./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/goblint-regression/28-race_reach_09-ptrmunge_racing.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/goblint-regression/28-race_reach_09-ptrmunge_racing.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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:10:00,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:10:00,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:10:00,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:10:00,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:10:00,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:10:00,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:10:00,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:10:00,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:10:00,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:10:00,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:10:00,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:10:00,298 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:10:00,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:10:00,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:10:00,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:10:00,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:10:00,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:10:00,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:10:00,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:10:00,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:10:00,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:10:00,305 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:10:00,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:10:00,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:10:00,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:10:00,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:10:00,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:10:00,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:10:00,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:10:00,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:10:00,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:10:00,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:10:00,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:10:00,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:10:00,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:10:00,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:10:00,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:10:00,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:10:00,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:10:00,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:10:00,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2024-10-11 17:10:00,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:10:00,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:10:00,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:10:00,614 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:10:00,615 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:10:00,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-10-11 17:10:02,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:10:02,392 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:10:02,392 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-10-11 17:10:02,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2500453e3/133f93be3c634bacb713000a09ca9658/FLAGcb2114ea6 [2024-10-11 17:10:02,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2500453e3/133f93be3c634bacb713000a09ca9658 [2024-10-11 17:10:02,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:10:02,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:10:02,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:10:02,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:10:02,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:10:02,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:02" (1/1) ... [2024-10-11 17:10:02,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383ec58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:02, skipping insertion in model container [2024-10-11 17:10:02,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:10:02" (1/1) ... [2024-10-11 17:10:02,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:10:03,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:10:03,211 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:10:03,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:10:03,322 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:10:03,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03 WrapperNode [2024-10-11 17:10:03,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:10:03,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:10:03,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:10:03,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:10:03,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,408 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 323 [2024-10-11 17:10:03,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:10:03,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:10:03,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:10:03,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:10:03,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:10:03,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:10:03,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:10:03,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:10:03,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (1/1) ... [2024-10-11 17:10:03,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:10:03,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:10:03,554 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 17:10:03,561 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 17:10:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:10:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-11 17:10:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-11 17:10:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:10:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:10:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:10:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:10:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-11 17:10:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-11 17:10:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:10:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:10:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:10:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:10:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:10:03,638 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 17:10:03,808 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:10:03,810 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:10:04,397 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:10:04,397 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:10:04,454 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:10:04,456 INFO L314 CfgBuilder]: Removed 24 assume(true) statements. [2024-10-11 17:10:04,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:04 BoogieIcfgContainer [2024-10-11 17:10:04,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:10:04,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:10:04,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:10:04,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:10:04,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:10:02" (1/3) ... [2024-10-11 17:10:04,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea5c6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:04, skipping insertion in model container [2024-10-11 17:10:04,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:10:03" (2/3) ... [2024-10-11 17:10:04,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea5c6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:10:04, skipping insertion in model container [2024-10-11 17:10:04,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:10:04" (3/3) ... [2024-10-11 17:10:04,471 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2024-10-11 17:10:04,489 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:10:04,489 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-11 17:10:04,490 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:10:04,625 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 17:10:04,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 329 transitions, 678 flow [2024-10-11 17:10:04,877 INFO L124 PetriNetUnfolderBase]: 61/610 cut-off events. [2024-10-11 17:10:04,878 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 17:10:04,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 610 events. 61/610 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3146 event pairs, 0 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 340. Up to 8 conditions per place. [2024-10-11 17:10:04,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 329 transitions, 678 flow [2024-10-11 17:10:04,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 329 transitions, 678 flow [2024-10-11 17:10:04,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:10:04,940 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;@7dc4b786, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:10:04,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-11 17:10:04,952 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:10:04,952 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2024-10-11 17:10:04,953 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:10:04,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:04,954 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:04,954 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:10:04,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:04,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1870488992, now seen corresponding path program 1 times [2024-10-11 17:10:04,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:04,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704595701] [2024-10-11 17:10:04,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:04,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:06,008 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 17:10:06,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:06,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704595701] [2024-10-11 17:10:06,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704595701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:06,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:06,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:10:06,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614868546] [2024-10-11 17:10:06,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:06,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:10:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:06,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:10:06,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:10:06,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 329 [2024-10-11 17:10:06,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 329 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 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 17:10:06,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:06,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 329 [2024-10-11 17:10:06,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:15,654 INFO L124 PetriNetUnfolderBase]: 25883/66270 cut-off events. [2024-10-11 17:10:15,654 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2024-10-11 17:10:15,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105965 conditions, 66270 events. 25883/66270 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 817743 event pairs, 23170 based on Foata normal form. 11017/72756 useless extension candidates. Maximal degree in co-relation 102576. Up to 39291 conditions per place. [2024-10-11 17:10:16,274 INFO L140 encePairwiseOnDemand]: 274/329 looper letters, 119 selfloop transitions, 86 changer transitions 0/414 dead transitions. [2024-10-11 17:10:16,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 414 transitions, 1258 flow [2024-10-11 17:10:16,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:10:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:10:16,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1548 transitions. [2024-10-11 17:10:16,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.78419452887538 [2024-10-11 17:10:16,302 INFO L175 Difference]: Start difference. First operand has 300 places, 329 transitions, 678 flow. Second operand 6 states and 1548 transitions. [2024-10-11 17:10:16,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 414 transitions, 1258 flow [2024-10-11 17:10:16,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 414 transitions, 1258 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:10:16,327 INFO L231 Difference]: Finished difference. Result has 306 places, 382 transitions, 1180 flow [2024-10-11 17:10:16,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1180, PETRI_PLACES=306, PETRI_TRANSITIONS=382} [2024-10-11 17:10:16,336 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 6 predicate places. [2024-10-11 17:10:16,336 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 382 transitions, 1180 flow [2024-10-11 17:10:16,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 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 17:10:16,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:16,339 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] [2024-10-11 17:10:16,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:10:16,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:10:16,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:16,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1797419805, now seen corresponding path program 1 times [2024-10-11 17:10:16,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:16,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394428995] [2024-10-11 17:10:16,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:16,411 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 17:10:16,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:16,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394428995] [2024-10-11 17:10:16,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394428995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:16,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:16,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:10:16,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128322630] [2024-10-11 17:10:16,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:16,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:10:16,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:16,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:10:16,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:10:16,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 329 [2024-10-11 17:10:16,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 382 transitions, 1180 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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 17:10:16,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:16,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 329 [2024-10-11 17:10:16,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:16,981 INFO L124 PetriNetUnfolderBase]: 504/4050 cut-off events. [2024-10-11 17:10:16,981 INFO L125 PetriNetUnfolderBase]: For 274/296 co-relation queries the response was YES. [2024-10-11 17:10:16,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5334 conditions, 4050 events. 504/4050 cut-off events. For 274/296 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 38535 event pairs, 280 based on Foata normal form. 1/3690 useless extension candidates. Maximal degree in co-relation 4805. Up to 565 conditions per place. [2024-10-11 17:10:17,014 INFO L140 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 3 changer transitions 0/390 dead transitions. [2024-10-11 17:10:17,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 390 transitions, 1270 flow [2024-10-11 17:10:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:10:17,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:10:17,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2024-10-11 17:10:17,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8611955420466059 [2024-10-11 17:10:17,018 INFO L175 Difference]: Start difference. First operand has 306 places, 382 transitions, 1180 flow. Second operand 3 states and 850 transitions. [2024-10-11 17:10:17,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 390 transitions, 1270 flow [2024-10-11 17:10:17,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 390 transitions, 1270 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:10:17,030 INFO L231 Difference]: Finished difference. Result has 309 places, 382 transitions, 1191 flow [2024-10-11 17:10:17,031 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1191, PETRI_PLACES=309, PETRI_TRANSITIONS=382} [2024-10-11 17:10:17,032 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 9 predicate places. [2024-10-11 17:10:17,032 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 382 transitions, 1191 flow [2024-10-11 17:10:17,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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 17:10:17,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:17,033 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:17,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:10:17,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:10:17,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash -987438390, now seen corresponding path program 1 times [2024-10-11 17:10:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:17,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056123198] [2024-10-11 17:10:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:17,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:10:17,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:10:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:10:17,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:10:17,115 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:10:17,116 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-10-11 17:10:17,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-10-11 17:10:17,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-10-11 17:10:17,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-10-11 17:10:17,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-10-11 17:10:17,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-10-11 17:10:17,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-10-11 17:10:17,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-10-11 17:10:17,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-10-11 17:10:17,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-10-11 17:10:17,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-10-11 17:10:17,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-10-11 17:10:17,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-10-11 17:10:17,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-10-11 17:10:17,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-10-11 17:10:17,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-10-11 17:10:17,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-10-11 17:10:17,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-10-11 17:10:17,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-10-11 17:10:17,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-10-11 17:10:17,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-10-11 17:10:17,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-10-11 17:10:17,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-10-11 17:10:17,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-10-11 17:10:17,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-10-11 17:10:17,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-10-11 17:10:17,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:10:17,126 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 17:10:17,130 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:10:17,130 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 17:10:17,242 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-11 17:10:17,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 492 places, 547 transitions, 1138 flow [2024-10-11 17:10:17,730 INFO L124 PetriNetUnfolderBase]: 205/1752 cut-off events. [2024-10-11 17:10:17,730 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-11 17:10:17,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1841 conditions, 1752 events. 205/1752 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 12043 event pairs, 1 based on Foata normal form. 0/1476 useless extension candidates. Maximal degree in co-relation 1061. Up to 32 conditions per place. [2024-10-11 17:10:17,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 492 places, 547 transitions, 1138 flow [2024-10-11 17:10:17,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 492 places, 547 transitions, 1138 flow [2024-10-11 17:10:17,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:10:17,792 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;@7dc4b786, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:10:17,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-10-11 17:10:17,800 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:10:17,800 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2024-10-11 17:10:17,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:10:17,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:17,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:17,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-11 17:10:17,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:17,805 INFO L85 PathProgramCache]: Analyzing trace with hash 970183105, now seen corresponding path program 1 times [2024-10-11 17:10:17,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:17,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415411359] [2024-10-11 17:10:17,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:17,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:18,146 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 17:10:18,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:18,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415411359] [2024-10-11 17:10:18,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415411359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:18,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:18,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:10:18,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495388819] [2024-10-11 17:10:18,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:18,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:10:18,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:18,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:10:18,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:10:18,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 547 [2024-10-11 17:10:18,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 547 transitions, 1138 flow. Second operand has 6 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 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 17:10:18,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:18,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 547 [2024-10-11 17:10:18,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand