./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:32:06,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:32:06,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:32:06,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:32:06,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:32:06,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:32:06,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:32:06,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:32:06,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:32:06,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:32:06,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:32:06,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:32:06,359 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:32:06,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:32:06,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:32:06,359 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:32:06,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:32:06,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:32:06,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:32:06,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:32:06,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:32:06,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:32:06,362 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:32:06,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:32:06,362 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:32:06,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:32:06,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:32:06,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:32:06,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:32:06,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:32:06,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:32:06,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:32:06,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:32:06,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:32:06,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:32:06,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:32:06,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:32:06,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:32:06,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:32:06,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:32:06,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:32:06,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f [2024-10-24 15:32:06,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:32:06,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:32:06,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:32:06,618 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:32:06,619 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:32:06,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-10-24 15:32:07,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:32:08,165 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:32:08,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-10-24 15:32:08,176 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670090ded/c35aa3d3881245759835e132a194fdef/FLAG7d5cdcea3 [2024-10-24 15:32:08,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670090ded/c35aa3d3881245759835e132a194fdef [2024-10-24 15:32:08,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:32:08,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:32:08,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:32:08,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:32:08,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:32:08,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218dda6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08, skipping insertion in model container [2024-10-24 15:32:08,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:32:08,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:32:08,433 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:32:08,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:32:08,474 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:32:08,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08 WrapperNode [2024-10-24 15:32:08,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:32:08,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:32:08,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:32:08,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:32:08,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,520 INFO L138 Inliner]: procedures = 24, calls = 91, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 501 [2024-10-24 15:32:08,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:32:08,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:32:08,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:32:08,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:32:08,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:32:08,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:32:08,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:32:08,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:32:08,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (1/1) ... [2024-10-24 15:32:08,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:32:08,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:32:08,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:32:08,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:32:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:32:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 15:32:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 15:32:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 15:32:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 15:32:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 15:32:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 15:32:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-24 15:32:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-24 15:32:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:32:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-24 15:32:08,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-24 15:32:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-24 15:32:08,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-24 15:32:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 15:32:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 15:32:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:32:08,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:32:08,662 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:32:08,795 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:32:08,797 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:32:09,278 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:32:09,279 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:32:09,529 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:32:09,530 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-24 15:32:09,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:32:09 BoogieIcfgContainer [2024-10-24 15:32:09,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:32:09,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:32:09,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:32:09,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:32:09,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:32:08" (1/3) ... [2024-10-24 15:32:09,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138f022c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:32:09, skipping insertion in model container [2024-10-24 15:32:09,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:32:08" (2/3) ... [2024-10-24 15:32:09,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138f022c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:32:09, skipping insertion in model container [2024-10-24 15:32:09,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:32:09" (3/3) ... [2024-10-24 15:32:09,540 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2024-10-24 15:32:09,554 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:32:09,555 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2024-10-24 15:32:09,555 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:32:09,650 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-24 15:32:09,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 415 places, 412 transitions, 890 flow [2024-10-24 15:32:09,825 INFO L124 PetriNetUnfolderBase]: 16/398 cut-off events. [2024-10-24 15:32:09,826 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:32:09,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 398 events. 16/398 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 760 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 340. Up to 3 conditions per place. [2024-10-24 15:32:09,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 415 places, 412 transitions, 890 flow [2024-10-24 15:32:09,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 383 places, 378 transitions, 804 flow [2024-10-24 15:32:09,884 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:32:09,890 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;@28a1b437, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:32:09,890 INFO L334 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2024-10-24 15:32:09,897 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:32:09,899 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-24 15:32:09,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:32:09,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:09,900 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] [2024-10-24 15:32:09,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 135 more)] === [2024-10-24 15:32:09,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:09,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1273224667, now seen corresponding path program 1 times [2024-10-24 15:32:09,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:09,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792985009] [2024-10-24 15:32:09,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:09,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792985009] [2024-10-24 15:32:10,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792985009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:10,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:10,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:32:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079351762] [2024-10-24 15:32:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:10,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:10,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:10,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:10,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:10,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 416 [2024-10-24 15:32:10,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 378 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:32:10,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:10,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 416 [2024-10-24 15:32:10,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:32:18,985 INFO L124 PetriNetUnfolderBase]: 37079/63043 cut-off events. [2024-10-24 15:32:18,985 INFO L125 PetriNetUnfolderBase]: For 14731/14731 co-relation queries the response was YES. [2024-10-24 15:32:19,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123303 conditions, 63043 events. 37079/63043 cut-off events. For 14731/14731 co-relation queries the response was YES. Maximal size of possible extension queue 2731. Compared 569073 event pairs, 26797 based on Foata normal form. 8178/63538 useless extension candidates. Maximal degree in co-relation 122144. Up to 47664 conditions per place. [2024-10-24 15:32:19,691 INFO L140 encePairwiseOnDemand]: 356/416 looper letters, 55 selfloop transitions, 2 changer transitions 1/320 dead transitions. [2024-10-24 15:32:19,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 320 transitions, 802 flow [2024-10-24 15:32:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:32:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:32:19,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2024-10-24 15:32:19,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7892628205128205 [2024-10-24 15:32:19,707 INFO L175 Difference]: Start difference. First operand has 383 places, 378 transitions, 804 flow. Second operand 3 states and 985 transitions. [2024-10-24 15:32:19,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 320 transitions, 802 flow [2024-10-24 15:32:19,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 320 transitions, 770 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-24 15:32:19,752 INFO L231 Difference]: Finished difference. Result has 320 places, 319 transitions, 658 flow [2024-10-24 15:32:19,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=320, PETRI_TRANSITIONS=319} [2024-10-24 15:32:19,757 INFO L277 CegarLoopForPetriNet]: 383 programPoint places, -63 predicate places. [2024-10-24 15:32:19,758 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 319 transitions, 658 flow [2024-10-24 15:32:19,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:32:19,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:19,759 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:32:19,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:32:19,760 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 135 more)] === [2024-10-24 15:32:19,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:19,761 INFO L85 PathProgramCache]: Analyzing trace with hash 918168194, now seen corresponding path program 1 times [2024-10-24 15:32:19,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:19,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776887534] [2024-10-24 15:32:19,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:19,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776887534] [2024-10-24 15:32:19,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776887534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:19,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:19,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:32:19,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987459545] [2024-10-24 15:32:19,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:19,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:19,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:19,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:19,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:19,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 416 [2024-10-24 15:32:19,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 319 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:32:19,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:19,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 416 [2024-10-24 15:32:19,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:32:28,648 INFO L124 PetriNetUnfolderBase]: 36999/62271 cut-off events. [2024-10-24 15:32:28,652 INFO L125 PetriNetUnfolderBase]: For 4189/4189 co-relation queries the response was YES. [2024-10-24 15:32:28,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111967 conditions, 62271 events. 36999/62271 cut-off events. For 4189/4189 co-relation queries the response was YES. Maximal size of possible extension queue 2694. Compared 551604 event pairs, 26694 based on Foata normal form. 0/54416 useless extension candidates. Maximal degree in co-relation 111928. Up to 47557 conditions per place. [2024-10-24 15:32:29,224 INFO L140 encePairwiseOnDemand]: 413/416 looper letters, 55 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2024-10-24 15:32:29,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 318 transitions, 770 flow [2024-10-24 15:32:29,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:32:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:32:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 928 transitions. [2024-10-24 15:32:29,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2024-10-24 15:32:29,227 INFO L175 Difference]: Start difference. First operand has 320 places, 319 transitions, 658 flow. Second operand 3 states and 928 transitions. [2024-10-24 15:32:29,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 318 transitions, 770 flow [2024-10-24 15:32:29,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 318 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:32:29,233 INFO L231 Difference]: Finished difference. Result has 318 places, 318 transitions, 656 flow [2024-10-24 15:32:29,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=318, PETRI_TRANSITIONS=318} [2024-10-24 15:32:29,234 INFO L277 CegarLoopForPetriNet]: 383 programPoint places, -65 predicate places. [2024-10-24 15:32:29,234 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 318 transitions, 656 flow [2024-10-24 15:32:29,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:32:29,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:29,235 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:32:29,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:32:29,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 135 more)] === [2024-10-24 15:32:29,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1209160758, now seen corresponding path program 1 times [2024-10-24 15:32:29,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:29,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454627183] [2024-10-24 15:32:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:29,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:29,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454627183] [2024-10-24 15:32:29,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454627183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:29,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:29,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:32:29,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135171425] [2024-10-24 15:32:29,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:29,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:29,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:29,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:29,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:29,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 416 [2024-10-24 15:32:29,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 318 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:32:29,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:29,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 416 [2024-10-24 15:32:29,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:32:37,795 INFO L124 PetriNetUnfolderBase]: 36999/62270 cut-off events. [2024-10-24 15:32:37,796 INFO L125 PetriNetUnfolderBase]: For 4189/4189 co-relation queries the response was YES. [2024-10-24 15:32:37,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111966 conditions, 62270 events. 36999/62270 cut-off events. For 4189/4189 co-relation queries the response was YES. Maximal size of possible extension queue 2698. Compared 552072 event pairs, 26694 based on Foata normal form. 0/54416 useless extension candidates. Maximal degree in co-relation 111920. Up to 47557 conditions per place. [2024-10-24 15:32:38,377 INFO L140 encePairwiseOnDemand]: 413/416 looper letters, 55 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2024-10-24 15:32:38,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 317 transitions, 768 flow [2024-10-24 15:32:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:32:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:32:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 928 transitions. [2024-10-24 15:32:38,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2024-10-24 15:32:38,380 INFO L175 Difference]: Start difference. First operand has 318 places, 318 transitions, 656 flow. Second operand 3 states and 928 transitions. [2024-10-24 15:32:38,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 317 transitions, 768 flow [2024-10-24 15:32:38,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 317 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:32:38,384 INFO L231 Difference]: Finished difference. Result has 317 places, 317 transitions, 654 flow [2024-10-24 15:32:38,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=317, PETRI_TRANSITIONS=317} [2024-10-24 15:32:38,386 INFO L277 CegarLoopForPetriNet]: 383 programPoint places, -66 predicate places. [2024-10-24 15:32:38,386 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 317 transitions, 654 flow [2024-10-24 15:32:38,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:32:38,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:32:38,387 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:32:38,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:32:38,387 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 135 more)] === [2024-10-24 15:32:38,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:32:38,388 INFO L85 PathProgramCache]: Analyzing trace with hash 464459365, now seen corresponding path program 1 times [2024-10-24 15:32:38,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:32:38,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787699574] [2024-10-24 15:32:38,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:32:38,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:32:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:32:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:32:38,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:32:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787699574] [2024-10-24 15:32:38,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787699574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:32:38,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:32:38,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:32:38,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095414195] [2024-10-24 15:32:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:32:38,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:32:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:32:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:32:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:32:38,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 416 [2024-10-24 15:32:38,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 317 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:32:38,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:32:38,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 416 [2024-10-24 15:32:38,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand