./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-array-dynamic-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-array-dynamic-race.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 ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:30:49,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:30:50,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:30:50,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:30:50,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:30:50,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:30:50,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:30:50,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:30:50,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:30:50,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:30:50,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:30:50,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:30:50,080 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:30:50,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:30:50,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:30:50,080 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:30:50,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:30:50,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:30:50,081 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:30:50,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:30:50,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:30:50,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:30:50,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:30:50,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:30:50,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:30:50,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:30:50,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:30:50,082 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca [2025-04-30 10:30:50,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:30:50,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:30:50,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:30:50,314 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:30:50,314 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:30:50,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-array-dynamic-race.i [2025-04-30 10:30:51,589 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/964aa268c/20729e3d72e4427c9d72e40133a31749/FLAG993d8819c [2025-04-30 10:30:51,808 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:30:51,809 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-race-challenges/thread-join-array-dynamic-race.i [2025-04-30 10:30:51,826 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/964aa268c/20729e3d72e4427c9d72e40133a31749/FLAG993d8819c [2025-04-30 10:30:52,590 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/964aa268c/20729e3d72e4427c9d72e40133a31749 [2025-04-30 10:30:52,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:30:52,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:30:52,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:30:52,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:30:52,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:30:52,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:30:52" (1/1) ... [2025-04-30 10:30:52,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7790b926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:52, skipping insertion in model container [2025-04-30 10:30:52,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:30:52" (1/1) ... [2025-04-30 10:30:52,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:30:52,975 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:30:52,997 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:30:53,050 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:30:53,087 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:30:53,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53 WrapperNode [2025-04-30 10:30:53,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:30:53,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:30:53,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:30:53,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:30:53,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,117 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2025-04-30 10:30:53,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:30:53,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:30:53,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:30:53,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:30:53,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,135 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:30:53,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:30:53,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:30:53,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:30:53,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (1/1) ... [2025-04-30 10:30:53,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:30:53,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:30:53,176 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) [2025-04-30 10:30:53,181 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 [2025-04-30 10:30:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-04-30 10:30:53,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-04-30 10:30:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:30:53,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:30:53,201 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:30:53,284 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:30:53,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:30:53,429 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:30:53,429 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:30:53,442 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:30:53,442 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:30:53,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:30:53 BoogieIcfgContainer [2025-04-30 10:30:53,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:30:53,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:30:53,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:30:53,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:30:53,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:30:52" (1/3) ... [2025-04-30 10:30:53,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f0b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:30:53, skipping insertion in model container [2025-04-30 10:30:53,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:30:53" (2/3) ... [2025-04-30 10:30:53,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f0b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:30:53, skipping insertion in model container [2025-04-30 10:30:53,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:30:53" (3/3) ... [2025-04-30 10:30:53,449 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race.i [2025-04-30 10:30:53,458 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:30:53,459 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-dynamic-race.i that has 2 procedures, 87 locations, 88 edges, 1 initial locations, 2 loop locations, and 4 error locations. [2025-04-30 10:30:53,459 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:30:53,504 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:30:53,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 89 transitions, 185 flow [2025-04-30 10:30:53,581 INFO L116 PetriNetUnfolderBase]: 2/121 cut-off events. [2025-04-30 10:30:53,582 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:30:53,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 2/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 204 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 60. Up to 3 conditions per place. [2025-04-30 10:30:53,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 89 transitions, 185 flow [2025-04-30 10:30:53,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 185 flow [2025-04-30 10:30:53,599 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:30:53,609 INFO L340 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;@2070ad0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:30:53,610 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-04-30 10:30:53,622 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:30:53,623 INFO L116 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-04-30 10:30:53,623 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:30:53,623 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:53,624 INFO L206 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] [2025-04-30 10:30:53,625 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-30 10:30:53,629 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:53,630 INFO L85 PathProgramCache]: Analyzing trace with hash -9187041, now seen corresponding path program 1 times [2025-04-30 10:30:53,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:53,635 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031653069] [2025-04-30 10:30:53,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:53,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:53,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-30 10:30:53,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-30 10:30:53,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:53,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:53,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:53,799 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031653069] [2025-04-30 10:30:53,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031653069] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:53,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:53,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:30:53,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882196992] [2025-04-30 10:30:53,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:53,805 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:30:53,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:53,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:30:53,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:30:53,842 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 89 [2025-04-30 10:30:53,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-04-30 10:30:53,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:53,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 89 [2025-04-30 10:30:53,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:53,901 INFO L116 PetriNetUnfolderBase]: 8/163 cut-off events. [2025-04-30 10:30:53,901 INFO L117 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-04-30 10:30:53,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 163 events. 8/163 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 414 event pairs, 1 based on Foata normal form. 1/147 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2025-04-30 10:30:53,902 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 8 selfloop transitions, 3 changer transitions 2/92 dead transitions. [2025-04-30 10:30:53,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 215 flow [2025-04-30 10:30:53,904 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:30:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:30:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2025-04-30 10:30:53,916 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.951310861423221 [2025-04-30 10:30:53,917 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 185 flow. Second operand 3 states and 254 transitions. [2025-04-30 10:30:53,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 215 flow [2025-04-30 10:30:53,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 92 transitions, 215 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:30:53,927 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 203 flow [2025-04-30 10:30:53,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2025-04-30 10:30:53,931 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2025-04-30 10:30:53,932 INFO L485 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 203 flow [2025-04-30 10:30:53,932 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-04-30 10:30:53,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:53,932 INFO L206 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] [2025-04-30 10:30:53,932 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:30:53,932 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-30 10:30:53,933 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash -418826439, now seen corresponding path program 1 times [2025-04-30 10:30:53,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:53,934 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809797442] [2025-04-30 10:30:53,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:53,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:53,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:30:53,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:30:53,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:53,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:54,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:54,107 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809797442] [2025-04-30 10:30:54,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809797442] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:54,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:54,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:30:54,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949198992] [2025-04-30 10:30:54,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:54,109 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:30:54,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:54,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:30:54,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:30:54,186 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 89 [2025-04-30 10:30:54,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2025-04-30 10:30:54,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:54,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 89 [2025-04-30 10:30:54,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:54,249 INFO L116 PetriNetUnfolderBase]: 17/236 cut-off events. [2025-04-30 10:30:54,249 INFO L117 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-04-30 10:30:54,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 236 events. 17/236 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 835 event pairs, 1 based on Foata normal form. 1/220 useless extension candidates. Maximal degree in co-relation 224. Up to 49 conditions per place. [2025-04-30 10:30:54,252 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 15 selfloop transitions, 2 changer transitions 5/96 dead transitions. [2025-04-30 10:30:54,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 96 transitions, 261 flow [2025-04-30 10:30:54,253 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:30:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:30:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2025-04-30 10:30:54,254 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8632958801498127 [2025-04-30 10:30:54,255 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 203 flow. Second operand 6 states and 461 transitions. [2025-04-30 10:30:54,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 96 transitions, 261 flow [2025-04-30 10:30:54,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 96 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:30:54,259 INFO L231 Difference]: Finished difference. Result has 100 places, 89 transitions, 215 flow [2025-04-30 10:30:54,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=100, PETRI_TRANSITIONS=89} [2025-04-30 10:30:54,260 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2025-04-30 10:30:54,260 INFO L485 AbstractCegarLoop]: Abstraction has has 100 places, 89 transitions, 215 flow [2025-04-30 10:30:54,260 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2025-04-30 10:30:54,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:54,260 INFO L206 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] [2025-04-30 10:30:54,260 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:30:54,260 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-30 10:30:54,261 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:54,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2133540115, now seen corresponding path program 1 times [2025-04-30 10:30:54,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:54,261 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926297948] [2025-04-30 10:30:54,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:54,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:54,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:30:54,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:30:54,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:54,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:54,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:54,599 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926297948] [2025-04-30 10:30:54,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926297948] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:54,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:54,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:30:54,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31869785] [2025-04-30 10:30:54,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:54,600 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:30:54,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:54,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:30:54,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:30:54,693 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2025-04-30 10:30:54,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 89 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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) [2025-04-30 10:30:54,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:54,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2025-04-30 10:30:54,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:54,771 INFO L116 PetriNetUnfolderBase]: 30/241 cut-off events. [2025-04-30 10:30:54,771 INFO L117 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-04-30 10:30:54,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 241 events. 30/241 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 997 event pairs, 5 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 295. Up to 61 conditions per place. [2025-04-30 10:30:54,775 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 24 selfloop transitions, 5 changer transitions 0/96 dead transitions. [2025-04-30 10:30:54,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 287 flow [2025-04-30 10:30:54,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:30:54,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:30:54,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2025-04-30 10:30:54,779 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.797752808988764 [2025-04-30 10:30:54,779 INFO L175 Difference]: Start difference. First operand has 100 places, 89 transitions, 215 flow. Second operand 6 states and 426 transitions. [2025-04-30 10:30:54,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 287 flow [2025-04-30 10:30:54,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 96 transitions, 273 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-04-30 10:30:54,783 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 209 flow [2025-04-30 10:30:54,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2025-04-30 10:30:54,784 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2025-04-30 10:30:54,784 INFO L485 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 209 flow [2025-04-30 10:30:54,785 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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) [2025-04-30 10:30:54,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:54,785 INFO L206 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] [2025-04-30 10:30:54,785 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:30:54,786 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-30 10:30:54,786 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:54,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1863812927, now seen corresponding path program 1 times [2025-04-30 10:30:54,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:54,787 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173807538] [2025-04-30 10:30:54,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:54,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:54,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-30 10:30:54,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-30 10:30:54,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:54,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:54,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:54,831 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173807538] [2025-04-30 10:30:54,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173807538] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:54,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:54,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:30:54,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283341893] [2025-04-30 10:30:54,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:54,832 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:30:54,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:54,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:30:54,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:30:54,844 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 89 [2025-04-30 10:30:54,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2025-04-30 10:30:54,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:54,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 89 [2025-04-30 10:30:54,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:54,877 INFO L116 PetriNetUnfolderBase]: 5/169 cut-off events. [2025-04-30 10:30:54,877 INFO L117 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2025-04-30 10:30:54,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 169 events. 5/169 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 469 event pairs, 3 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 175. Up to 25 conditions per place. [2025-04-30 10:30:54,880 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 8 selfloop transitions, 4 changer transitions 3/91 dead transitions. [2025-04-30 10:30:54,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 245 flow [2025-04-30 10:30:54,881 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:30:54,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:30:54,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2025-04-30 10:30:54,881 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9288389513108615 [2025-04-30 10:30:54,882 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 209 flow. Second operand 3 states and 248 transitions. [2025-04-30 10:30:54,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 245 flow [2025-04-30 10:30:54,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 235 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-30 10:30:54,884 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 221 flow [2025-04-30 10:30:54,885 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2025-04-30 10:30:54,885 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2025-04-30 10:30:54,885 INFO L485 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 221 flow [2025-04-30 10:30:54,885 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2025-04-30 10:30:54,885 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:54,885 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:30:54,886 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:30:54,886 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-30 10:30:54,886 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:54,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1154489115, now seen corresponding path program 1 times [2025-04-30 10:30:54,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:54,886 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030024472] [2025-04-30 10:30:54,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:54,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:54,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-04-30 10:30:54,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-30 10:30:54,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:54,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:55,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:55,014 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030024472] [2025-04-30 10:30:55,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030024472] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:55,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:55,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-30 10:30:55,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488882469] [2025-04-30 10:30:55,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:55,015 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-30 10:30:55,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:55,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-30 10:30:55,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-04-30 10:30:55,165 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2025-04-30 10:30:55,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 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) [2025-04-30 10:30:55,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:55,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2025-04-30 10:30:55,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:55,242 INFO L116 PetriNetUnfolderBase]: 19/193 cut-off events. [2025-04-30 10:30:55,243 INFO L117 PetriNetUnfolderBase]: For 22/26 co-relation queries the response was YES. [2025-04-30 10:30:55,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 193 events. 19/193 cut-off events. For 22/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 728 event pairs, 0 based on Foata normal form. 3/192 useless extension candidates. Maximal degree in co-relation 253. Up to 13 conditions per place. [2025-04-30 10:30:55,244 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 17 selfloop transitions, 9 changer transitions 4/90 dead transitions. [2025-04-30 10:30:55,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 282 flow [2025-04-30 10:30:55,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-30 10:30:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-30 10:30:55,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 661 transitions. [2025-04-30 10:30:55,245 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8252184769038702 [2025-04-30 10:30:55,246 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 221 flow. Second operand 9 states and 661 transitions. [2025-04-30 10:30:55,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 282 flow [2025-04-30 10:30:55,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:30:55,248 INFO L231 Difference]: Finished difference. Result has 89 places, 75 transitions, 202 flow [2025-04-30 10:30:55,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=89, PETRI_TRANSITIONS=75} [2025-04-30 10:30:55,248 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -1 predicate places. [2025-04-30 10:30:55,248 INFO L485 AbstractCegarLoop]: Abstraction has has 89 places, 75 transitions, 202 flow [2025-04-30 10:30:55,249 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 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) [2025-04-30 10:30:55,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:55,250 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1] [2025-04-30 10:30:55,250 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:30:55,250 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-30 10:30:55,251 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash -187091962, now seen corresponding path program 1 times [2025-04-30 10:30:55,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:55,251 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999654422] [2025-04-30 10:30:55,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:55,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:55,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-30 10:30:55,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-30 10:30:55,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:55,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:30:55,281 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:30:55,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-30 10:30:55,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-30 10:30:55,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:55,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:30:55,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:30:55,308 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:30:55,309 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2025-04-30 10:30:55,310 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2025-04-30 10:30:55,310 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2025-04-30 10:30:55,310 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2025-04-30 10:30:55,310 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2025-04-30 10:30:55,310 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2025-04-30 10:30:55,310 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:30:55,311 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-04-30 10:30:55,313 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-04-30 10:30:55,313 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-04-30 10:30:55,326 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-30 10:30:55,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 230 flow [2025-04-30 10:30:55,350 INFO L116 PetriNetUnfolderBase]: 4/205 cut-off events. [2025-04-30 10:30:55,350 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-30 10:30:55,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 205 events. 4/205 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 434 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 123. Up to 6 conditions per place. [2025-04-30 10:30:55,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 107 transitions, 230 flow [2025-04-30 10:30:55,352 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 107 transitions, 230 flow [2025-04-30 10:30:55,352 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:30:55,354 INFO L340 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;@2070ad0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:30:55,354 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-30 10:30:55,358 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:30:55,358 INFO L116 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-04-30 10:30:55,358 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:30:55,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:55,358 INFO L206 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] [2025-04-30 10:30:55,358 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-04-30 10:30:55,358 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash 847901823, now seen corresponding path program 1 times [2025-04-30 10:30:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:55,359 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722748867] [2025-04-30 10:30:55,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:55,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:55,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-30 10:30:55,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-30 10:30:55,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:55,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:55,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:55,380 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722748867] [2025-04-30 10:30:55,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722748867] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:55,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:55,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:30:55,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732178299] [2025-04-30 10:30:55,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:55,381 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:30:55,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:55,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:30:55,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:30:55,391 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 107 [2025-04-30 10:30:55,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2025-04-30 10:30:55,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:55,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 107 [2025-04-30 10:30:55,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:55,477 INFO L116 PetriNetUnfolderBase]: 119/731 cut-off events. [2025-04-30 10:30:55,477 INFO L117 PetriNetUnfolderBase]: For 54/78 co-relation queries the response was YES. [2025-04-30 10:30:55,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 731 events. 119/731 cut-off events. For 54/78 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4305 event pairs, 50 based on Foata normal form. 1/647 useless extension candidates. Maximal degree in co-relation 749. Up to 139 conditions per place. [2025-04-30 10:30:55,481 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 16 selfloop transitions, 4 changer transitions 1/113 dead transitions. [2025-04-30 10:30:55,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 282 flow [2025-04-30 10:30:55,481 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:30:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:30:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2025-04-30 10:30:55,482 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9376947040498442 [2025-04-30 10:30:55,482 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 230 flow. Second operand 3 states and 301 transitions. [2025-04-30 10:30:55,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 113 transitions, 282 flow [2025-04-30 10:30:55,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:30:55,487 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 256 flow [2025-04-30 10:30:55,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2025-04-30 10:30:55,488 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2025-04-30 10:30:55,488 INFO L485 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 256 flow [2025-04-30 10:30:55,488 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2025-04-30 10:30:55,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:55,488 INFO L206 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] [2025-04-30 10:30:55,488 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-30 10:30:55,488 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-04-30 10:30:55,489 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:55,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1390145543, now seen corresponding path program 1 times [2025-04-30 10:30:55,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:55,489 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582792918] [2025-04-30 10:30:55,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:55,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:55,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:30:55,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:30:55,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:55,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:55,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:55,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:55,549 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582792918] [2025-04-30 10:30:55,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582792918] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:55,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:55,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:30:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873400014] [2025-04-30 10:30:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:55,549 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:30:55,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:55,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:30:55,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:30:55,616 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 107 [2025-04-30 10:30:55,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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) [2025-04-30 10:30:55,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:55,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 107 [2025-04-30 10:30:55,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:55,758 INFO L116 PetriNetUnfolderBase]: 189/1195 cut-off events. [2025-04-30 10:30:55,758 INFO L117 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2025-04-30 10:30:55,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1195 events. 189/1195 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8584 event pairs, 131 based on Foata normal form. 1/1096 useless extension candidates. Maximal degree in co-relation 1094. Up to 314 conditions per place. [2025-04-30 10:30:55,765 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 20 selfloop transitions, 2 changer transitions 5/116 dead transitions. [2025-04-30 10:30:55,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 326 flow [2025-04-30 10:30:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:30:55,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:30:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2025-04-30 10:30:55,768 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8566978193146417 [2025-04-30 10:30:55,768 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 256 flow. Second operand 6 states and 550 transitions. [2025-04-30 10:30:55,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 326 flow [2025-04-30 10:30:55,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:30:55,773 INFO L231 Difference]: Finished difference. Result has 119 places, 109 transitions, 270 flow [2025-04-30 10:30:55,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=119, PETRI_TRANSITIONS=109} [2025-04-30 10:30:55,774 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2025-04-30 10:30:55,774 INFO L485 AbstractCegarLoop]: Abstraction has has 119 places, 109 transitions, 270 flow [2025-04-30 10:30:55,774 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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) [2025-04-30 10:30:55,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:55,774 INFO L206 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] [2025-04-30 10:30:55,774 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-30 10:30:55,775 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-04-30 10:30:55,775 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1190108077, now seen corresponding path program 1 times [2025-04-30 10:30:55,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:55,776 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106068983] [2025-04-30 10:30:55,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:55,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:55,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:30:55,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:30:55,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:55,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:55,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:55,961 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106068983] [2025-04-30 10:30:55,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106068983] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:55,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:55,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:30:55,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700395638] [2025-04-30 10:30:55,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:55,961 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:30:55,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:55,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:30:55,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:30:56,045 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2025-04-30 10:30:56,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 109 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2025-04-30 10:30:56,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:56,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2025-04-30 10:30:56,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:56,169 INFO L116 PetriNetUnfolderBase]: 298/1282 cut-off events. [2025-04-30 10:30:56,170 INFO L117 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2025-04-30 10:30:56,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2084 conditions, 1282 events. 298/1282 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9646 event pairs, 130 based on Foata normal form. 0/1183 useless extension candidates. Maximal degree in co-relation 959. Up to 371 conditions per place. [2025-04-30 10:30:56,178 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 37 selfloop transitions, 5 changer transitions 0/124 dead transitions. [2025-04-30 10:30:56,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 124 transitions, 384 flow [2025-04-30 10:30:56,178 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:30:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:30:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2025-04-30 10:30:56,179 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8130841121495327 [2025-04-30 10:30:56,179 INFO L175 Difference]: Start difference. First operand has 119 places, 109 transitions, 270 flow. Second operand 6 states and 522 transitions. [2025-04-30 10:30:56,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 124 transitions, 384 flow [2025-04-30 10:30:56,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 372 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-04-30 10:30:56,182 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 266 flow [2025-04-30 10:30:56,183 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2025-04-30 10:30:56,183 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 7 predicate places. [2025-04-30 10:30:56,183 INFO L485 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 266 flow [2025-04-30 10:30:56,183 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2025-04-30 10:30:56,183 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:56,183 INFO L206 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] [2025-04-30 10:30:56,184 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-30 10:30:56,184 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-04-30 10:30:56,184 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:56,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1019496017, now seen corresponding path program 1 times [2025-04-30 10:30:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:56,184 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384042184] [2025-04-30 10:30:56,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:56,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:56,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-30 10:30:56,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-30 10:30:56,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:56,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:56,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:56,207 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384042184] [2025-04-30 10:30:56,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384042184] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:56,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:56,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:30:56,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060104729] [2025-04-30 10:30:56,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:56,208 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:30:56,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:56,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:30:56,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:30:56,216 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2025-04-30 10:30:56,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2025-04-30 10:30:56,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:56,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2025-04-30 10:30:56,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:56,288 INFO L116 PetriNetUnfolderBase]: 170/1036 cut-off events. [2025-04-30 10:30:56,288 INFO L117 PetriNetUnfolderBase]: For 196/323 co-relation queries the response was YES. [2025-04-30 10:30:56,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1036 events. 170/1036 cut-off events. For 196/323 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7394 event pairs, 74 based on Foata normal form. 4/903 useless extension candidates. Maximal degree in co-relation 670. Up to 268 conditions per place. [2025-04-30 10:30:56,292 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 19 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2025-04-30 10:30:56,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 117 transitions, 350 flow [2025-04-30 10:30:56,293 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:30:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:30:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2025-04-30 10:30:56,293 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9252336448598131 [2025-04-30 10:30:56,293 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 266 flow. Second operand 3 states and 297 transitions. [2025-04-30 10:30:56,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 117 transitions, 350 flow [2025-04-30 10:30:56,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-30 10:30:56,295 INFO L231 Difference]: Finished difference. Result has 115 places, 113 transitions, 312 flow [2025-04-30 10:30:56,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=115, PETRI_TRANSITIONS=113} [2025-04-30 10:30:56,296 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2025-04-30 10:30:56,296 INFO L485 AbstractCegarLoop]: Abstraction has has 115 places, 113 transitions, 312 flow [2025-04-30 10:30:56,296 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2025-04-30 10:30:56,296 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:56,296 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:30:56,296 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-30 10:30:56,296 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-04-30 10:30:56,296 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:56,296 INFO L85 PathProgramCache]: Analyzing trace with hash 890523606, now seen corresponding path program 1 times [2025-04-30 10:30:56,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:56,296 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498101063] [2025-04-30 10:30:56,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:56,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:56,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-04-30 10:30:56,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-30 10:30:56,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:56,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:30:56,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:30:56,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:30:56,385 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498101063] [2025-04-30 10:30:56,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498101063] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:30:56,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:30:56,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-30 10:30:56,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129830301] [2025-04-30 10:30:56,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:30:56,386 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-30 10:30:56,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:30:56,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-30 10:30:56,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-04-30 10:30:56,507 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 107 [2025-04-30 10:30:56,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 85.71428571428571) internal successors, (600), 7 states have internal predecessors, (600), 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) [2025-04-30 10:30:56,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:30:56,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 107 [2025-04-30 10:30:56,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:30:56,661 INFO L116 PetriNetUnfolderBase]: 315/1606 cut-off events. [2025-04-30 10:30:56,661 INFO L117 PetriNetUnfolderBase]: For 249/289 co-relation queries the response was YES. [2025-04-30 10:30:56,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 1606 events. 315/1606 cut-off events. For 249/289 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12803 event pairs, 39 based on Foata normal form. 3/1456 useless extension candidates. Maximal degree in co-relation 1386. Up to 430 conditions per place. [2025-04-30 10:30:56,693 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 36 selfloop transitions, 10 changer transitions 2/138 dead transitions. [2025-04-30 10:30:56,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 138 transitions, 460 flow [2025-04-30 10:30:56,695 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-30 10:30:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-30 10:30:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 805 transitions. [2025-04-30 10:30:56,697 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8359293873312564 [2025-04-30 10:30:56,697 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 312 flow. Second operand 9 states and 805 transitions. [2025-04-30 10:30:56,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 138 transitions, 460 flow [2025-04-30 10:30:56,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 138 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:30:56,701 INFO L231 Difference]: Finished difference. Result has 127 places, 120 transitions, 365 flow [2025-04-30 10:30:56,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=365, PETRI_PLACES=127, PETRI_TRANSITIONS=120} [2025-04-30 10:30:56,702 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 18 predicate places. [2025-04-30 10:30:56,702 INFO L485 AbstractCegarLoop]: Abstraction has has 127 places, 120 transitions, 365 flow [2025-04-30 10:30:56,703 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.71428571428571) internal successors, (600), 7 states have internal predecessors, (600), 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) [2025-04-30 10:30:56,703 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:30:56,703 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:30:56,703 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-30 10:30:56,703 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2025-04-30 10:30:56,703 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:30:56,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1851895211, now seen corresponding path program 1 times [2025-04-30 10:30:56,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:30:56,703 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72480839] [2025-04-30 10:30:56,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:30:56,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:30:56,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:30:56,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:30:56,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:56,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:30:56,727 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:30:56,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:30:56,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:30:56,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:30:56,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:30:56,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:30:56,743 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:30:56,743 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-30 10:30:56,743 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-30 10:30:56,743 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2025-04-30 10:30:56,743 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-30 10:30:56,743 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2025-04-30 10:30:56,743 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-30 10:30:56,743 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-30 10:30:56,743 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-30 10:30:56,744 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-04-30 10:30:56,795 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2025-04-30 10:30:56,796 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:30:56,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:30:56 BasicIcfg [2025-04-30 10:30:56,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:30:56,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:30:56,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:30:56,801 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:30:56,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:30:53" (3/4) ... [2025-04-30 10:30:56,803 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-30 10:30:56,845 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 7. [2025-04-30 10:30:56,880 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:30:56,882 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:30:56,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:30:56,884 INFO L158 Benchmark]: Toolchain (without parser) took 4288.98ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 110.8MB in the beginning and 357.7MB in the end (delta: -246.9MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2025-04-30 10:30:56,885 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:30:56,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.79ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 79.6MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:30:56,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.74ms. Allocated memory is still 142.6MB. Free memory was 79.6MB in the beginning and 77.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:30:56,885 INFO L158 Benchmark]: Boogie Preprocessor took 29.41ms. Allocated memory is still 142.6MB. Free memory was 77.1MB in the beginning and 75.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:30:56,886 INFO L158 Benchmark]: RCFGBuilder took 292.74ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 60.4MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:30:56,886 INFO L158 Benchmark]: TraceAbstraction took 3356.93ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 59.9MB in the beginning and 370.4MB in the end (delta: -310.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:30:56,886 INFO L158 Benchmark]: Witness Printer took 80.87ms. Allocated memory is still 427.8MB. Free memory was 370.4MB in the beginning and 357.7MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:30:56,888 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.79ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 79.6MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.74ms. Allocated memory is still 142.6MB. Free memory was 79.6MB in the beginning and 77.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.41ms. Allocated memory is still 142.6MB. Free memory was 77.1MB in the beginning and 75.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 292.74ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 60.4MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3356.93ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 59.9MB in the beginning and 370.4MB in the end (delta: -310.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.87ms. Allocated memory is still 427.8MB. Free memory was 370.4MB in the beginning and 357.7MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1023]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 int data = 0; VAL [data=0] [L1020] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L1028] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_total=1] [L1029] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\at(cond, Pre)=1, cond=1, data=0, data_mutex={1:0}] [L1029] RET 0 assume_abort_if_not(threads_total >= 0) [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, data_mutex={1:0}, threads_total=1, tids={-2:0}] [L1031] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\at(arg, Pre)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1031] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=1, tids={-2:0}] [L1031] COND FALSE 0 !(i < threads_total) VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1034] 0 int i = 0; VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={-2:0}] [L1034] COND FALSE 0 !(i < threads_total - 1) VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1038] 0 return data; VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=1, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\at(arg, Pre)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [1038] and C: data = __VERIFIER_nondet_int() [1023] - UnprovableResult [Line: 1038]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 105 locations, 107 edges, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 321 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 543 IncrementalHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 47 mSDtfsCounter, 543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 122 locations, 125 edges, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 419 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 393 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 638 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 123 mSDtfsCounter, 638 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=365occurred in iteration=5, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-30 10:30:56,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)