./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:33:21,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:33:21,350 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:33:21,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:33:21,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:33:21,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:33:21,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:33:21,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:33:21,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:33:21,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:33:21,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:33:21,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:33:21,381 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:33:21,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:33:21,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:33:21,382 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:33:21,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:33:21,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:33:21,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:33:21,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:33:21,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:33:21,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:33:21,387 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:33:21,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:33:21,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:33:21,388 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:33:21,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:33:21,388 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:33:21,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:33:21,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:33:21,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:33:21,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:33:21,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:33:21,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:33:21,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:33:21,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:33:21,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:33:21,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:33:21,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:33:21,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:33:21,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:33:21,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 [2024-10-24 15:33:21,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:33:21,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:33:21,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:33:21,621 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:33:21,622 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:33:21,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2024-10-24 15:33:22,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:33:22,983 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:33:22,983 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2024-10-24 15:33:22,989 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925e0943/ef63302c4fde44b093985f9df5f663dd/FLAG4366ac5a2 [2024-10-24 15:33:22,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925e0943/ef63302c4fde44b093985f9df5f663dd [2024-10-24 15:33:23,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:33:23,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:33:23,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:33:23,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:33:23,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:33:23,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230c0c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23, skipping insertion in model container [2024-10-24 15:33:23,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:33:23,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:33:23,185 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:33:23,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:33:23,215 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:33:23,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23 WrapperNode [2024-10-24 15:33:23,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:33:23,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:33:23,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:33:23,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:33:23,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,285 INFO L138 Inliner]: procedures = 22, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2024-10-24 15:33:23,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:33:23,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:33:23,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:33:23,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:33:23,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:33:23,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:33:23,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:33:23,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:33:23,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (1/1) ... [2024-10-24 15:33:23,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:33:23,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:33:23,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:33:23,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:33:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:33:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 15:33:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 15:33:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 15:33:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 15:33:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 15:33:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 15:33:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-24 15:33:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-24 15:33:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:33:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 15:33:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 15:33:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:33:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:33:23,392 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:33:23,485 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:33:23,486 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:33:23,723 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:33:23,723 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:33:23,824 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:33:23,824 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-24 15:33:23,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:33:23 BoogieIcfgContainer [2024-10-24 15:33:23,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:33:23,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:33:23,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:33:23,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:33:23,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:33:23" (1/3) ... [2024-10-24 15:33:23,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40607530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:33:23, skipping insertion in model container [2024-10-24 15:33:23,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:33:23" (2/3) ... [2024-10-24 15:33:23,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40607530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:33:23, skipping insertion in model container [2024-10-24 15:33:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:33:23" (3/3) ... [2024-10-24 15:33:23,833 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2024-10-24 15:33:23,845 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:33:23,845 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-24 15:33:23,845 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:33:23,899 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 15:33:23,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 158 transitions, 344 flow [2024-10-24 15:33:23,996 INFO L124 PetriNetUnfolderBase]: 9/154 cut-off events. [2024-10-24 15:33:23,997 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:33:24,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 154 events. 9/154 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 233 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-10-24 15:33:24,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 158 transitions, 344 flow [2024-10-24 15:33:24,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 137 transitions, 298 flow [2024-10-24 15:33:24,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:33:24,029 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;@4c6c2add, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:33:24,029 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-10-24 15:33:24,033 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:33:24,033 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-24 15:33:24,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:33:24,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:33:24,034 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] [2024-10-24 15:33:24,034 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-24 15:33:24,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:33:24,039 INFO L85 PathProgramCache]: Analyzing trace with hash 665260195, now seen corresponding path program 1 times [2024-10-24 15:33:24,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:33:24,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91594811] [2024-10-24 15:33:24,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:33:24,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:33:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:33:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:33:24,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:33:24,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91594811] [2024-10-24 15:33:24,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91594811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:33:24,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:33:24,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:33:24,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747464116] [2024-10-24 15:33:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:33:24,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:33:24,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:33:24,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:33:24,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:33:24,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 158 [2024-10-24 15:33:24,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:33:24,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 158 [2024-10-24 15:33:24,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:33:24,405 INFO L124 PetriNetUnfolderBase]: 167/665 cut-off events. [2024-10-24 15:33:24,406 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-10-24 15:33:24,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 665 events. 167/665 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3963 event pairs, 119 based on Foata normal form. 64/648 useless extension candidates. Maximal degree in co-relation 860. Up to 245 conditions per place. [2024-10-24 15:33:24,417 INFO L140 encePairwiseOnDemand]: 141/158 looper letters, 17 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2024-10-24 15:33:24,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 122 transitions, 306 flow [2024-10-24 15:33:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:33:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:33:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2024-10-24 15:33:24,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375527426160337 [2024-10-24 15:33:24,433 INFO L175 Difference]: Start difference. First operand has 142 places, 137 transitions, 298 flow. Second operand 3 states and 397 transitions. [2024-10-24 15:33:24,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 122 transitions, 306 flow [2024-10-24 15:33:24,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 122 transitions, 290 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-24 15:33:24,441 INFO L231 Difference]: Finished difference. Result has 125 places, 122 transitions, 256 flow [2024-10-24 15:33:24,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=125, PETRI_TRANSITIONS=122} [2024-10-24 15:33:24,445 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -17 predicate places. [2024-10-24 15:33:24,447 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 122 transitions, 256 flow [2024-10-24 15:33:24,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:33:24,448 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] [2024-10-24 15:33:24,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:33:24,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-24 15:33:24,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:33:24,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1203876352, now seen corresponding path program 1 times [2024-10-24 15:33:24,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:33:24,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381515326] [2024-10-24 15:33:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:33:24,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:33:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:33:24,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:33:24,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:33:24,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381515326] [2024-10-24 15:33:24,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381515326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:33:24,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:33:24,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:33:24,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188275767] [2024-10-24 15:33:24,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:33:24,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:33:24,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:33:24,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:33:24,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:33:24,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 158 [2024-10-24 15:33:24,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:33:24,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 158 [2024-10-24 15:33:24,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:33:24,614 INFO L124 PetriNetUnfolderBase]: 163/664 cut-off events. [2024-10-24 15:33:24,614 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-10-24 15:33:24,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 664 events. 163/664 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3960 event pairs, 119 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 899. Up to 238 conditions per place. [2024-10-24 15:33:24,627 INFO L140 encePairwiseOnDemand]: 155/158 looper letters, 17 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-10-24 15:33:24,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 121 transitions, 292 flow [2024-10-24 15:33:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:33:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:33:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2024-10-24 15:33:24,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8080168776371308 [2024-10-24 15:33:24,630 INFO L175 Difference]: Start difference. First operand has 125 places, 122 transitions, 256 flow. Second operand 3 states and 383 transitions. [2024-10-24 15:33:24,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 121 transitions, 292 flow [2024-10-24 15:33:24,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 121 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:33:24,634 INFO L231 Difference]: Finished difference. Result has 124 places, 121 transitions, 254 flow [2024-10-24 15:33:24,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=124, PETRI_TRANSITIONS=121} [2024-10-24 15:33:24,635 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -18 predicate places. [2024-10-24 15:33:24,635 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 121 transitions, 254 flow [2024-10-24 15:33:24,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:33:24,636 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] [2024-10-24 15:33:24,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:33:24,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-24 15:33:24,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:33:24,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1640571476, now seen corresponding path program 1 times [2024-10-24 15:33:24,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:33:24,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212128570] [2024-10-24 15:33:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:33:24,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:33:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:33:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:33:24,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:33:24,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212128570] [2024-10-24 15:33:24,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212128570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:33:24,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:33:24,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:33:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37602770] [2024-10-24 15:33:24,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:33:24,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:33:24,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:33:24,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:33:24,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:33:24,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 158 [2024-10-24 15:33:24,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 121 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:33:24,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 158 [2024-10-24 15:33:24,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:33:24,778 INFO L124 PetriNetUnfolderBase]: 273/826 cut-off events. [2024-10-24 15:33:24,778 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-10-24 15:33:24,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1282 conditions, 826 events. 273/826 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5131 event pairs, 57 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 1244. Up to 393 conditions per place. [2024-10-24 15:33:24,786 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 22 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2024-10-24 15:33:24,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 126 transitions, 315 flow [2024-10-24 15:33:24,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:33:24,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:33:24,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-10-24 15:33:24,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-24 15:33:24,790 INFO L175 Difference]: Start difference. First operand has 124 places, 121 transitions, 254 flow. Second operand 3 states and 395 transitions. [2024-10-24 15:33:24,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 126 transitions, 315 flow [2024-10-24 15:33:24,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 126 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:33:24,794 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 260 flow [2024-10-24 15:33:24,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2024-10-24 15:33:24,796 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -19 predicate places. [2024-10-24 15:33:24,799 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 260 flow [2024-10-24 15:33:24,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:33:24,800 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] [2024-10-24 15:33:24,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:33:24,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-24 15:33:24,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:33:24,801 INFO L85 PathProgramCache]: Analyzing trace with hash 606694195, now seen corresponding path program 1 times [2024-10-24 15:33:24,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:33:24,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211013888] [2024-10-24 15:33:24,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:33:24,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:33:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:33:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:33:24,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:33:24,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211013888] [2024-10-24 15:33:24,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211013888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:33:24,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:33:24,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:33:24,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621012310] [2024-10-24 15:33:24,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:33:24,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:33:24,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:33:24,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:33:24,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:33:24,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 158 [2024-10-24 15:33:24,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:33:24,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 158 [2024-10-24 15:33:24,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:33:24,958 INFO L124 PetriNetUnfolderBase]: 321/1014 cut-off events. [2024-10-24 15:33:24,959 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-10-24 15:33:24,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 1014 events. 321/1014 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6912 event pairs, 154 based on Foata normal form. 0/931 useless extension candidates. Maximal degree in co-relation 1269. Up to 429 conditions per place. [2024-10-24 15:33:24,966 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 22 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2024-10-24 15:33:24,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 126 transitions, 321 flow [2024-10-24 15:33:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:33:24,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:33:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-10-24 15:33:24,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-24 15:33:24,968 INFO L175 Difference]: Start difference. First operand has 123 places, 121 transitions, 260 flow. Second operand 3 states and 395 transitions. [2024-10-24 15:33:24,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 126 transitions, 321 flow [2024-10-24 15:33:24,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 126 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:33:24,970 INFO L231 Difference]: Finished difference. Result has 124 places, 121 transitions, 270 flow [2024-10-24 15:33:24,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=124, PETRI_TRANSITIONS=121} [2024-10-24 15:33:24,972 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -18 predicate places. [2024-10-24 15:33:24,972 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 121 transitions, 270 flow [2024-10-24 15:33:24,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:24,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:33:24,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:33:24,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:33:24,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-24 15:33:24,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:33:24,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1406540590, now seen corresponding path program 1 times [2024-10-24 15:33:24,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:33:24,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822139330] [2024-10-24 15:33:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:33:24,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:33:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:33:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:33:25,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:33:25,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822139330] [2024-10-24 15:33:25,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822139330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:33:25,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:33:25,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:33:25,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001397732] [2024-10-24 15:33:25,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:33:25,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:33:25,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:33:25,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:33:25,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:33:25,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 158 [2024-10-24 15:33:25,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 121 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:25,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:33:25,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 158 [2024-10-24 15:33:25,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:33:25,138 INFO L124 PetriNetUnfolderBase]: 104/523 cut-off events. [2024-10-24 15:33:25,141 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-24 15:33:25,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 523 events. 104/523 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2965 event pairs, 66 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 574. Up to 125 conditions per place. [2024-10-24 15:33:25,145 INFO L140 encePairwiseOnDemand]: 156/158 looper letters, 13 selfloop transitions, 1 changer transitions 0/120 dead transitions. [2024-10-24 15:33:25,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 120 transitions, 296 flow [2024-10-24 15:33:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:33:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:33:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2024-10-24 15:33:25,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354430379746836 [2024-10-24 15:33:25,147 INFO L175 Difference]: Start difference. First operand has 124 places, 121 transitions, 270 flow. Second operand 3 states and 396 transitions. [2024-10-24 15:33:25,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 120 transitions, 296 flow [2024-10-24 15:33:25,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 120 transitions, 296 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:33:25,148 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 270 flow [2024-10-24 15:33:25,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2024-10-24 15:33:25,150 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -17 predicate places. [2024-10-24 15:33:25,151 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 270 flow [2024-10-24 15:33:25,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:25,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:33:25,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:33:25,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:33:25,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-24 15:33:25,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:33:25,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1763867963, now seen corresponding path program 1 times [2024-10-24 15:33:25,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:33:25,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037433540] [2024-10-24 15:33:25,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:33:25,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:33:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:33:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:33:25,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:33:25,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037433540] [2024-10-24 15:33:25,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037433540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:33:25,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:33:25,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:33:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991223437] [2024-10-24 15:33:25,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:33:25,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:33:25,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:33:25,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:33:25,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:33:25,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 158 [2024-10-24 15:33:25,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:25,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:33:25,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 158 [2024-10-24 15:33:25,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:33:25,303 INFO L124 PetriNetUnfolderBase]: 104/522 cut-off events. [2024-10-24 15:33:25,303 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-24 15:33:25,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 522 events. 104/522 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2959 event pairs, 66 based on Foata normal form. 1/492 useless extension candidates. Maximal degree in co-relation 725. Up to 125 conditions per place. [2024-10-24 15:33:25,305 INFO L140 encePairwiseOnDemand]: 156/158 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2024-10-24 15:33:25,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 119 transitions, 294 flow [2024-10-24 15:33:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:33:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:33:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-10-24 15:33:25,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-24 15:33:25,307 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 270 flow. Second operand 3 states and 395 transitions. [2024-10-24 15:33:25,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 119 transitions, 294 flow [2024-10-24 15:33:25,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 119 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:33:25,308 INFO L231 Difference]: Finished difference. Result has 125 places, 0 transitions, 0 flow [2024-10-24 15:33:25,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=125, PETRI_TRANSITIONS=0} [2024-10-24 15:33:25,309 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -17 predicate places. [2024-10-24 15:33:25,310 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 0 transitions, 0 flow [2024-10-24 15:33:25,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:33:25,312 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2024-10-24 15:33:25,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-10-24 15:33:25,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-10-24 15:33:25,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-10-24 15:33:25,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-10-24 15:33:25,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-10-24 15:33:25,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2024-10-24 15:33:25,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-10-24 15:33:25,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-10-24 15:33:25,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-10-24 15:33:25,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-10-24 15:33:25,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-10-24 15:33:25,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-10-24 15:33:25,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-10-24 15:33:25,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-10-24 15:33:25,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-10-24 15:33:25,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-10-24 15:33:25,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-10-24 15:33:25,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-10-24 15:33:25,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-10-24 15:33:25,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-10-24 15:33:25,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-10-24 15:33:25,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-10-24 15:33:25,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-10-24 15:33:25,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-10-24 15:33:25,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-10-24 15:33:25,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-10-24 15:33:25,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-10-24 15:33:25,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-10-24 15:33:25,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:33:25,322 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 15:33:25,328 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:33:25,328 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:33:25,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:33:25 BasicIcfg [2024-10-24 15:33:25,333 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:33:25,334 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:33:25,334 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:33:25,334 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:33:25,334 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:33:23" (3/4) ... [2024-10-24 15:33:25,335 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:33:25,338 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-24 15:33:25,338 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-24 15:33:25,338 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-24 15:33:25,339 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2024-10-24 15:33:25,342 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-24 15:33:25,342 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 15:33:25,342 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 15:33:25,342 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 15:33:25,415 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:33:25,415 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:33:25,415 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:33:25,416 INFO L158 Benchmark]: Toolchain (without parser) took 2413.97ms. Allocated memory was 184.5MB in the beginning and 230.7MB in the end (delta: 46.1MB). Free memory was 117.7MB in the beginning and 175.8MB in the end (delta: -58.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:33:25,416 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:33:25,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.74ms. Allocated memory is still 184.5MB. Free memory was 117.5MB in the beginning and 104.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 15:33:25,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.26ms. Allocated memory is still 184.5MB. Free memory was 104.1MB in the beginning and 157.3MB in the end (delta: -53.1MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-10-24 15:33:25,417 INFO L158 Benchmark]: Boogie Preprocessor took 19.14ms. Allocated memory is still 184.5MB. Free memory was 157.3MB in the beginning and 156.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:33:25,417 INFO L158 Benchmark]: RCFGBuilder took 518.43ms. Allocated memory is still 184.5MB. Free memory was 156.2MB in the beginning and 129.7MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-24 15:33:25,417 INFO L158 Benchmark]: TraceAbstraction took 1506.01ms. Allocated memory was 184.5MB in the beginning and 230.7MB in the end (delta: 46.1MB). Free memory was 128.9MB in the beginning and 181.0MB in the end (delta: -52.1MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. [2024-10-24 15:33:25,418 INFO L158 Benchmark]: Witness Printer took 81.83ms. Allocated memory is still 230.7MB. Free memory was 181.0MB in the beginning and 175.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:33:25,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.74ms. Allocated memory is still 184.5MB. Free memory was 117.5MB in the beginning and 104.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.26ms. Allocated memory is still 184.5MB. Free memory was 104.1MB in the beginning and 157.3MB in the end (delta: -53.1MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.14ms. Allocated memory is still 184.5MB. Free memory was 157.3MB in the beginning and 156.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 518.43ms. Allocated memory is still 184.5MB. Free memory was 156.2MB in the beginning and 129.7MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1506.01ms. Allocated memory was 184.5MB in the beginning and 230.7MB in the end (delta: 46.1MB). Free memory was 128.9MB in the beginning and 181.0MB in the end (delta: -52.1MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. * Witness Printer took 81.83ms. Allocated memory is still 230.7MB. Free memory was 181.0MB in the beginning and 175.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 220 locations, 36 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: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 200 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 30 mSDtfsCounter, 200 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.3s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 15:33:25,443 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 Result: TRUE