./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/ldv-races/race-1_3b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3b-join.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:02:18,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:02:18,866 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:02:18,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:02:18,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:02:18,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:02:18,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:02:18,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:02:18,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:02:18,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:02:18,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:02:18,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:02:18,923 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:02:18,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:02:18,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:02:18,926 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:02:18,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:02:18,926 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:02:18,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:02:18,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:02:18,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:02:18,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:02:18,931 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:02:18,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:02:18,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:02:18,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:02:18,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:02:18,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:02:18,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:02:18,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:02:18,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:02:18,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:02:18,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:02:18,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:02:18,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:02:18,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:02:18,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:02:18,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:02:18,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:02:18,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:02:18,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:02:18,937 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b [2024-10-11 17:02:19,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:02:19,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:02:19,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:02:19,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:02:19,239 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:02:19,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3b-join.i [2024-10-11 17:02:20,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:02:21,182 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:02:21,183 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3b-join.i [2024-10-11 17:02:21,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e6ecfdfec/25446873e32847b9b7f2cca3e5fd3672/FLAG1c01c13fd [2024-10-11 17:02:21,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e6ecfdfec/25446873e32847b9b7f2cca3e5fd3672 [2024-10-11 17:02:21,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:02:21,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:02:21,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:02:21,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:02:21,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:02:21,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:02:21" (1/1) ... [2024-10-11 17:02:21,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259ccd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:21, skipping insertion in model container [2024-10-11 17:02:21,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:02:21" (1/1) ... [2024-10-11 17:02:21,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:02:21,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:02:21,939 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:02:22,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:02:22,211 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:02:22,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22 WrapperNode [2024-10-11 17:02:22,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:02:22,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:02:22,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:02:22,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:02:22,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,291 INFO L138 Inliner]: procedures = 481, calls = 25, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 119 [2024-10-11 17:02:22,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:02:22,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:02:22,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:02:22,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:02:22,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:02:22,338 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:02:22,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:02:22,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:02:22,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (1/1) ... [2024-10-11 17:02:22,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:02:22,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:02:22,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:02:22,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:02:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:02:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:02:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:02:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:02:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:02:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:02:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:02:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:02:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 17:02:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 17:02:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:02:22,427 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:02:22,706 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:02:22,708 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:02:22,890 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:02:22,890 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:02:22,912 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:02:22,913 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:02:22,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:02:22 BoogieIcfgContainer [2024-10-11 17:02:22,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:02:22,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:02:22,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:02:22,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:02:22,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:02:21" (1/3) ... [2024-10-11 17:02:22,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec80f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:02:22, skipping insertion in model container [2024-10-11 17:02:22,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:02:22" (2/3) ... [2024-10-11 17:02:22,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec80f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:02:22, skipping insertion in model container [2024-10-11 17:02:22,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:02:22" (3/3) ... [2024-10-11 17:02:22,930 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2024-10-11 17:02:22,950 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:02:22,950 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-10-11 17:02:22,951 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:02:23,026 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:02:23,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 163 transitions, 333 flow [2024-10-11 17:02:23,153 INFO L124 PetriNetUnfolderBase]: 11/200 cut-off events. [2024-10-11 17:02:23,153 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:02:23,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 200 events. 11/200 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 332 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2024-10-11 17:02:23,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 163 transitions, 333 flow [2024-10-11 17:02:23,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 145 transitions, 296 flow [2024-10-11 17:02:23,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:02:23,194 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;@542e08f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:02:23,194 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-11 17:02:23,203 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:02:23,203 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-11 17:02:23,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:02:23,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:02:23,205 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] [2024-10-11 17:02:23,205 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-11 17:02:23,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:02:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1862016540, now seen corresponding path program 1 times [2024-10-11 17:02:23,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:02:23,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557313646] [2024-10-11 17:02:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:02:23,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:02:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:02:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:02:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:02:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557313646] [2024-10-11 17:02:23,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557313646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:02:23,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:02:23,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:02:23,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025039697] [2024-10-11 17:02:23,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:02:23,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:02:23,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:02:23,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:02:23,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:02:23,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-10-11 17:02:23,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 145 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2024-10-11 17:02:23,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:02:23,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-10-11 17:02:23,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:02:23,809 INFO L124 PetriNetUnfolderBase]: 9/211 cut-off events. [2024-10-11 17:02:23,809 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:02:23,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 211 events. 9/211 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 574 event pairs, 9 based on Foata normal form. 10/195 useless extension candidates. Maximal degree in co-relation 120. Up to 38 conditions per place. [2024-10-11 17:02:23,812 INFO L140 encePairwiseOnDemand]: 154/163 looper letters, 16 selfloop transitions, 2 changer transitions 6/132 dead transitions. [2024-10-11 17:02:23,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 306 flow [2024-10-11 17:02:23,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:02:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:02:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2024-10-11 17:02:23,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8609406952965235 [2024-10-11 17:02:23,831 INFO L175 Difference]: Start difference. First operand has 142 places, 145 transitions, 296 flow. Second operand 3 states and 421 transitions. [2024-10-11 17:02:23,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 306 flow [2024-10-11 17:02:23,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 132 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:02:23,839 INFO L231 Difference]: Finished difference. Result has 135 places, 126 transitions, 258 flow [2024-10-11 17:02:23,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=135, PETRI_TRANSITIONS=126} [2024-10-11 17:02:23,849 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -7 predicate places. [2024-10-11 17:02:23,849 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 126 transitions, 258 flow [2024-10-11 17:02:23,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2024-10-11 17:02:23,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:02:23,850 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] [2024-10-11 17:02:23,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:02:23,851 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-11 17:02:23,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:02:23,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1831768595, now seen corresponding path program 1 times [2024-10-11 17:02:23,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:02:23,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827801184] [2024-10-11 17:02:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:02:23,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:02:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:02:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:02:23,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:02:23,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827801184] [2024-10-11 17:02:23,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827801184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:02:23,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:02:23,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:02:23,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667469149] [2024-10-11 17:02:23,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:02:23,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:02:23,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:02:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:02:23,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:02:24,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 163 [2024-10-11 17:02:24,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2024-10-11 17:02:24,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:02:24,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 163 [2024-10-11 17:02:24,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:02:24,110 INFO L124 PetriNetUnfolderBase]: 11/246 cut-off events. [2024-10-11 17:02:24,111 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 17:02:24,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 246 events. 11/246 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 738 event pairs, 4 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 267. Up to 24 conditions per place. [2024-10-11 17:02:24,113 INFO L140 encePairwiseOnDemand]: 150/163 looper letters, 15 selfloop transitions, 8 changer transitions 3/130 dead transitions. [2024-10-11 17:02:24,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 130 transitions, 315 flow [2024-10-11 17:02:24,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:02:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:02:24,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2024-10-11 17:02:24,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8548057259713702 [2024-10-11 17:02:24,117 INFO L175 Difference]: Start difference. First operand has 135 places, 126 transitions, 258 flow. Second operand 3 states and 418 transitions. [2024-10-11 17:02:24,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 130 transitions, 315 flow [2024-10-11 17:02:24,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 130 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:02:24,121 INFO L231 Difference]: Finished difference. Result has 128 places, 124 transitions, 292 flow [2024-10-11 17:02:24,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=128, PETRI_TRANSITIONS=124} [2024-10-11 17:02:24,123 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -14 predicate places. [2024-10-11 17:02:24,123 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 124 transitions, 292 flow [2024-10-11 17:02:24,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2024-10-11 17:02:24,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:02:24,124 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] [2024-10-11 17:02:24,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:02:24,124 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-11 17:02:24,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:02:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash 768850896, now seen corresponding path program 1 times [2024-10-11 17:02:24,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:02:24,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043448082] [2024-10-11 17:02:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:02:24,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:02:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:02:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:02:24,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:02:24,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043448082] [2024-10-11 17:02:24,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043448082] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:02:24,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:02:24,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:02:24,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173568338] [2024-10-11 17:02:24,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:02:24,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:02:24,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:02:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:02:24,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:02:24,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-10-11 17:02:24,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 124 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2024-10-11 17:02:24,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:02:24,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-10-11 17:02:24,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:02:24,406 INFO L124 PetriNetUnfolderBase]: 10/239 cut-off events. [2024-10-11 17:02:24,406 INFO L125 PetriNetUnfolderBase]: For 49/52 co-relation queries the response was YES. [2024-10-11 17:02:24,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 239 events. 10/239 cut-off events. For 49/52 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 745 event pairs, 7 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 59. Up to 42 conditions per place. [2024-10-11 17:02:24,411 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 18 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2024-10-11 17:02:24,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 123 transitions, 330 flow [2024-10-11 17:02:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:02:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:02:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2024-10-11 17:02:24,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8466257668711656 [2024-10-11 17:02:24,414 INFO L175 Difference]: Start difference. First operand has 128 places, 124 transitions, 292 flow. Second operand 3 states and 414 transitions. [2024-10-11 17:02:24,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 123 transitions, 330 flow [2024-10-11 17:02:24,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 123 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:02:24,421 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 278 flow [2024-10-11 17:02:24,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2024-10-11 17:02:24,423 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -18 predicate places. [2024-10-11 17:02:24,423 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 278 flow [2024-10-11 17:02:24,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2024-10-11 17:02:24,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:02:24,425 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:02:24,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:02:24,425 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-11 17:02:24,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:02:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash 244082582, now seen corresponding path program 1 times [2024-10-11 17:02:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:02:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068780640] [2024-10-11 17:02:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:02:24,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:02:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:02:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:02:24,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:02:24,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068780640] [2024-10-11 17:02:24,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068780640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:02:24,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:02:24,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:02:24,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218177165] [2024-10-11 17:02:24,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:02:24,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:02:24,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:02:24,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:02:24,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:02:24,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 163 [2024-10-11 17:02:24,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2024-10-11 17:02:24,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:02:24,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 163 [2024-10-11 17:02:24,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:02:24,571 INFO L124 PetriNetUnfolderBase]: 11/278 cut-off events. [2024-10-11 17:02:24,572 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 17:02:24,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 278 events. 11/278 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 976 event pairs, 3 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 285. Up to 28 conditions per place. [2024-10-11 17:02:24,576 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 11 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-10-11 17:02:24,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 124 transitions, 306 flow [2024-10-11 17:02:24,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:02:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:02:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2024-10-11 17:02:24,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8813905930470347 [2024-10-11 17:02:24,578 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 278 flow. Second operand 3 states and 431 transitions. [2024-10-11 17:02:24,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 124 transitions, 306 flow [2024-10-11 17:02:24,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 124 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:02:24,584 INFO L231 Difference]: Finished difference. Result has 123 places, 122 transitions, 276 flow [2024-10-11 17:02:24,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=121, 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=276, PETRI_PLACES=123, PETRI_TRANSITIONS=122} [2024-10-11 17:02:24,588 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -19 predicate places. [2024-10-11 17:02:24,588 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 122 transitions, 276 flow [2024-10-11 17:02:24,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2024-10-11 17:02:24,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:02:24,589 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] [2024-10-11 17:02:24,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:02:24,589 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-11 17:02:24,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:02:24,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1587300180, now seen corresponding path program 1 times [2024-10-11 17:02:24,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:02:24,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837103753] [2024-10-11 17:02:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:02:24,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:02:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:02:24,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:02:24,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:02:24,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837103753] [2024-10-11 17:02:24,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837103753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:02:24,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:02:24,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:02:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361807878] [2024-10-11 17:02:24,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:02:24,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:02:24,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:02:24,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:02:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:02:24,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 163 [2024-10-11 17:02:24,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2024-10-11 17:02:24,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:02:24,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 163 [2024-10-11 17:02:24,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:02:24,759 INFO L124 PetriNetUnfolderBase]: 16/273 cut-off events. [2024-10-11 17:02:24,759 INFO L125 PetriNetUnfolderBase]: For 26/37 co-relation queries the response was YES. [2024-10-11 17:02:24,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 273 events. 16/273 cut-off events. For 26/37 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1042 event pairs, 7 based on Foata normal form. 2/244 useless extension candidates. Maximal degree in co-relation 259. Up to 50 conditions per place. [2024-10-11 17:02:24,761 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 17 selfloop transitions, 6 changer transitions 6/126 dead transitions. [2024-10-11 17:02:24,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 126 transitions, 334 flow [2024-10-11 17:02:24,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:02:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:02:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2024-10-11 17:02:24,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8650306748466258 [2024-10-11 17:02:24,763 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 276 flow. Second operand 3 states and 423 transitions. [2024-10-11 17:02:24,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 126 transitions, 334 flow [2024-10-11 17:02:24,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 126 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:02:24,767 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 306 flow [2024-10-11 17:02:24,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2024-10-11 17:02:24,768 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -17 predicate places. [2024-10-11 17:02:24,768 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 306 flow [2024-10-11 17:02:24,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2024-10-11 17:02:24,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:02:24,769 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] [2024-10-11 17:02:24,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:02:24,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-11 17:02:24,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:02:24,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2036293428, now seen corresponding path program 1 times [2024-10-11 17:02:24,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:02:24,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231367301] [2024-10-11 17:02:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:02:24,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:02:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:02:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:02:24,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:02:24,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231367301] [2024-10-11 17:02:24,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231367301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:02:24,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:02:24,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:02:24,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858197906] [2024-10-11 17:02:24,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:02:24,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:02:24,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:02:24,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:02:24,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:02:24,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-10-11 17:02:24,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2024-10-11 17:02:24,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:02:24,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-10-11 17:02:24,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:02:24,965 INFO L124 PetriNetUnfolderBase]: 31/329 cut-off events. [2024-10-11 17:02:24,966 INFO L125 PetriNetUnfolderBase]: For 85/89 co-relation queries the response was YES. [2024-10-11 17:02:24,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 329 events. 31/329 cut-off events. For 85/89 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1402 event pairs, 12 based on Foata normal form. 2/304 useless extension candidates. Maximal degree in co-relation 198. Up to 67 conditions per place. [2024-10-11 17:02:24,970 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 21 selfloop transitions, 6 changer transitions 0/125 dead transitions. [2024-10-11 17:02:24,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 125 transitions, 376 flow [2024-10-11 17:02:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:02:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:02:24,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 419 transitions. [2024-10-11 17:02:24,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8568507157464212 [2024-10-11 17:02:24,972 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 306 flow. Second operand 3 states and 419 transitions. [2024-10-11 17:02:24,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 125 transitions, 376 flow [2024-10-11 17:02:24,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 125 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:02:24,977 INFO L231 Difference]: Finished difference. Result has 121 places, 123 transitions, 336 flow [2024-10-11 17:02:24,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=121, PETRI_TRANSITIONS=123} [2024-10-11 17:02:24,979 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -21 predicate places. [2024-10-11 17:02:24,980 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 123 transitions, 336 flow [2024-10-11 17:02:24,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2024-10-11 17:02:24,980 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:02:24,981 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] [2024-10-11 17:02:24,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:02:24,981 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-11 17:02:24,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:02:24,982 INFO L85 PathProgramCache]: Analyzing trace with hash 100989333, now seen corresponding path program 1 times [2024-10-11 17:02:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:02:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299055944] [2024-10-11 17:02:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:02:24,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:02:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:02:25,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:02:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:02:25,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:02:25,092 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:02:25,093 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2024-10-11 17:02:25,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-10-11 17:02:25,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-10-11 17:02:25,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-10-11 17:02:25,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-10-11 17:02:25,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-10-11 17:02:25,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-10-11 17:02:25,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-10-11 17:02:25,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-10-11 17:02:25,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-10-11 17:02:25,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-10-11 17:02:25,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-10-11 17:02:25,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 13 remaining) [2024-10-11 17:02:25,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:02:25,102 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:02:25,156 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:02:25,156 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:02:25,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:02:25 BasicIcfg [2024-10-11 17:02:25,165 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:02:25,165 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:02:25,166 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:02:25,166 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:02:25,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:02:22" (3/4) ... [2024-10-11 17:02:25,168 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 17:02:25,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:02:25,170 INFO L158 Benchmark]: Toolchain (without parser) took 3943.26ms. Allocated memory was 167.8MB in the beginning and 239.1MB in the end (delta: 71.3MB). Free memory was 108.2MB in the beginning and 186.8MB in the end (delta: -78.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:02:25,170 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:02:25,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 983.85ms. Allocated memory was 167.8MB in the beginning and 239.1MB in the end (delta: 71.3MB). Free memory was 108.2MB in the beginning and 185.6MB in the end (delta: -77.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-10-11 17:02:25,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.56ms. Allocated memory is still 239.1MB. Free memory was 185.6MB in the beginning and 182.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:02:25,171 INFO L158 Benchmark]: Boogie Preprocessor took 44.11ms. Allocated memory is still 239.1MB. Free memory was 182.7MB in the beginning and 179.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:02:25,171 INFO L158 Benchmark]: RCFGBuilder took 575.75ms. Allocated memory is still 239.1MB. Free memory was 179.6MB in the beginning and 156.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 17:02:25,172 INFO L158 Benchmark]: TraceAbstraction took 2245.05ms. Allocated memory is still 239.1MB. Free memory was 155.5MB in the beginning and 187.8MB in the end (delta: -32.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:02:25,172 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 239.1MB. Free memory was 187.8MB in the beginning and 186.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:02:25,176 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 983.85ms. Allocated memory was 167.8MB in the beginning and 239.1MB in the end (delta: 71.3MB). Free memory was 108.2MB in the beginning and 185.6MB in the end (delta: -77.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.56ms. Allocated memory is still 239.1MB. Free memory was 185.6MB in the beginning and 182.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.11ms. Allocated memory is still 239.1MB. Free memory was 182.7MB in the beginning and 179.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.75ms. Allocated memory is still 239.1MB. Free memory was 179.6MB in the beginning and 156.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2245.05ms. Allocated memory is still 239.1MB. Free memory was 155.5MB in the beginning and 187.8MB in the end (delta: -32.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 239.1MB. Free memory was 187.8MB in the beginning and 186.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1=0] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1=0] [L1696] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1=0] [L1726] CALL, EXPR 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1=0] [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1=0] [L1708] 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [mutex={3:0}, pdev=1, t1=-1] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1709] 0 return 0; VAL [\old(arg)={0:0}, \result=0, arg={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1726] RET, EXPR 0 module_init() [L1726] COND FALSE 0 !(module_init()!=0) VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1727] CALL 0 module_exit() [L1717] 0 void *status; VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=1, status={5:0}, t1=-1] [L1718] 0 pdev = 4 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=4, status={5:0}, t1=-1] [L1699] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1718] 0 pdev = 4 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, status={5:0}, t1=-1] [L1699] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] Now there is a data race on ~pdev~0 between C: pdev = 4 [1718] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 169 locations, 13 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: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 314 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 17 mSDtfsCounter, 292 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=336occurred in iteration=6, 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, 0.6s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 251 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-11 17:02:25,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE