/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/13-privatized_57-singlethreaded-unlock_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:54:56,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:54:57,026 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 11:54:57,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:54:57,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:54:57,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:54:57,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:54:57,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:54:57,055 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:54:57,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:54:57,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:54:57,055 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:54:57,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:54:57,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:54:57,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:54:57,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:54:57,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:54:57,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:54:57,057 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:54:57,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:54:57,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:54:57,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:54:57,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:54:57,066 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:54:57,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:54:57,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:57,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:54:57,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:54:57,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:54:57,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:54:57,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:54:57,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:54:57,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:54:57,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:54:57,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:54:57,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:54:57,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:54:57,267 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:54:57,268 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:54:57,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_57-singlethreaded-unlock_true.i [2023-11-10 11:54:58,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:54:58,421 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:54:58,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_57-singlethreaded-unlock_true.i [2023-11-10 11:54:58,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/073f84717/ae09f20e76124626b5917b0bf19745c1/FLAGfa273ba79 [2023-11-10 11:54:58,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/073f84717/ae09f20e76124626b5917b0bf19745c1 [2023-11-10 11:54:58,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:54:58,453 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:54:58,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:58,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:54:58,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:54:58,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476be535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58, skipping insertion in model container [2023-11-10 11:54:58,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:54:58,611 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/13-privatized_57-singlethreaded-unlock_true.i[1098,1111] [2023-11-10 11:54:58,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:58,722 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:54:58,729 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/13-privatized_57-singlethreaded-unlock_true.i[1098,1111] [2023-11-10 11:54:58,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:58,768 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:54:58,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58 WrapperNode [2023-11-10 11:54:58,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:58,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:58,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:54:58,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:54:58,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,821 INFO L138 Inliner]: procedures = 162, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-11-10 11:54:58,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:58,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:54:58,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:54:58,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:54:58,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:54:58,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:54:58,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:54:58,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:54:58,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:58,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:58,876 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 11:54:58,889 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 11:54:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:54:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:54:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:54:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:54:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-10 11:54:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-10 11:54:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:54:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:54:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:54:58,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:54:58,915 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 11:54:58,993 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:54:58,994 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:54:59,084 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:54:59,090 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:54:59,090 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:54:59,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:59 BoogieIcfgContainer [2023-11-10 11:54:59,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:54:59,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:54:59,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:54:59,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:54:59,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:54:58" (1/3) ... [2023-11-10 11:54:59,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797fb21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:59, skipping insertion in model container [2023-11-10 11:54:59,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (2/3) ... [2023-11-10 11:54:59,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797fb21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:59, skipping insertion in model container [2023-11-10 11:54:59,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:59" (3/3) ... [2023-11-10 11:54:59,098 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_57-singlethreaded-unlock_true.i [2023-11-10 11:54:59,114 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:54:59,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 11:54:59,114 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:54:59,149 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:54:59,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 100 flow [2023-11-10 11:54:59,191 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2023-11-10 11:54:59,192 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:54:59,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 47 events. 1/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-11-10 11:54:59,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 48 transitions, 100 flow [2023-11-10 11:54:59,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2023-11-10 11:54:59,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:54:59,209 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;@13716e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:54:59,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-10 11:54:59,217 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:54:59,217 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2023-11-10 11:54:59,217 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:54:59,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:59,218 INFO L208 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] [2023-11-10 11:54:59,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:54:59,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:59,222 INFO L85 PathProgramCache]: Analyzing trace with hash -835466908, now seen corresponding path program 1 times [2023-11-10 11:54:59,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:59,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787483990] [2023-11-10 11:54:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:59,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:59,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787483990] [2023-11-10 11:54:59,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787483990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:59,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:59,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:54:59,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771804173] [2023-11-10 11:54:59,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:59,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:54:59,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:59,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:54:59,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:54:59,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 48 [2023-11-10 11:54:59,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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) [2023-11-10 11:54:59,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:59,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 48 [2023-11-10 11:54:59,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:59,658 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-11-10 11:54:59,658 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-10 11:54:59,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 34 events. 0/34 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-10 11:54:59,660 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-11-10 11:54:59,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 85 flow [2023-11-10 11:54:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:54:59,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:54:59,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 183 transitions. [2023-11-10 11:54:59,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7625 [2023-11-10 11:54:59,672 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 183 transitions. [2023-11-10 11:54:59,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 183 transitions. [2023-11-10 11:54:59,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:59,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 183 transitions. [2023-11-10 11:54:59,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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) [2023-11-10 11:54:59,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 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) [2023-11-10 11:54:59,685 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 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) [2023-11-10 11:54:59,686 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 75 flow. Second operand 5 states and 183 transitions. [2023-11-10 11:54:59,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 85 flow [2023-11-10 11:54:59,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:54:59,689 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-11-10 11:54:59,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-11-10 11:54:59,695 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-11-10 11:54:59,695 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-11-10 11:54:59,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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) [2023-11-10 11:54:59,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-10 11:54:59,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-10 11:54:59,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:54:59,699 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 11:54:59,705 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:54:59,705 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:54:59,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:54:59 BasicIcfg [2023-11-10 11:54:59,712 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:54:59,712 INFO L158 Benchmark]: Toolchain (without parser) took 1259.02ms. Allocated memory is still 187.7MB. Free memory was 144.7MB in the beginning and 149.4MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:54:59,713 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:54:59,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.99ms. Allocated memory is still 187.7MB. Free memory was 144.2MB in the beginning and 125.7MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-10 11:54:59,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.13ms. Allocated memory is still 187.7MB. Free memory was 125.7MB in the beginning and 123.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:54:59,714 INFO L158 Benchmark]: Boogie Preprocessor took 29.03ms. Allocated memory is still 187.7MB. Free memory was 123.7MB in the beginning and 122.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 11:54:59,715 INFO L158 Benchmark]: RCFGBuilder took 240.51ms. Allocated memory is still 187.7MB. Free memory was 122.2MB in the beginning and 111.1MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-10 11:54:59,715 INFO L158 Benchmark]: TraceAbstraction took 618.25ms. Allocated memory is still 187.7MB. Free memory was 110.1MB in the beginning and 149.4MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:54:59,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 314.99ms. Allocated memory is still 187.7MB. Free memory was 144.2MB in the beginning and 125.7MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.13ms. Allocated memory is still 187.7MB. Free memory was 125.7MB in the beginning and 123.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.03ms. Allocated memory is still 187.7MB. Free memory was 123.7MB in the beginning and 122.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 240.51ms. Allocated memory is still 187.7MB. Free memory was 122.2MB in the beginning and 111.1MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 618.25ms. Allocated memory is still 187.7MB. Free memory was 110.1MB in the beginning and 149.4MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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, 53 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-11-10 11:54:59,734 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...