./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:44:44,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:44:44,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:44:44,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:44:44,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:44:44,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:44:44,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:44:44,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:44:44,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:44:44,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:44:44,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:44:44,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:44:44,177 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:44:44,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:44:44,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:44:44,181 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:44:44,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:44:44,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:44:44,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:44:44,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:44:44,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:44:44,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:44:44,189 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:44:44,189 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:44:44,189 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:44:44,189 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:44:44,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:44:44,190 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:44:44,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:44:44,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:44:44,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:44:44,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:44:44,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:44:44,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:44:44,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:44:44,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:44:44,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:44:44,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:44:44,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:44:44,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:44:44,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:44:44,195 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-10-13 09:44:44,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:44:44,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:44:44,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:44:44,488 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:44:44,489 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:44:44,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-10-13 09:44:46,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:44:46,260 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:44:46,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-10-13 09:44:46,288 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c982b87ac/7dd602c338bd41a693533d99c708ee78/FLAGf40b3bea2 [2024-10-13 09:44:46,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c982b87ac/7dd602c338bd41a693533d99c708ee78 [2024-10-13 09:44:46,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:44:46,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:44:46,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:44:46,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:44:46,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:44:46,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:44:46" (1/1) ... [2024-10-13 09:44:46,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a335d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:46, skipping insertion in model container [2024-10-13 09:44:46,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:44:46" (1/1) ... [2024-10-13 09:44:46,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:44:47,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:44:47,136 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:44:47,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:44:47,297 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:44:47,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47 WrapperNode [2024-10-13 09:44:47,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:44:47,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:44:47,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:44:47,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:44:47,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,448 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 1753 [2024-10-13 09:44:47,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:44:47,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:44:47,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:44:47,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:44:47,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:44:47,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:44:47,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:44:47,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:44:47,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (1/1) ... [2024-10-13 09:44:47,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:44:47,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:44:47,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:44:47,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:44:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 09:44:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:44:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 09:44:47,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 09:44:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 09:44:47,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 09:44:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 09:44:47,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 09:44:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:44:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 09:44:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:44:47,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:44:47,684 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:44:47,923 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:44:47,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:44:50,486 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:44:50,486 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:45:01,269 WARN L1752 r$LargeBlockEncoding]: Complex 6:118 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-10-13 09:45:02,585 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:45:02,585 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:45:02,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:45:02 BoogieIcfgContainer [2024-10-13 09:45:02,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:45:02,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:45:02,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:45:02,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:45:02,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:44:46" (1/3) ... [2024-10-13 09:45:02,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455eb317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:45:02, skipping insertion in model container [2024-10-13 09:45:02,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:44:47" (2/3) ... [2024-10-13 09:45:02,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455eb317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:45:02, skipping insertion in model container [2024-10-13 09:45:02,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:45:02" (3/3) ... [2024-10-13 09:45:02,598 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-10-13 09:45:02,614 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:45:02,614 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 567 error locations. [2024-10-13 09:45:02,614 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:45:03,496 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:45:03,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 689 places, 1272 transitions, 2556 flow [2024-10-13 09:45:04,660 INFO L124 PetriNetUnfolderBase]: 593/1269 cut-off events. [2024-10-13 09:45:04,661 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:45:04,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 1269 events. 593/1269 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 6016 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 1233. Up to 6 conditions per place. [2024-10-13 09:45:04,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 689 places, 1272 transitions, 2556 flow [2024-10-13 09:45:04,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 686 places, 1269 transitions, 2547 flow [2024-10-13 09:45:04,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:45:04,951 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64f1a431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:45:04,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 957 error locations. [2024-10-13 09:45:04,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:45:04,961 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-10-13 09:45:04,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:45:04,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:45:04,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:45:04,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err4ASSERT_VIOLATIONDATA_RACE (and 953 more)] === [2024-10-13 09:45:04,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:45:04,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1411268603, now seen corresponding path program 1 times [2024-10-13 09:45:04,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:45:04,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442680479] [2024-10-13 09:45:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:45:04,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:45:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:45:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:45:05,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:45:05,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442680479] [2024-10-13 09:45:05,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442680479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:45:05,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:45:05,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:45:05,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666046368] [2024-10-13 09:45:05,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:45:05,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:45:05,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:45:05,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:45:05,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:45:05,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 1272 [2024-10-13 09:45:05,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 1269 transitions, 2547 flow. Second operand has 2 states, 2 states have (on average 93.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:45:05,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:45:05,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 1272 [2024-10-13 09:45:05,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:46:02,637 INFO L124 PetriNetUnfolderBase]: 3090/7808 cut-off events. [2024-10-13 09:46:02,637 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-10-13 09:46:02,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11895 conditions, 7808 events. 3090/7808 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 73010 event pairs, 2010 based on Foata normal form. 614/6815 useless extension candidates. Maximal degree in co-relation 11847. Up to 3997 conditions per place. [2024-10-13 09:46:02,692 INFO L140 encePairwiseOnDemand]: 119/1272 looper letters, 26 selfloop transitions, 0 changer transitions 0/114 dead transitions. [2024-10-13 09:46:02,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 289 flow [2024-10-13 09:46:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:46:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:46:02,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1363 transitions. [2024-10-13 09:46:02,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357704402515723 [2024-10-13 09:46:02,728 INFO L175 Difference]: Start difference. First operand has 686 places, 1269 transitions, 2547 flow. Second operand 2 states and 1363 transitions. [2024-10-13 09:46:02,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 289 flow [2024-10-13 09:46:02,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 114 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 09:46:02,737 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 234 flow [2024-10-13 09:46:02,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1272, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=234, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2024-10-13 09:46:02,744 INFO L277 CegarLoopForPetriNet]: 686 programPoint places, -569 predicate places. [2024-10-13 09:46:02,747 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 234 flow [2024-10-13 09:46:02,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 93.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:46:02,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:46:02,748 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:46:02,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:46:02,748 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err4ASSERT_VIOLATIONDATA_RACE (and 953 more)] === [2024-10-13 09:46:02,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:46:02,749 INFO L85 PathProgramCache]: Analyzing trace with hash 452513923, now seen corresponding path program 1 times [2024-10-13 09:46:02,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:46:02,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126077679] [2024-10-13 09:46:02,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:46:02,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:46:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:46:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:46:02,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:46:02,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126077679] [2024-10-13 09:46:02,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126077679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:46:02,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:46:02,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:46:02,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721000242] [2024-10-13 09:46:02,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:46:02,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:46:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:46:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:46:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:46:02,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 1272 [2024-10-13 09:46:02,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:46:02,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:46:02,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 1272 [2024-10-13 09:46:02,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand