/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 12:02:05,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 12:02:05,655 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-NoLbe.epf [2023-11-10 12:02:05,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 12:02:05,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 12:02:05,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 12:02:05,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 12:02:05,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 12:02:05,682 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 12:02:05,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 12:02:05,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 12:02:05,683 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 12:02:05,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 12:02:05,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 12:02:05,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 12:02:05,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 12:02:05,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 12:02:05,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 12:02:05,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 12:02:05,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 12:02:05,686 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 12:02:05,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 12:02:05,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 12:02:05,687 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 12:02:05,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 12:02:05,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:02:05,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 12:02:05,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 12:02:05,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 12:02:05,689 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 12:02:05,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 12:02:05,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 12:02:05,689 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 12:02:05,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 12:02:05,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 12:02:05,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 12:02:05,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 12:02:05,972 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 12:02:05,972 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 12:02:05,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-11-10 12:02:07,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 12:02:07,557 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 12:02:07,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-11-10 12:02:07,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23cf54c23/29b1a535e0a84473bd7d45ff69afdfb3/FLAGcd7faeec7 [2023-11-10 12:02:07,603 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23cf54c23/29b1a535e0a84473bd7d45ff69afdfb3 [2023-11-10 12:02:07,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 12:02:07,611 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 12:02:07,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 12:02:07,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 12:02:07,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 12:02:07,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc4419c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07, skipping insertion in model container [2023-11-10 12:02:07,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 12:02:08,116 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-11-10 12:02:08,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:02:08,175 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 12:02:08,204 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-11-10 12:02:08,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:02:08,270 INFO L206 MainTranslator]: Completed translation [2023-11-10 12:02:08,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08 WrapperNode [2023-11-10 12:02:08,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 12:02:08,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 12:02:08,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 12:02:08,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 12:02:08,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,338 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 389 [2023-11-10 12:02:08,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 12:02:08,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 12:02:08,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 12:02:08,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 12:02:08,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 12:02:08,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 12:02:08,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 12:02:08,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 12:02:08,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (1/1) ... [2023-11-10 12:02:08,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:02:08,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:02:08,414 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) [2023-11-10 12:02:08,429 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 [2023-11-10 12:02:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 12:02:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-10 12:02:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-10 12:02:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-10 12:02:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 12:02:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 12:02:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-10 12:02:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-10 12:02:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 12:02:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 12:02:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 12:02:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 12:02:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-10 12:02:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-11-10 12:02:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-11-10 12:02:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 12:02:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 12:02:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 12:02:08,470 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 12:02:08,625 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 12:02:08,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 12:02:09,229 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 12:02:09,240 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 12:02:09,240 INFO L302 CfgBuilder]: Removed 29 assume(true) statements. [2023-11-10 12:02:09,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:02:09 BoogieIcfgContainer [2023-11-10 12:02:09,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 12:02:09,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 12:02:09,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 12:02:09,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 12:02:09,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:02:07" (1/3) ... [2023-11-10 12:02:09,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ae4f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:09, skipping insertion in model container [2023-11-10 12:02:09,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:08" (2/3) ... [2023-11-10 12:02:09,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ae4f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:09, skipping insertion in model container [2023-11-10 12:02:09,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:02:09" (3/3) ... [2023-11-10 12:02:09,261 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2023-11-10 12:02:09,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 12:02:09,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 12:02:09,279 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 12:02:09,449 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-11-10 12:02:09,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 376 places, 417 transitions, 873 flow [2023-11-10 12:02:10,029 INFO L124 PetriNetUnfolderBase]: 188/1522 cut-off events. [2023-11-10 12:02:10,030 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-10 12:02:10,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 1522 events. 188/1522 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10089 event pairs, 0 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 778. Up to 16 conditions per place. [2023-11-10 12:02:10,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 376 places, 417 transitions, 873 flow [2023-11-10 12:02:10,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 376 places, 417 transitions, 873 flow [2023-11-10 12:02:10,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:02:10,110 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=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;@d4f7fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:02:10,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 12:02:10,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:02:10,133 INFO L124 PetriNetUnfolderBase]: 6/134 cut-off events. [2023-11-10 12:02:10,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 12:02:10,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:02:10,135 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:02:10,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 12:02:10,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:02:10,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1800087310, now seen corresponding path program 1 times [2023-11-10 12:02:10,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:02:10,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621990545] [2023-11-10 12:02:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:02:10,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:02:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:10,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 12:02:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:10,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 12:02:10,532 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 12:02:10,533 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-11-10 12:02:10,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-10 12:02:10,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-10 12:02:10,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-10 12:02:10,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-10 12:02:10,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-10 12:02:10,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-10 12:02:10,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 12:02:10,539 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 12:02:10,544 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 12:02:10,545 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-10 12:02:10,685 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-10 12:02:10,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 570 places, 644 transitions, 1372 flow [2023-11-10 12:02:14,787 INFO L124 PetriNetUnfolderBase]: 1211/7152 cut-off events. [2023-11-10 12:02:14,788 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-11-10 12:02:15,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7800 conditions, 7152 events. 1211/7152 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 65907 event pairs, 22 based on Foata normal form. 0/6225 useless extension candidates. Maximal degree in co-relation 4493. Up to 192 conditions per place. [2023-11-10 12:02:15,016 INFO L82 GeneralOperation]: Start removeDead. Operand has 570 places, 644 transitions, 1372 flow [2023-11-10 12:02:15,118 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 570 places, 644 transitions, 1372 flow [2023-11-10 12:02:15,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:02:15,122 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=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;@d4f7fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:02:15,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-10 12:02:15,266 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:02:15,266 INFO L124 PetriNetUnfolderBase]: 17/340 cut-off events. [2023-11-10 12:02:15,266 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-10 12:02:15,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:02:15,267 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:02:15,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 12:02:15,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:02:15,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1937916069, now seen corresponding path program 1 times [2023-11-10 12:02:15,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:02:15,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50924365] [2023-11-10 12:02:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:02:15,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:02:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:15,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 12:02:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:15,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 12:02:15,444 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 12:02:15,444 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-10 12:02:15,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-11-10 12:02:15,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-11-10 12:02:15,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-11-10 12:02:15,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-10 12:02:15,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-11-10 12:02:15,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-11-10 12:02:15,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-11-10 12:02:15,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-11-10 12:02:15,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 12:02:15,446 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 12:02:15,447 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 12:02:15,447 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-10 12:02:15,597 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2023-11-10 12:02:15,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 764 places, 871 transitions, 1877 flow [2023-11-10 12:02:38,629 INFO L124 PetriNetUnfolderBase]: 9176/36640 cut-off events. [2023-11-10 12:02:38,630 INFO L125 PetriNetUnfolderBase]: For 7059/7059 co-relation queries the response was YES. [2023-11-10 12:02:42,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43751 conditions, 36640 events. 9176/36640 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 413068 event pairs, 1024 based on Foata normal form. 0/32248 useless extension candidates. Maximal degree in co-relation 23590. Up to 2304 conditions per place. [2023-11-10 12:02:42,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 764 places, 871 transitions, 1877 flow [2023-11-10 12:02:43,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 764 places, 871 transitions, 1877 flow [2023-11-10 12:02:43,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:02:43,471 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=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;@d4f7fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:02:43,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-10 12:02:43,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:02:43,542 INFO L124 PetriNetUnfolderBase]: 49/816 cut-off events. [2023-11-10 12:02:43,542 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-10 12:02:43,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:02:43,542 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:02:43,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-10 12:02:43,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:02:43,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1708693514, now seen corresponding path program 1 times [2023-11-10 12:02:43,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:02:43,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395710477] [2023-11-10 12:02:43,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:02:43,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:02:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:43,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 12:02:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:43,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 12:02:43,669 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 12:02:43,670 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-10 12:02:43,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2023-11-10 12:02:43,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-11-10 12:02:43,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2023-11-10 12:02:43,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2023-11-10 12:02:43,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2023-11-10 12:02:43,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2023-11-10 12:02:43,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2023-11-10 12:02:43,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2023-11-10 12:02:43,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2023-11-10 12:02:43,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2023-11-10 12:02:43,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 12:02:43,673 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 12:02:43,674 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 12:02:43,674 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-10 12:02:43,838 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2023-11-10 12:02:43,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 958 places, 1098 transitions, 2388 flow