/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:01:51,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:01:51,595 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 04:01:51,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:01:51,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:01:51,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:01:51,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:01:51,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:01:51,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:01:51,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:01:51,648 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:01:51,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:01:51,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:01:51,649 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:01:51,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:01:51,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:01:51,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:01:51,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:01:51,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:01:51,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:01:51,651 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:01:51,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:01:51,656 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:01:51,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:01:51,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:01:51,659 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:01:51,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:01:51,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:01:51,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:01:51,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:01:51,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:01:51,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:01:51,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:01:51,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:01:51,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:01:51,662 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:01:52,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:01:52,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:01:52,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:01:52,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:01:52,039 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:01:52,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-08-25 04:01:53,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:01:53,504 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:01:53,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-08-25 04:01:53,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca27ca22/f3a1394ce0cb46ba837a67f325b683b1/FLAGc11320f66 [2023-08-25 04:01:53,540 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca27ca22/f3a1394ce0cb46ba837a67f325b683b1 [2023-08-25 04:01:53,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:01:53,543 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:01:53,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:01:53,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:01:53,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:01:53,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:01:53" (1/1) ... [2023-08-25 04:01:53,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6268d151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:53, skipping insertion in model container [2023-08-25 04:01:53,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:01:53" (1/1) ... [2023-08-25 04:01:53,599 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:01:53,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:01:53,980 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:01:54,005 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:01:54,012 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:01:54,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:01:54,081 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:01:54,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54 WrapperNode [2023-08-25 04:01:54,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:01:54,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:01:54,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:01:54,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:01:54,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,167 INFO L138 Inliner]: procedures = 172, calls = 53, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 298 [2023-08-25 04:01:54,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:01:54,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:01:54,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:01:54,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:01:54,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:01:54,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:01:54,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:01:54,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:01:54,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (1/1) ... [2023-08-25 04:01:54,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:01:54,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:01:54,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 04:01:54,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 04:01:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:01:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-25 04:01:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-25 04:01:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:01:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 04:01:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:01:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:01:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-25 04:01:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-25 04:01:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:01:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:01:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:01:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:01:54,322 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 04:01:54,488 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:01:54,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:01:54,948 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:01:54,955 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:01:54,956 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-25 04:01:54,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:01:54 BoogieIcfgContainer [2023-08-25 04:01:54,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:01:54,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:01:54,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:01:54,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:01:54,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:01:53" (1/3) ... [2023-08-25 04:01:54,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:01:54, skipping insertion in model container [2023-08-25 04:01:54,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:01:54" (2/3) ... [2023-08-25 04:01:54,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:01:54, skipping insertion in model container [2023-08-25 04:01:54,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:01:54" (3/3) ... [2023-08-25 04:01:54,965 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2023-08-25 04:01:54,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:01:54,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-25 04:01:54,981 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:01:55,066 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 04:01:55,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 309 transitions, 640 flow [2023-08-25 04:01:55,271 INFO L124 PetriNetUnfolderBase]: 61/558 cut-off events. [2023-08-25 04:01:55,271 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 04:01:55,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 558 events. 61/558 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2850 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 310. Up to 8 conditions per place. [2023-08-25 04:01:55,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 309 transitions, 640 flow [2023-08-25 04:01:55,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 280 places, 309 transitions, 640 flow [2023-08-25 04:01:55,306 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:01:55,319 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 309 transitions, 640 flow [2023-08-25 04:01:55,325 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 309 transitions, 640 flow [2023-08-25 04:01:55,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 309 transitions, 640 flow [2023-08-25 04:01:55,445 INFO L124 PetriNetUnfolderBase]: 61/558 cut-off events. [2023-08-25 04:01:55,445 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 04:01:55,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 558 events. 61/558 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2850 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 310. Up to 8 conditions per place. [2023-08-25 04:01:55,487 INFO L119 LiptonReduction]: Number of co-enabled transitions 44154 [2023-08-25 04:02:00,308 INFO L134 LiptonReduction]: Checked pairs total: 165684 [2023-08-25 04:02:00,309 INFO L136 LiptonReduction]: Total number of compositions: 191 [2023-08-25 04:02:00,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:02:00,326 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@da9038d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:02:00,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-25 04:02:00,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:02:00,332 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2023-08-25 04:02:00,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:02:00,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:02:00,333 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 04:02:00,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONASSERT (and 24 more)] === [2023-08-25 04:02:00,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:02:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash 231367459, now seen corresponding path program 1 times [2023-08-25 04:02:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:02:00,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272518786] [2023-08-25 04:02:00,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:02:00,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:02:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:02:00,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:02:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:02:00,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:02:00,543 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:02:00,544 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2023-08-25 04:02:00,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2023-08-25 04:02:00,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2023-08-25 04:02:00,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2023-08-25 04:02:00,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONASSERT (23 of 28 remaining) [2023-08-25 04:02:00,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2023-08-25 04:02:00,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2023-08-25 04:02:00,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2023-08-25 04:02:00,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2023-08-25 04:02:00,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 28 remaining) [2023-08-25 04:02:00,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2023-08-25 04:02:00,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2023-08-25 04:02:00,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2023-08-25 04:02:00,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONASSERT (14 of 28 remaining) [2023-08-25 04:02:00,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2023-08-25 04:02:00,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2023-08-25 04:02:00,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2023-08-25 04:02:00,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2023-08-25 04:02:00,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2023-08-25 04:02:00,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONASSERT (8 of 28 remaining) [2023-08-25 04:02:00,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2023-08-25 04:02:00,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2023-08-25 04:02:00,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2023-08-25 04:02:00,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2023-08-25 04:02:00,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2023-08-25 04:02:00,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONASSERT (2 of 28 remaining) [2023-08-25 04:02:00,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2023-08-25 04:02:00,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2023-08-25 04:02:00,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:02:00,553 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 04:02:00,557 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:02:00,557 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 04:02:00,684 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-25 04:02:00,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 513 transitions, 1074 flow [2023-08-25 04:02:01,104 INFO L124 PetriNetUnfolderBase]: 205/1645 cut-off events. [2023-08-25 04:02:01,105 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-25 04:02:01,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1645 events. 205/1645 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11621 event pairs, 1 based on Foata normal form. 0/1373 useless extension candidates. Maximal degree in co-relation 991. Up to 32 conditions per place. [2023-08-25 04:02:01,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 513 transitions, 1074 flow [2023-08-25 04:02:01,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 458 places, 513 transitions, 1074 flow [2023-08-25 04:02:01,201 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:02:01,201 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 458 places, 513 transitions, 1074 flow [2023-08-25 04:02:01,202 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 458 places, 513 transitions, 1074 flow [2023-08-25 04:02:01,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 513 transitions, 1074 flow [2023-08-25 04:02:01,648 INFO L124 PetriNetUnfolderBase]: 205/1645 cut-off events. [2023-08-25 04:02:01,648 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-25 04:02:01,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1645 events. 205/1645 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11621 event pairs, 1 based on Foata normal form. 0/1373 useless extension candidates. Maximal degree in co-relation 991. Up to 32 conditions per place. [2023-08-25 04:02:01,817 INFO L119 LiptonReduction]: Number of co-enabled transitions 170676 [2023-08-25 04:02:07,785 INFO L134 LiptonReduction]: Checked pairs total: 703765 [2023-08-25 04:02:07,785 INFO L136 LiptonReduction]: Total number of compositions: 305 [2023-08-25 04:02:07,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:02:07,788 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@da9038d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:02:07,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-25 04:02:07,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:02:07,795 INFO L124 PetriNetUnfolderBase]: 10/83 cut-off events. [2023-08-25 04:02:07,795 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 04:02:07,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:02:07,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:02:07,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONASSERT (and 36 more)] === [2023-08-25 04:02:07,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:02:07,796 INFO L85 PathProgramCache]: Analyzing trace with hash 968813608, now seen corresponding path program 1 times [2023-08-25 04:02:07,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:02:07,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440894385] [2023-08-25 04:02:07,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:02:07,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:02:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:02:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:02:07,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:02:07,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440894385] [2023-08-25 04:02:07,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440894385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:02:07,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:02:07,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:02:07,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331581897] [2023-08-25 04:02:07,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:02:07,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:02:07,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:02:07,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:02:07,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:02:07,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 818 [2023-08-25 04:02:07,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 278 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 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) [2023-08-25 04:02:07,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:02:07,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 818 [2023-08-25 04:02:07,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand