024-10-14 17:12:20,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:36,483 INFO L124 PetriNetUnfolderBase]: 15257/85351 cut-off events. [2024-10-14 17:12:36,484 INFO L125 PetriNetUnfolderBase]: For 719/719 co-relation queries the response was YES. [2024-10-14 17:12:36,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107780 conditions, 85351 events. 15257/85351 cut-off events. For 719/719 co-relation queries the response was YES. Maximal size of possible extension queue 1173. Compared 1263411 event pairs, 14040 based on Foata normal form. 0/74616 useless extension candidates. Maximal degree in co-relation 107738. Up to 22026 conditions per place. [2024-10-14 17:12:37,080 INFO L140 encePairwiseOnDemand]: 1030/1048 looper letters, 87 selfloop transitions, 15 changer transitions 0/934 dead transitions. [2024-10-14 17:12:37,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 934 transitions, 2085 flow [2024-10-14 17:12:37,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:12:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:12:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5583 transitions. [2024-10-14 17:12:37,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.887881679389313 [2024-10-14 17:12:37,093 INFO L175 Difference]: Start difference. First operand has 928 places, 937 transitions, 1887 flow. Second operand 6 states and 5583 transitions. [2024-10-14 17:12:37,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 934 transitions, 2085 flow [2024-10-14 17:12:37,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 934 transitions, 2081 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:37,102 INFO L231 Difference]: Finished difference. Result has 928 places, 934 transitions, 1907 flow [2024-10-14 17:12:37,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1877, PETRI_DIFFERENCE_MINUEND_PLACES=923, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=919, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1907, PETRI_PLACES=928, PETRI_TRANSITIONS=934} [2024-10-14 17:12:37,103 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -60 predicate places. [2024-10-14 17:12:37,103 INFO L471 AbstractCegarLoop]: Abstraction has has 928 places, 934 transitions, 1907 flow [2024-10-14 17:12:37,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 914.5) internal successors, (5487), 6 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:37,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:37,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:37,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 17:12:37,104 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:37,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:37,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2010193129, now seen corresponding path program 1 times [2024-10-14 17:12:37,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:37,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809256330] [2024-10-14 17:12:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:37,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:37,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:37,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809256330] [2024-10-14 17:12:37,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809256330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:37,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:37,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:37,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976069697] [2024-10-14 17:12:37,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:37,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:37,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:37,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:37,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:37,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1048 [2024-10-14 17:12:37,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 934 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:37,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:37,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1048 [2024-10-14 17:12:37,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:37,619 INFO L124 PetriNetUnfolderBase]: 62/2127 cut-off events. [2024-10-14 17:12:37,619 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-14 17:12:37,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2212 conditions, 2127 events. 62/2127 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10866 event pairs, 20 based on Foata normal form. 0/1833 useless extension candidates. Maximal degree in co-relation 2169. Up to 50 conditions per place. [2024-10-14 17:12:37,654 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 13 selfloop transitions, 2 changer transitions 0/933 dead transitions. [2024-10-14 17:12:37,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 933 transitions, 1935 flow [2024-10-14 17:12:37,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:37,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:37,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3019 transitions. [2024-10-14 17:12:37,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9602417302798982 [2024-10-14 17:12:37,658 INFO L175 Difference]: Start difference. First operand has 928 places, 934 transitions, 1907 flow. Second operand 3 states and 3019 transitions. [2024-10-14 17:12:37,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 933 transitions, 1935 flow [2024-10-14 17:12:37,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 933 transitions, 1905 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:12:37,666 INFO L231 Difference]: Finished difference. Result has 924 places, 933 transitions, 1879 flow [2024-10-14 17:12:37,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=922, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=931, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1879, PETRI_PLACES=924, PETRI_TRANSITIONS=933} [2024-10-14 17:12:37,667 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -64 predicate places. [2024-10-14 17:12:37,667 INFO L471 AbstractCegarLoop]: Abstraction has has 924 places, 933 transitions, 1879 flow [2024-10-14 17:12:37,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:37,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:37,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:37,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 17:12:37,669 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:37,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1239658904, now seen corresponding path program 1 times [2024-10-14 17:12:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971410269] [2024-10-14 17:12:37,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:37,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:37,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:37,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:37,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971410269] [2024-10-14 17:12:37,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971410269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:37,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:37,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:37,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952237028] [2024-10-14 17:12:37,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:37,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:37,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:37,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:37,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1048 [2024-10-14 17:12:37,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 933 transitions, 1879 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:37,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:37,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1048 [2024-10-14 17:12:37,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:12:37,962 INFO L124 PetriNetUnfolderBase]: 53/1627 cut-off events. [2024-10-14 17:12:37,963 INFO L125 PetriNetUnfolderBase]: For 12/24 co-relation queries the response was YES. [2024-10-14 17:12:37,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 1627 events. 53/1627 cut-off events. For 12/24 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6153 event pairs, 20 based on Foata normal form. 0/1421 useless extension candidates. Maximal degree in co-relation 1648. Up to 50 conditions per place. [2024-10-14 17:12:37,991 INFO L140 encePairwiseOnDemand]: 1045/1048 looper letters, 13 selfloop transitions, 2 changer transitions 0/932 dead transitions. [2024-10-14 17:12:37,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 932 transitions, 1907 flow [2024-10-14 17:12:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:12:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:12:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3019 transitions. [2024-10-14 17:12:37,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9602417302798982 [2024-10-14 17:12:37,996 INFO L175 Difference]: Start difference. First operand has 924 places, 933 transitions, 1879 flow. Second operand 3 states and 3019 transitions. [2024-10-14 17:12:37,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 932 transitions, 1907 flow [2024-10-14 17:12:38,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 932 transitions, 1903 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:12:38,005 INFO L231 Difference]: Finished difference. Result has 923 places, 932 transitions, 1877 flow [2024-10-14 17:12:38,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1048, PETRI_DIFFERENCE_MINUEND_FLOW=1873, PETRI_DIFFERENCE_MINUEND_PLACES=921, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=930, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1877, PETRI_PLACES=923, PETRI_TRANSITIONS=932} [2024-10-14 17:12:38,006 INFO L277 CegarLoopForPetriNet]: 988 programPoint places, -65 predicate places. [2024-10-14 17:12:38,007 INFO L471 AbstractCegarLoop]: Abstraction has has 923 places, 932 transitions, 1877 flow [2024-10-14 17:12:38,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:38,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:12:38,008 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:12:38,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 17:12:38,009 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 188 more)] === [2024-10-14 17:12:38,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:12:38,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1430515027, now seen corresponding path program 1 times [2024-10-14 17:12:38,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:12:38,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402985197] [2024-10-14 17:12:38,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:12:38,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:12:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:12:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:12:38,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:12:38,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402985197] [2024-10-14 17:12:38,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402985197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:12:38,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:12:38,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:12:38,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261774651] [2024-10-14 17:12:38,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:12:38,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:12:38,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:12:38,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:12:38,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:12:38,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 913 out of 1048 [2024-10-14 17:12:38,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 923 places, 932 transitions, 1877 flow. Second operand has 3 states, 3 states have (on average 915.0) internal successors, (2745), 3 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:12:38,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:12:38,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 913 of 1048 [2024-10-14 17:12:38,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand