/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:53:06,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:53:06,893 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 [2023-12-09 14:53:06,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:53:06,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:53:06,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:53:06,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:53:06,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:53:06,922 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:53:06,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:53:06,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:53:06,923 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:53:06,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:53:06,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:53:06,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:53:06,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:53:06,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:53:06,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:53:06,925 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:53:06,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:53:06,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:53:06,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:53:06,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:53:06,928 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:53:06,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:53:06,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:53:06,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:53:06,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:53:06,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:53:06,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:53:06,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:53:06,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:53:06,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:53:06,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:53:07,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:53:07,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:53:07,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:53:07,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:53:07,131 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:53:07,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2023-12-09 14:53:08,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:53:08,475 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:53:08,476 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2023-12-09 14:53:08,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b7682680/6535bda590094e999c608eb1dbf808a3/FLAGaff863b19 [2023-12-09 14:53:08,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b7682680/6535bda590094e999c608eb1dbf808a3 [2023-12-09 14:53:08,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:53:08,504 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:53:08,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:53:08,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:53:08,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:53:08,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435706a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08, skipping insertion in model container [2023-12-09 14:53:08,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,554 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:53:08,771 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i[30915,30928] [2023-12-09 14:53:08,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:53:08,792 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:53:08,837 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i[30915,30928] [2023-12-09 14:53:08,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:53:08,870 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:53:08,871 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:53:08,876 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:53:08,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08 WrapperNode [2023-12-09 14:53:08,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:53:08,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:53:08,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:53:08,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:53:08,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,904 INFO L138 Inliner]: procedures = 166, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-12-09 14:53:08,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:53:08,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:53:08,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:53:08,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:53:08,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,920 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:53:08,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:53:08,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:53:08,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:53:08,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (1/1) ... [2023-12-09 14:53:08,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:53:08,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:53:08,961 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) [2023-12-09 14:53:09,010 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 [2023-12-09 14:53:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2023-12-09 14:53:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-12-09 14:53:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-12-09 14:53:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:53:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2023-12-09 14:53:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:53:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:53:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:53:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2023-12-09 14:53:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:53:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:53:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:53:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:53:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:53:09,035 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 14:53:09,151 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:53:09,152 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:53:09,291 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:53:09,324 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:53:09,324 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:53:09,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:53:09 BoogieIcfgContainer [2023-12-09 14:53:09,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:53:09,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:53:09,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:53:09,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:53:09,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:53:08" (1/3) ... [2023-12-09 14:53:09,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f8117b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:53:09, skipping insertion in model container [2023-12-09 14:53:09,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:53:08" (2/3) ... [2023-12-09 14:53:09,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f8117b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:53:09, skipping insertion in model container [2023-12-09 14:53:09,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:53:09" (3/3) ... [2023-12-09 14:53:09,331 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock-pthread.i [2023-12-09 14:53:09,344 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:53:09,344 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:53:09,344 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:53:09,388 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:53:09,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 67 transitions, 138 flow [2023-12-09 14:53:09,437 INFO L124 PetriNetUnfolderBase]: 1/66 cut-off events. [2023-12-09 14:53:09,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:53:09,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-12-09 14:53:09,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 67 transitions, 138 flow [2023-12-09 14:53:09,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 50 transitions, 103 flow [2023-12-09 14:53:09,449 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:53:09,454 INFO L362 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=true, 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;@336b7e46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:53:09,454 INFO L363 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-09 14:53:09,464 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:53:09,464 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2023-12-09 14:53:09,464 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:53:09,464 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:53:09,465 INFO L233 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] [2023-12-09 14:53:09,465 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:53:09,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:53:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1945371759, now seen corresponding path program 1 times [2023-12-09 14:53:09,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:53:09,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293161274] [2023-12-09 14:53:09,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:53:09,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:53:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:53:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:53:09,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:53:09,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293161274] [2023-12-09 14:53:09,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293161274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:53:09,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:53:09,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:53:09,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738395792] [2023-12-09 14:53:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:53:09,756 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:53:09,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:53:09,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:53:09,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:53:09,783 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 67 [2023-12-09 14:53:09,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 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) [2023-12-09 14:53:09,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:53:09,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 67 [2023-12-09 14:53:09,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:53:09,899 INFO L124 PetriNetUnfolderBase]: 20/120 cut-off events. [2023-12-09 14:53:09,900 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 14:53:09,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 120 events. 20/120 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 310 event pairs, 8 based on Foata normal form. 6/124 useless extension candidates. Maximal degree in co-relation 151. Up to 37 conditions per place. [2023-12-09 14:53:09,901 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 14 selfloop transitions, 6 changer transitions 9/66 dead transitions. [2023-12-09 14:53:09,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 193 flow [2023-12-09 14:53:09,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 14:53:09,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 14:53:09,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 374 transitions. [2023-12-09 14:53:09,912 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7974413646055437 [2023-12-09 14:53:09,912 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 374 transitions. [2023-12-09 14:53:09,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 374 transitions. [2023-12-09 14:53:09,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:53:09,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 374 transitions. [2023-12-09 14:53:09,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:53:09,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 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) [2023-12-09 14:53:09,923 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 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) [2023-12-09 14:53:09,925 INFO L308 CegarLoopForPetriNet]: 54 programPoint places, 6 predicate places. [2023-12-09 14:53:09,926 INFO L500 AbstractCegarLoop]: Abstraction has has 60 places, 66 transitions, 193 flow [2023-12-09 14:53:09,926 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 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) [2023-12-09 14:53:09,926 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:53:09,926 INFO L233 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] [2023-12-09 14:53:09,926 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:53:09,926 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:53:09,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:53:09,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1790925711, now seen corresponding path program 1 times [2023-12-09 14:53:09,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:53:09,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946505501] [2023-12-09 14:53:09,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:53:09,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:53:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:53:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:53:10,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:53:10,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946505501] [2023-12-09 14:53:10,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946505501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:53:10,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:53:10,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 14:53:10,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986310694] [2023-12-09 14:53:10,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:53:10,051 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 14:53:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:53:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 14:53:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 14:53:10,053 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 67 [2023-12-09 14:53:10,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 66 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-12-09 14:53:10,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:53:10,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 67 [2023-12-09 14:53:10,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:53:10,082 INFO L124 PetriNetUnfolderBase]: 5/71 cut-off events. [2023-12-09 14:53:10,082 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-12-09 14:53:10,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 71 events. 5/71 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 3 based on Foata normal form. 18/87 useless extension candidates. Maximal degree in co-relation 79. Up to 22 conditions per place. [2023-12-09 14:53:10,083 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 14 selfloop transitions, 1 changer transitions 4/54 dead transitions. [2023-12-09 14:53:10,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 183 flow [2023-12-09 14:53:10,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 14:53:10,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 14:53:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2023-12-09 14:53:10,085 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2023-12-09 14:53:10,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 162 transitions. [2023-12-09 14:53:10,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 162 transitions. [2023-12-09 14:53:10,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:53:10,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 162 transitions. [2023-12-09 14:53:10,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-12-09 14:53:10,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2023-12-09 14:53:10,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2023-12-09 14:53:10,087 INFO L308 CegarLoopForPetriNet]: 54 programPoint places, 4 predicate places. [2023-12-09 14:53:10,088 INFO L500 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 183 flow [2023-12-09 14:53:10,088 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-12-09 14:53:10,088 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:53:10,088 INFO L233 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] [2023-12-09 14:53:10,088 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:53:10,088 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:53:10,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:53:10,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1085714361, now seen corresponding path program 2 times [2023-12-09 14:53:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:53:10,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582745270] [2023-12-09 14:53:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:53:10,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:53:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:53:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:53:10,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:53:10,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582745270] [2023-12-09 14:53:10,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582745270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:53:10,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:53:10,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 14:53:10,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372029326] [2023-12-09 14:53:10,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:53:10,246 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 14:53:10,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:53:10,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 14:53:10,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 14:53:10,247 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 67 [2023-12-09 14:53:10,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-12-09 14:53:10,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:53:10,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 67 [2023-12-09 14:53:10,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:53:10,299 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2023-12-09 14:53:10,300 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-12-09 14:53:10,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 49 events. 2/49 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 2 based on Foata normal form. 2/49 useless extension candidates. Maximal degree in co-relation 39. Up to 15 conditions per place. [2023-12-09 14:53:10,300 INFO L140 encePairwiseOnDemand]: 65/67 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-12-09 14:53:10,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 173 flow [2023-12-09 14:53:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 14:53:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 14:53:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2023-12-09 14:53:10,301 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7960199004975125 [2023-12-09 14:53:10,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 160 transitions. [2023-12-09 14:53:10,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 160 transitions. [2023-12-09 14:53:10,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:53:10,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 160 transitions. [2023-12-09 14:53:10,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2023-12-09 14:53:10,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2023-12-09 14:53:10,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2023-12-09 14:53:10,304 INFO L308 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-12-09 14:53:10,304 INFO L500 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 173 flow [2023-12-09 14:53:10,304 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-12-09 14:53:10,310 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/18_read_write_lock-pthread.i_BEv2_AllErrorsAtOnce [2023-12-09 14:53:10,337 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-09 14:53:10,337 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-12-09 14:53:10,337 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:53:10,338 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1] [2023-12-09 14:53:10,340 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:53:10,340 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:53:10,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:53:10 BasicIcfg [2023-12-09 14:53:10,345 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:53:10,345 INFO L158 Benchmark]: Toolchain (without parser) took 1841.16ms. Allocated memory is still 341.8MB. Free memory was 288.6MB in the beginning and 207.7MB in the end (delta: 80.9MB). Peak memory consumption was 82.4MB. Max. memory is 8.0GB. [2023-12-09 14:53:10,346 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 245.4MB. Free memory was 195.9MB in the beginning and 195.8MB in the end (delta: 107.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:53:10,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.41ms. Allocated memory is still 341.8MB. Free memory was 288.5MB in the beginning and 268.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 14:53:10,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.45ms. Allocated memory is still 341.8MB. Free memory was 268.3MB in the beginning and 266.5MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:53:10,347 INFO L158 Benchmark]: Boogie Preprocessor took 20.80ms. Allocated memory is still 341.8MB. Free memory was 266.5MB in the beginning and 265.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:53:10,347 INFO L158 Benchmark]: RCFGBuilder took 399.58ms. Allocated memory is still 341.8MB. Free memory was 264.8MB in the beginning and 250.9MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-09 14:53:10,347 INFO L158 Benchmark]: TraceAbstraction took 1017.72ms. Allocated memory is still 341.8MB. Free memory was 250.1MB in the beginning and 207.7MB in the end (delta: 42.5MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2023-12-09 14:53:10,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 245.4MB. Free memory was 195.9MB in the beginning and 195.8MB in the end (delta: 107.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 371.41ms. Allocated memory is still 341.8MB. Free memory was 288.5MB in the beginning and 268.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.45ms. Allocated memory is still 341.8MB. Free memory was 268.3MB in the beginning and 266.5MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.80ms. Allocated memory is still 341.8MB. Free memory was 266.5MB in the beginning and 265.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 399.58ms. Allocated memory is still 341.8MB. Free memory was 264.8MB in the beginning and 250.9MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1017.72ms. Allocated memory is still 341.8MB. Free memory was 250.1MB in the beginning and 207.7MB in the end (delta: 42.5MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 709]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 77 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 34 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=1, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:53:10,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...