./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i -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 fd7555e2b4abe63429c1be22a8b482f63bbf931ffcb895a158eac84b789e7c88 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:00:17,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:00:17,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 18:00:17,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:00:17,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:00:17,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:00:17,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:00:17,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:00:17,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:00:17,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:00:17,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:00:17,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:00:17,478 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:00:17,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:00:17,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 18:00:17,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:00:17,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:00:17,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:00:17,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:00:17,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 18:00:17,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:00:17,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 18:00:17,486 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 18:00:17,487 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:00:17,487 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:00:17,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:00:17,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 18:00:17,488 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:00:17,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:00:17,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:00:17,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:00:17,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:00:17,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:00:17,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:00:17,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 18:00:17,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:00:17,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:00:17,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:00:17,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:00:17,490 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:00:17,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:00:17,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd7555e2b4abe63429c1be22a8b482f63bbf931ffcb895a158eac84b789e7c88 [2024-11-22 18:00:17,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:00:17,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:00:17,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:00:17,797 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:00:17,797 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:00:17,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i [2024-11-22 18:00:19,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:00:19,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:00:19,864 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i [2024-11-22 18:00:19,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed510f52d/60d934c282c6416481c919b08a1cf6d1/FLAGf74de5c69 [2024-11-22 18:00:20,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed510f52d/60d934c282c6416481c919b08a1cf6d1 [2024-11-22 18:00:20,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:00:20,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:00:20,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:00:20,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:00:20,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:00:20,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c17d72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20, skipping insertion in model container [2024-11-22 18:00:20,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:00:20,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:00:20,730 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:00:20,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:00:20,859 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:00:20,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20 WrapperNode [2024-11-22 18:00:20,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:00:20,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:00:20,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:00:20,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:00:20,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,935 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 173 [2024-11-22 18:00:20,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:00:20,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:00:20,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:00:20,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:00:20,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:00:20,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:00:20,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:00:20,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:00:20,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (1/1) ... [2024-11-22 18:00:20,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:00:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:00:21,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 18:00:21,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 18:00:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 18:00:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-22 18:00:21,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-22 18:00:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 18:00:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 18:00:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:00:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 18:00:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:00:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-22 18:00:21,096 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-22 18:00:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 18:00:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 18:00:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:00:21,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:00:21,098 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 18:00:21,273 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:00:21,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:00:21,571 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 18:00:21,572 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:00:21,607 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:00:21,608 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-22 18:00:21,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:00:21 BoogieIcfgContainer [2024-11-22 18:00:21,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:00:21,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:00:21,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:00:21,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:00:21,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:00:20" (1/3) ... [2024-11-22 18:00:21,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a02967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:00:21, skipping insertion in model container [2024-11-22 18:00:21,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:00:20" (2/3) ... [2024-11-22 18:00:21,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a02967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:00:21, skipping insertion in model container [2024-11-22 18:00:21,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:00:21" (3/3) ... [2024-11-22 18:00:21,618 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-20.i [2024-11-22 18:00:21,636 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:00:21,636 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-22 18:00:21,638 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 18:00:21,754 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-22 18:00:21,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 456 flow [2024-11-22 18:00:22,010 INFO L124 PetriNetUnfolderBase]: 32/558 cut-off events. [2024-11-22 18:00:22,010 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-22 18:00:22,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 558 events. 32/558 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2237 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 267. Up to 8 conditions per place. [2024-11-22 18:00:22,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 456 flow [2024-11-22 18:00:22,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 456 flow [2024-11-22 18:00:22,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:00:22,057 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;@58bcd5c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:00:22,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-22 18:00:22,063 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:00:22,063 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-22 18:00:22,064 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:00:22,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:22,068 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] [2024-11-22 18:00:22,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:00:22,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:22,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1315286322, now seen corresponding path program 1 times [2024-11-22 18:00:22,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:22,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659005630] [2024-11-22 18:00:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:22,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:22,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:22,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659005630] [2024-11-22 18:00:22,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659005630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:22,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:22,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:22,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235554463] [2024-11-22 18:00:22,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:22,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:22,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:22,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:22,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:22,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-22 18:00:22,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:22,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:22,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-22 18:00:22,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:22,921 INFO L124 PetriNetUnfolderBase]: 85/994 cut-off events. [2024-11-22 18:00:22,922 INFO L125 PetriNetUnfolderBase]: For 43/45 co-relation queries the response was YES. [2024-11-22 18:00:22,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 994 events. 85/994 cut-off events. For 43/45 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5519 event pairs, 64 based on Foata normal form. 82/892 useless extension candidates. Maximal degree in co-relation 886. Up to 207 conditions per place. [2024-11-22 18:00:22,932 INFO L140 encePairwiseOnDemand]: 207/218 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-11-22 18:00:22,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 500 flow [2024-11-22 18:00:22,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-11-22 18:00:22,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8669724770642202 [2024-11-22 18:00:22,952 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 456 flow. Second operand 3 states and 567 transitions. [2024-11-22 18:00:22,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 500 flow [2024-11-22 18:00:22,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:00:22,961 INFO L231 Difference]: Finished difference. Result has 207 places, 207 transitions, 438 flow [2024-11-22 18:00:22,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=207} [2024-11-22 18:00:22,967 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2024-11-22 18:00:22,968 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 207 transitions, 438 flow [2024-11-22 18:00:22,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:22,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:22,968 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] [2024-11-22 18:00:22,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:00:22,969 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:00:22,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash -707742264, now seen corresponding path program 1 times [2024-11-22 18:00:22,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:22,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512870881] [2024-11-22 18:00:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:22,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:23,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:23,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512870881] [2024-11-22 18:00:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512870881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:23,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:23,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232961283] [2024-11-22 18:00:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:23,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:23,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:23,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:23,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:23,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 218 [2024-11-22 18:00:23,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:23,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:23,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 218 [2024-11-22 18:00:23,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:23,241 INFO L124 PetriNetUnfolderBase]: 117/1005 cut-off events. [2024-11-22 18:00:23,241 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-22 18:00:23,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 1005 events. 117/1005 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5494 event pairs, 78 based on Foata normal form. 0/884 useless extension candidates. Maximal degree in co-relation 1304. Up to 243 conditions per place. [2024-11-22 18:00:23,249 INFO L140 encePairwiseOnDemand]: 195/218 looper letters, 31 selfloop transitions, 11 changer transitions 0/197 dead transitions. [2024-11-22 18:00:23,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 197 transitions, 502 flow [2024-11-22 18:00:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:23,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2024-11-22 18:00:23,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027522935779816 [2024-11-22 18:00:23,253 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 3 states and 525 transitions. [2024-11-22 18:00:23,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 197 transitions, 502 flow [2024-11-22 18:00:23,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 197 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:23,258 INFO L231 Difference]: Finished difference. Result has 195 places, 195 transitions, 432 flow [2024-11-22 18:00:23,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=195, PETRI_TRANSITIONS=195} [2024-11-22 18:00:23,259 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -15 predicate places. [2024-11-22 18:00:23,259 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 195 transitions, 432 flow [2024-11-22 18:00:23,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:23,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:23,260 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] [2024-11-22 18:00:23,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:00:23,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:00:23,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1773346952, now seen corresponding path program 1 times [2024-11-22 18:00:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:23,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162445007] [2024-11-22 18:00:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:23,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:23,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162445007] [2024-11-22 18:00:23,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162445007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:23,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:23,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:00:23,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865971111] [2024-11-22 18:00:23,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:23,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:23,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:23,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:23,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:23,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 218 [2024-11-22 18:00:23,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 195 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:23,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:23,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 218 [2024-11-22 18:00:23,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:23,522 INFO L124 PetriNetUnfolderBase]: 27/511 cut-off events. [2024-11-22 18:00:23,523 INFO L125 PetriNetUnfolderBase]: For 28/32 co-relation queries the response was YES. [2024-11-22 18:00:23,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 511 events. 27/511 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1590 event pairs, 10 based on Foata normal form. 6/465 useless extension candidates. Maximal degree in co-relation 443. Up to 39 conditions per place. [2024-11-22 18:00:23,528 INFO L140 encePairwiseOnDemand]: 206/218 looper letters, 17 selfloop transitions, 8 changer transitions 9/200 dead transitions. [2024-11-22 18:00:23,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 200 transitions, 500 flow [2024-11-22 18:00:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-11-22 18:00:23,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-11-22 18:00:23,531 INFO L175 Difference]: Start difference. First operand has 195 places, 195 transitions, 432 flow. Second operand 3 states and 594 transitions. [2024-11-22 18:00:23,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 200 transitions, 500 flow [2024-11-22 18:00:23,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 200 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:23,538 INFO L231 Difference]: Finished difference. Result has 196 places, 187 transitions, 426 flow [2024-11-22 18:00:23,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=196, PETRI_TRANSITIONS=187} [2024-11-22 18:00:23,540 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -14 predicate places. [2024-11-22 18:00:23,540 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 187 transitions, 426 flow [2024-11-22 18:00:23,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:23,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:23,542 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] [2024-11-22 18:00:23,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:00:23,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:00:23,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash 258671552, now seen corresponding path program 1 times [2024-11-22 18:00:23,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:23,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676351571] [2024-11-22 18:00:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:23,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:24,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:24,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676351571] [2024-11-22 18:00:24,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676351571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:24,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:24,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:00:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829108249] [2024-11-22 18:00:24,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:24,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:00:24,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:24,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:00:24,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:00:24,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 218 [2024-11-22 18:00:24,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 187 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:24,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:24,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 218 [2024-11-22 18:00:24,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:24,535 INFO L124 PetriNetUnfolderBase]: 83/734 cut-off events. [2024-11-22 18:00:24,535 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-22 18:00:24,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 734 events. 83/734 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2892 event pairs, 5 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 815. Up to 193 conditions per place. [2024-11-22 18:00:24,540 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 42 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-11-22 18:00:24,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 194 transitions, 534 flow [2024-11-22 18:00:24,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:00:24,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:00:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2024-11-22 18:00:24,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8065749235474006 [2024-11-22 18:00:24,543 INFO L175 Difference]: Start difference. First operand has 196 places, 187 transitions, 426 flow. Second operand 6 states and 1055 transitions. [2024-11-22 18:00:24,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 194 transitions, 534 flow [2024-11-22 18:00:24,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:00:24,547 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 426 flow [2024-11-22 18:00:24,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2024-11-22 18:00:24,552 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places. [2024-11-22 18:00:24,553 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 426 flow [2024-11-22 18:00:24,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:24,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:24,554 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] [2024-11-22 18:00:24,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:00:24,554 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:00:24,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:24,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1761069613, now seen corresponding path program 1 times [2024-11-22 18:00:24,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:24,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271664861] [2024-11-22 18:00:24,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:24,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:24,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:24,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271664861] [2024-11-22 18:00:24,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271664861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:24,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:24,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:24,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885320872] [2024-11-22 18:00:24,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:24,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:24,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:24,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-22 18:00:24,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:24,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:24,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-22 18:00:24,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:24,783 INFO L124 PetriNetUnfolderBase]: 63/716 cut-off events. [2024-11-22 18:00:24,784 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-22 18:00:24,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 716 events. 63/716 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2845 event pairs, 49 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 749. Up to 151 conditions per place. [2024-11-22 18:00:24,790 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-11-22 18:00:24,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 187 transitions, 496 flow [2024-11-22 18:00:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:24,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-22 18:00:24,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-11-22 18:00:24,793 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 426 flow. Second operand 3 states and 560 transitions. [2024-11-22 18:00:24,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 187 transitions, 496 flow [2024-11-22 18:00:24,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 187 transitions, 486 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:00:24,797 INFO L231 Difference]: Finished difference. Result has 186 places, 185 transitions, 418 flow [2024-11-22 18:00:24,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=186, PETRI_TRANSITIONS=185} [2024-11-22 18:00:24,800 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -24 predicate places. [2024-11-22 18:00:24,801 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 185 transitions, 418 flow [2024-11-22 18:00:24,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:24,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:24,803 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:24,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:00:24,803 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:00:24,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:24,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1996288427, now seen corresponding path program 1 times [2024-11-22 18:00:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969489978] [2024-11-22 18:00:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:24,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:24,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:24,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969489978] [2024-11-22 18:00:24,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969489978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:00:24,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544064223] [2024-11-22 18:00:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:24,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:00:24,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:00:24,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:00:24,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:00:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:25,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 18:00:25,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:00:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 18:00:25,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:00:25,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544064223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:25,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:00:25,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 18:00:25,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558341367] [2024-11-22 18:00:25,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:25,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:25,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:25,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:25,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:00:25,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-22 18:00:25,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 185 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:25,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:25,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-22 18:00:25,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:25,318 INFO L124 PetriNetUnfolderBase]: 63/700 cut-off events. [2024-11-22 18:00:25,318 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-22 18:00:25,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 700 events. 63/700 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2748 event pairs, 49 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 723. Up to 151 conditions per place. [2024-11-22 18:00:25,325 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2024-11-22 18:00:25,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 186 transitions, 488 flow [2024-11-22 18:00:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-22 18:00:25,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-11-22 18:00:25,328 INFO L175 Difference]: Start difference. First operand has 186 places, 185 transitions, 418 flow. Second operand 3 states and 560 transitions. [2024-11-22 18:00:25,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 186 transitions, 488 flow [2024-11-22 18:00:25,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 186 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:25,335 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 416 flow [2024-11-22 18:00:25,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2024-11-22 18:00:25,337 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -25 predicate places. [2024-11-22 18:00:25,337 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 416 flow [2024-11-22 18:00:25,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:25,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:25,338 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:25,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 18:00:25,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 18:00:25,545 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-22 18:00:25,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash 95516775, now seen corresponding path program 1 times [2024-11-22 18:00:25,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:25,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687833506] [2024-11-22 18:00:25,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:25,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:25,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:00:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:25,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:00:25,639 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:00:25,641 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-22 18:00:25,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-22 18:00:25,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-22 18:00:25,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-22 18:00:25,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-22 18:00:25,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-22 18:00:25,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-11-22 18:00:25,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-22 18:00:25,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-22 18:00:25,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-22 18:00:25,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-22 18:00:25,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-22 18:00:25,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-22 18:00:25,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-22 18:00:25,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-22 18:00:25,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-22 18:00:25,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-22 18:00:25,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-22 18:00:25,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-22 18:00:25,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-22 18:00:25,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-22 18:00:25,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-22 18:00:25,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-22 18:00:25,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-22 18:00:25,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-22 18:00:25,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-22 18:00:25,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-22 18:00:25,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-22 18:00:25,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-22 18:00:25,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-22 18:00:25,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-22 18:00:25,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2024-11-22 18:00:25,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-22 18:00:25,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-22 18:00:25,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-22 18:00:25,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-22 18:00:25,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-22 18:00:25,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-22 18:00:25,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:00:25,659 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:25,662 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:00:25,662 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 18:00:25,712 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-22 18:00:25,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 259 places, 272 transitions, 588 flow [2024-11-22 18:00:25,929 INFO L124 PetriNetUnfolderBase]: 131/1812 cut-off events. [2024-11-22 18:00:25,929 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-22 18:00:25,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 1812 events. 131/1812 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10481 event pairs, 2 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 1028. Up to 32 conditions per place. [2024-11-22 18:00:25,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 259 places, 272 transitions, 588 flow [2024-11-22 18:00:25,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 272 transitions, 588 flow [2024-11-22 18:00:25,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:00:25,969 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;@58bcd5c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:00:25,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-22 18:00:25,972 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:00:25,972 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-22 18:00:25,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:00:25,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:25,972 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] [2024-11-22 18:00:25,973 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:25,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash 586871886, now seen corresponding path program 1 times [2024-11-22 18:00:25,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:25,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282737795] [2024-11-22 18:00:25,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:25,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282737795] [2024-11-22 18:00:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282737795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:26,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:26,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:26,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194900455] [2024-11-22 18:00:26,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:26,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:26,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:26,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:26,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:26,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-22 18:00:26,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 272 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:26,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:26,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-22 18:00:26,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:27,518 INFO L124 PetriNetUnfolderBase]: 1200/7025 cut-off events. [2024-11-22 18:00:27,518 INFO L125 PetriNetUnfolderBase]: For 678/712 co-relation queries the response was YES. [2024-11-22 18:00:27,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 7025 events. 1200/7025 cut-off events. For 678/712 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 62105 event pairs, 985 based on Foata normal form. 1614/7418 useless extension candidates. Maximal degree in co-relation 4757. Up to 2070 conditions per place. [2024-11-22 18:00:27,596 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 39 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2024-11-22 18:00:27,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 255 transitions, 636 flow [2024-11-22 18:00:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:27,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:27,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-11-22 18:00:27,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602941176470589 [2024-11-22 18:00:27,598 INFO L175 Difference]: Start difference. First operand has 259 places, 272 transitions, 588 flow. Second operand 3 states and 702 transitions. [2024-11-22 18:00:27,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 255 transitions, 636 flow [2024-11-22 18:00:27,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 255 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:00:27,603 INFO L231 Difference]: Finished difference. Result has 252 places, 255 transitions, 558 flow [2024-11-22 18:00:27,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=252, PETRI_TRANSITIONS=255} [2024-11-22 18:00:27,604 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -7 predicate places. [2024-11-22 18:00:27,604 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 255 transitions, 558 flow [2024-11-22 18:00:27,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:27,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:27,605 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] [2024-11-22 18:00:27,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:00:27,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:27,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:27,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1310803050, now seen corresponding path program 1 times [2024-11-22 18:00:27,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:27,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645955985] [2024-11-22 18:00:27,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:27,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:27,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:27,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645955985] [2024-11-22 18:00:27,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645955985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:27,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:27,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:27,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46665941] [2024-11-22 18:00:27,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:27,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:27,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:27,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:27,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:27,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2024-11-22 18:00:27,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 255 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:27,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:27,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2024-11-22 18:00:27,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:28,661 INFO L124 PetriNetUnfolderBase]: 1650/7399 cut-off events. [2024-11-22 18:00:28,661 INFO L125 PetriNetUnfolderBase]: For 653/671 co-relation queries the response was YES. [2024-11-22 18:00:28,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10619 conditions, 7399 events. 1650/7399 cut-off events. For 653/671 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 62410 event pairs, 1169 based on Foata normal form. 0/6613 useless extension candidates. Maximal degree in co-relation 10588. Up to 2412 conditions per place. [2024-11-22 18:00:28,735 INFO L140 encePairwiseOnDemand]: 249/272 looper letters, 41 selfloop transitions, 11 changer transitions 0/247 dead transitions. [2024-11-22 18:00:28,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 247 transitions, 646 flow [2024-11-22 18:00:28,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:28,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-11-22 18:00:28,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8063725490196079 [2024-11-22 18:00:28,737 INFO L175 Difference]: Start difference. First operand has 252 places, 255 transitions, 558 flow. Second operand 3 states and 658 transitions. [2024-11-22 18:00:28,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 247 transitions, 646 flow [2024-11-22 18:00:28,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 247 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:28,741 INFO L231 Difference]: Finished difference. Result has 240 places, 243 transitions, 552 flow [2024-11-22 18:00:28,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=240, PETRI_TRANSITIONS=243} [2024-11-22 18:00:28,742 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-11-22 18:00:28,742 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 243 transitions, 552 flow [2024-11-22 18:00:28,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:28,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:28,743 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] [2024-11-22 18:00:28,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:00:28,743 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:28,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:28,744 INFO L85 PathProgramCache]: Analyzing trace with hash 169601016, now seen corresponding path program 1 times [2024-11-22 18:00:28,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:28,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851425905] [2024-11-22 18:00:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:28,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:28,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:28,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851425905] [2024-11-22 18:00:28,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851425905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:28,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:28,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:00:28,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307560937] [2024-11-22 18:00:28,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:28,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:28,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:28,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:28,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:28,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 272 [2024-11-22 18:00:28,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 243 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:28,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:28,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 272 [2024-11-22 18:00:28,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:29,458 INFO L124 PetriNetUnfolderBase]: 630/4819 cut-off events. [2024-11-22 18:00:29,458 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2024-11-22 18:00:29,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6501 conditions, 4819 events. 630/4819 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 40420 event pairs, 228 based on Foata normal form. 42/4348 useless extension candidates. Maximal degree in co-relation 4159. Up to 682 conditions per place. [2024-11-22 18:00:29,493 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 37 selfloop transitions, 8 changer transitions 0/259 dead transitions. [2024-11-22 18:00:29,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 259 transitions, 698 flow [2024-11-22 18:00:29,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:29,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-11-22 18:00:29,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2024-11-22 18:00:29,495 INFO L175 Difference]: Start difference. First operand has 240 places, 243 transitions, 552 flow. Second operand 3 states and 736 transitions. [2024-11-22 18:00:29,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 259 transitions, 698 flow [2024-11-22 18:00:29,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 259 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:29,500 INFO L231 Difference]: Finished difference. Result has 241 places, 247 transitions, 578 flow [2024-11-22 18:00:29,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=241, PETRI_TRANSITIONS=247} [2024-11-22 18:00:29,501 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -18 predicate places. [2024-11-22 18:00:29,501 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 247 transitions, 578 flow [2024-11-22 18:00:29,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:29,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:29,502 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] [2024-11-22 18:00:29,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:00:29,502 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:29,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:29,502 INFO L85 PathProgramCache]: Analyzing trace with hash 631504654, now seen corresponding path program 1 times [2024-11-22 18:00:29,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:29,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519570567] [2024-11-22 18:00:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:29,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:29,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:29,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519570567] [2024-11-22 18:00:29,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519570567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:29,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:29,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:00:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490786824] [2024-11-22 18:00:29,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:29,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:00:29,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:29,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:00:29,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:00:29,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 272 [2024-11-22 18:00:29,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 247 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:29,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:29,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 272 [2024-11-22 18:00:29,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:30,906 INFO L124 PetriNetUnfolderBase]: 1558/7502 cut-off events. [2024-11-22 18:00:30,906 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2024-11-22 18:00:30,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11144 conditions, 7502 events. 1558/7502 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 63246 event pairs, 74 based on Foata normal form. 0/6971 useless extension candidates. Maximal degree in co-relation 5065. Up to 2728 conditions per place. [2024-11-22 18:00:31,000 INFO L140 encePairwiseOnDemand]: 266/272 looper letters, 62 selfloop transitions, 6 changer transitions 0/262 dead transitions. [2024-11-22 18:00:31,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 262 transitions, 744 flow [2024-11-22 18:00:31,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:00:31,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:00:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2024-11-22 18:00:31,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8082107843137255 [2024-11-22 18:00:31,004 INFO L175 Difference]: Start difference. First operand has 241 places, 247 transitions, 578 flow. Second operand 6 states and 1319 transitions. [2024-11-22 18:00:31,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 262 transitions, 744 flow [2024-11-22 18:00:31,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 262 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:00:31,010 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 580 flow [2024-11-22 18:00:31,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-11-22 18:00:31,011 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -15 predicate places. [2024-11-22 18:00:31,011 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 580 flow [2024-11-22 18:00:31,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:31,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:31,012 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] [2024-11-22 18:00:31,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 18:00:31,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:31,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash 627119402, now seen corresponding path program 1 times [2024-11-22 18:00:31,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:31,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134879271] [2024-11-22 18:00:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:31,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:31,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:31,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134879271] [2024-11-22 18:00:31,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134879271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:31,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:31,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:31,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994908139] [2024-11-22 18:00:31,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:31,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:31,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:31,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:31,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:31,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-22 18:00:31,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:31,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:31,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-22 18:00:31,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:31,864 INFO L124 PetriNetUnfolderBase]: 1177/6971 cut-off events. [2024-11-22 18:00:31,864 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-11-22 18:00:31,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9778 conditions, 6971 events. 1177/6971 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 60429 event pairs, 990 based on Foata normal form. 0/6384 useless extension candidates. Maximal degree in co-relation 4376. Up to 2049 conditions per place. [2024-11-22 18:00:31,940 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2024-11-22 18:00:31,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 249 transitions, 676 flow [2024-11-22 18:00:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-11-22 18:00:31,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-11-22 18:00:31,943 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 580 flow. Second operand 3 states and 694 transitions. [2024-11-22 18:00:31,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 249 transitions, 676 flow [2024-11-22 18:00:31,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 249 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:00:31,947 INFO L231 Difference]: Finished difference. Result has 240 places, 245 transitions, 570 flow [2024-11-22 18:00:31,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=240, PETRI_TRANSITIONS=245} [2024-11-22 18:00:31,948 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-11-22 18:00:31,948 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 245 transitions, 570 flow [2024-11-22 18:00:31,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:31,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:31,949 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:31,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:00:31,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:31,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:31,950 INFO L85 PathProgramCache]: Analyzing trace with hash -258553338, now seen corresponding path program 1 times [2024-11-22 18:00:31,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128847546] [2024-11-22 18:00:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:31,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:32,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:32,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:32,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128847546] [2024-11-22 18:00:32,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128847546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:00:32,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072981225] [2024-11-22 18:00:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:32,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:00:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:00:32,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:00:32,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:00:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:32,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 18:00:32,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:00:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 18:00:32,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:00:32,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072981225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:32,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:00:32,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 18:00:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173004352] [2024-11-22 18:00:32,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:32,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:32,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:32,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:00:32,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-22 18:00:32,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:32,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:32,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-22 18:00:32,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:32,878 INFO L124 PetriNetUnfolderBase]: 1177/6926 cut-off events. [2024-11-22 18:00:32,878 INFO L125 PetriNetUnfolderBase]: For 752/752 co-relation queries the response was YES. [2024-11-22 18:00:32,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9695 conditions, 6926 events. 1177/6926 cut-off events. For 752/752 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 59995 event pairs, 990 based on Foata normal form. 0/6336 useless extension candidates. Maximal degree in co-relation 4882. Up to 2049 conditions per place. [2024-11-22 18:00:32,937 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/248 dead transitions. [2024-11-22 18:00:32,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 248 transitions, 666 flow [2024-11-22 18:00:32,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:32,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-11-22 18:00:32,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-11-22 18:00:32,939 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 570 flow. Second operand 3 states and 694 transitions. [2024-11-22 18:00:32,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 248 transitions, 666 flow [2024-11-22 18:00:32,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 248 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:32,942 INFO L231 Difference]: Finished difference. Result has 239 places, 244 transitions, 568 flow [2024-11-22 18:00:32,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=239, PETRI_TRANSITIONS=244} [2024-11-22 18:00:32,943 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -20 predicate places. [2024-11-22 18:00:32,943 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 244 transitions, 568 flow [2024-11-22 18:00:32,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:32,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:32,944 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:32,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 18:00:33,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 18:00:33,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:33,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:33,145 INFO L85 PathProgramCache]: Analyzing trace with hash 47910380, now seen corresponding path program 1 times [2024-11-22 18:00:33,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:33,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167838584] [2024-11-22 18:00:33,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:33,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:33,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:33,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167838584] [2024-11-22 18:00:33,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167838584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:00:33,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219660434] [2024-11-22 18:00:33,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:33,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:00:33,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:00:33,226 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:00:33,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:00:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:33,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 18:00:33,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:00:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:33,362 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:00:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219660434] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:00:33,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:00:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 18:00:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489385981] [2024-11-22 18:00:33,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:00:33,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 18:00:33,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 18:00:33,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:00:33,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2024-11-22 18:00:33,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 244 transitions, 568 flow. Second operand has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:33,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:33,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2024-11-22 18:00:33,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:33,744 INFO L124 PetriNetUnfolderBase]: 62/390 cut-off events. [2024-11-22 18:00:33,744 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-22 18:00:33,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 390 events. 62/390 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1457 event pairs, 0 based on Foata normal form. 12/402 useless extension candidates. Maximal degree in co-relation 540. Up to 42 conditions per place. [2024-11-22 18:00:33,745 INFO L140 encePairwiseOnDemand]: 267/272 looper letters, 29 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2024-11-22 18:00:33,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 248 flow [2024-11-22 18:00:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 18:00:33,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 18:00:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2027 transitions. [2024-11-22 18:00:33,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8280228758169934 [2024-11-22 18:00:33,749 INFO L175 Difference]: Start difference. First operand has 239 places, 244 transitions, 568 flow. Second operand 9 states and 2027 transitions. [2024-11-22 18:00:33,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 248 flow [2024-11-22 18:00:33,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:00:33,750 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 150 flow [2024-11-22 18:00:33,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-11-22 18:00:33,750 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -184 predicate places. [2024-11-22 18:00:33,750 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 150 flow [2024-11-22 18:00:33,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:33,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:33,752 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:33,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 18:00:33,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:00:33,957 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-22 18:00:33,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:33,957 INFO L85 PathProgramCache]: Analyzing trace with hash 964841816, now seen corresponding path program 1 times [2024-11-22 18:00:33,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:33,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599487517] [2024-11-22 18:00:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:33,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:33,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:00:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:00:34,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:00:34,020 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-22 18:00:34,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-22 18:00:34,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-22 18:00:34,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-22 18:00:34,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-22 18:00:34,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-22 18:00:34,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-22 18:00:34,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-22 18:00:34,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-22 18:00:34,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-22 18:00:34,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-22 18:00:34,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-22 18:00:34,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-22 18:00:34,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-22 18:00:34,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 18:00:34,027 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:00:34,027 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:00:34,027 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-22 18:00:34,053 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-22 18:00:34,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 326 transitions, 724 flow [2024-11-22 18:00:34,862 INFO L124 PetriNetUnfolderBase]: 544/5934 cut-off events. [2024-11-22 18:00:34,862 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-11-22 18:00:34,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6370 conditions, 5934 events. 544/5934 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 46621 event pairs, 64 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 3413. Up to 192 conditions per place. [2024-11-22 18:00:34,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 326 transitions, 724 flow [2024-11-22 18:00:34,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 326 transitions, 724 flow [2024-11-22 18:00:34,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:00:34,961 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;@58bcd5c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:00:34,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-22 18:00:34,963 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:00:34,963 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-22 18:00:34,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:00:34,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:34,963 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] [2024-11-22 18:00:34,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:00:34,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash 292481358, now seen corresponding path program 1 times [2024-11-22 18:00:34,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:34,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461258634] [2024-11-22 18:00:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:34,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:34,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:34,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461258634] [2024-11-22 18:00:34,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461258634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:34,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:34,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:34,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624415939] [2024-11-22 18:00:34,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:34,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:34,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:34,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:34,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:35,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 326 [2024-11-22 18:00:35,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 326 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:35,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:35,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 326 [2024-11-22 18:00:35,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:44,322 INFO L124 PetriNetUnfolderBase]: 12815/49237 cut-off events. [2024-11-22 18:00:44,322 INFO L125 PetriNetUnfolderBase]: For 7466/8012 co-relation queries the response was YES. [2024-11-22 18:00:44,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71260 conditions, 49237 events. 12815/49237 cut-off events. For 7466/8012 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 571396 event pairs, 10886 based on Foata normal form. 19499/60616 useless extension candidates. Maximal degree in co-relation 36872. Up to 19303 conditions per place. [2024-11-22 18:00:45,278 INFO L140 encePairwiseOnDemand]: 307/326 looper letters, 47 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2024-11-22 18:00:45,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 303 transitions, 776 flow [2024-11-22 18:00:45,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:45,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2024-11-22 18:00:45,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8558282208588958 [2024-11-22 18:00:45,281 INFO L175 Difference]: Start difference. First operand has 308 places, 326 transitions, 724 flow. Second operand 3 states and 837 transitions. [2024-11-22 18:00:45,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 303 transitions, 776 flow [2024-11-22 18:00:45,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 303 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:00:45,302 INFO L231 Difference]: Finished difference. Result has 297 places, 303 transitions, 682 flow [2024-11-22 18:00:45,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=297, PETRI_TRANSITIONS=303} [2024-11-22 18:00:45,303 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2024-11-22 18:00:45,303 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 303 transitions, 682 flow [2024-11-22 18:00:45,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:45,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:45,304 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] [2024-11-22 18:00:45,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 18:00:45,304 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:00:45,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:45,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1175482534, now seen corresponding path program 1 times [2024-11-22 18:00:45,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:45,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14219830] [2024-11-22 18:00:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:45,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:45,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:45,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14219830] [2024-11-22 18:00:45,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14219830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:45,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:45,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:00:45,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587087168] [2024-11-22 18:00:45,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:45,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:45,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:45,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:45,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:45,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 326 [2024-11-22 18:00:45,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 303 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:45,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:45,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 326 [2024-11-22 18:00:45,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:00:55,790 INFO L124 PetriNetUnfolderBase]: 17515/54770 cut-off events. [2024-11-22 18:00:55,790 INFO L125 PetriNetUnfolderBase]: For 7467/7915 co-relation queries the response was YES. [2024-11-22 18:00:56,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84337 conditions, 54770 events. 17515/54770 cut-off events. For 7467/7915 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 595268 event pairs, 12762 based on Foata normal form. 0/49554 useless extension candidates. Maximal degree in co-relation 84304. Up to 22195 conditions per place. [2024-11-22 18:00:56,811 INFO L140 encePairwiseOnDemand]: 303/326 looper letters, 51 selfloop transitions, 11 changer transitions 0/297 dead transitions. [2024-11-22 18:00:56,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 297 transitions, 794 flow [2024-11-22 18:00:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:00:56,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:00:56,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2024-11-22 18:00:56,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8087934560327198 [2024-11-22 18:00:56,814 INFO L175 Difference]: Start difference. First operand has 297 places, 303 transitions, 682 flow. Second operand 3 states and 791 transitions. [2024-11-22 18:00:56,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 297 transitions, 794 flow [2024-11-22 18:00:56,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 297 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:00:56,832 INFO L231 Difference]: Finished difference. Result has 285 places, 291 transitions, 676 flow [2024-11-22 18:00:56,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=285, PETRI_TRANSITIONS=291} [2024-11-22 18:00:56,833 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -23 predicate places. [2024-11-22 18:00:56,833 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 291 transitions, 676 flow [2024-11-22 18:00:56,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:56,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:00:56,834 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] [2024-11-22 18:00:56,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 18:00:56,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:00:56,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:00:56,835 INFO L85 PathProgramCache]: Analyzing trace with hash -75841800, now seen corresponding path program 1 times [2024-11-22 18:00:56,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:00:56,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471914881] [2024-11-22 18:00:56,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:00:56,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:00:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:00:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:00:56,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:00:56,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471914881] [2024-11-22 18:00:56,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471914881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:00:56,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:00:56,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:00:56,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65637625] [2024-11-22 18:00:56,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:00:56,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:00:56,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:00:56,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:00:56,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:00:56,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 326 [2024-11-22 18:00:56,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 291 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:00:56,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:00:56,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 326 [2024-11-22 18:00:56,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:01:03,591 INFO L124 PetriNetUnfolderBase]: 8365/37765 cut-off events. [2024-11-22 18:01:03,592 INFO L125 PetriNetUnfolderBase]: For 9868/10422 co-relation queries the response was YES. [2024-11-22 18:01:03,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55596 conditions, 37765 events. 8365/37765 cut-off events. For 9868/10422 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 459389 event pairs, 3344 based on Foata normal form. 300/33765 useless extension candidates. Maximal degree in co-relation 37121. Up to 8245 conditions per place. [2024-11-22 18:01:04,143 INFO L140 encePairwiseOnDemand]: 314/326 looper letters, 51 selfloop transitions, 8 changer transitions 0/313 dead transitions. [2024-11-22 18:01:04,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 313 transitions, 874 flow [2024-11-22 18:01:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:01:04,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:01:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2024-11-22 18:01:04,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8926380368098159 [2024-11-22 18:01:04,145 INFO L175 Difference]: Start difference. First operand has 285 places, 291 transitions, 676 flow. Second operand 3 states and 873 transitions. [2024-11-22 18:01:04,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 313 transitions, 874 flow [2024-11-22 18:01:04,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 313 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:01:04,167 INFO L231 Difference]: Finished difference. Result has 286 places, 295 transitions, 702 flow [2024-11-22 18:01:04,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=286, PETRI_TRANSITIONS=295} [2024-11-22 18:01:04,168 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -22 predicate places. [2024-11-22 18:01:04,168 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 295 transitions, 702 flow [2024-11-22 18:01:04,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:01:04,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:01:04,168 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] [2024-11-22 18:01:04,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 18:01:04,168 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-22 18:01:04,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:01:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash -639082542, now seen corresponding path program 1 times [2024-11-22 18:01:04,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:01:04,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995624685] [2024-11-22 18:01:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:01:04,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:01:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:01:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:01:04,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:01:04,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995624685] [2024-11-22 18:01:04,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995624685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:01:04,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:01:04,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:01:04,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650739887] [2024-11-22 18:01:04,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:01:04,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:01:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:01:04,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:01:04,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:01:04,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 326 [2024-11-22 18:01:04,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 295 transitions, 702 flow. Second operand has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:01:04,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:01:04,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 326 [2024-11-22 18:01:04,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand