/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 -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:30:18,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:30:18,459 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-SemanticLbe.epf [2023-11-17 11:30:18,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:30:18,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:30:18,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:30:18,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:30:18,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:30:18,498 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:30:18,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:30:18,505 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:30:18,506 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:30:18,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:30:18,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:30:18,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:30:18,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:30:18,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:30:18,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:30:18,508 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:30:18,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:30:18,508 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:30:18,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:30:18,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:30:18,510 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:30:18,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:30:18,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:30:18,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:30:18,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:30:18,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:30:18,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:30:18,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:30:18,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:30:18,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:30:18,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:30:18,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:30:18,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:30:18,750 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:30:18,751 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:30:18,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2023-11-17 11:30:19,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:30:20,237 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:30:20,237 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2023-11-17 11:30:20,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b6dae0a/b9ce3fad7b904b788856e9fc682f2646/FLAG3e19d61d4 [2023-11-17 11:30:20,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b6dae0a/b9ce3fad7b904b788856e9fc682f2646 [2023-11-17 11:30:20,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:30:20,298 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:30:20,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:30:20,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:30:20,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:30:20,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:30:20" (1/1) ... [2023-11-17 11:30:20,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a46b045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:20, skipping insertion in model container [2023-11-17 11:30:20,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:30:20" (1/1) ... [2023-11-17 11:30:20,375 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:30:21,068 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2023-11-17 11:30:21,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:30:21,118 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:30:21,175 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2023-11-17 11:30:21,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:30:21,319 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:30:21,320 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:30:21,326 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:30:21,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21 WrapperNode [2023-11-17 11:30:21,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:30:21,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:30:21,329 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:30:21,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:30:21,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,420 INFO L138 Inliner]: procedures = 483, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-11-17 11:30:21,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:30:21,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:30:21,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:30:21,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:30:21,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:30:21,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:30:21,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:30:21,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:30:21,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (1/1) ... [2023-11-17 11:30:21,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:30:21,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:30:21,510 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) [2023-11-17 11:30:21,534 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 [2023-11-17 11:30:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 11:30:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:30:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 11:30:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:30:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:30:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:30:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 11:30:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:30:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:30:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:30:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:30:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 11:30:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 11:30:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:30:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:30:21,547 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:30:21,849 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:30:21,851 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:30:22,019 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:30:22,119 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:30:22,120 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:30:22,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:30:22 BoogieIcfgContainer [2023-11-17 11:30:22,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:30:22,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:30:22,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:30:22,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:30:22,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:30:20" (1/3) ... [2023-11-17 11:30:22,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19653c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:30:22, skipping insertion in model container [2023-11-17 11:30:22,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:21" (2/3) ... [2023-11-17 11:30:22,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19653c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:30:22, skipping insertion in model container [2023-11-17 11:30:22,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:30:22" (3/3) ... [2023-11-17 11:30:22,129 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2023-11-17 11:30:22,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:30:22,145 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-17 11:30:22,145 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:30:22,176 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 11:30:22,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 37 transitions, 81 flow [2023-11-17 11:30:22,229 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2023-11-17 11:30:22,230 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:30:22,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 17. Up to 3 conditions per place. [2023-11-17 11:30:22,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 37 transitions, 81 flow [2023-11-17 11:30:22,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 28 transitions, 62 flow [2023-11-17 11:30:22,239 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:30:22,250 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 28 transitions, 62 flow [2023-11-17 11:30:22,254 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 28 transitions, 62 flow [2023-11-17 11:30:22,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 62 flow [2023-11-17 11:30:22,265 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2023-11-17 11:30:22,265 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:30:22,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 28 events. 1/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 10. Up to 2 conditions per place. [2023-11-17 11:30:22,266 INFO L119 LiptonReduction]: Number of co-enabled transitions 84 [2023-11-17 11:30:24,087 INFO L134 LiptonReduction]: Checked pairs total: 108 [2023-11-17 11:30:24,087 INFO L136 LiptonReduction]: Total number of compositions: 24 [2023-11-17 11:30:24,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:30:24,105 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;@252cf4ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:30:24,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 11:30:24,106 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:30:24,106 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-17 11:30:24,106 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:30:24,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:24,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-17 11:30:24,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 11:30:24,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:24,110 INFO L85 PathProgramCache]: Analyzing trace with hash 315, now seen corresponding path program 1 times [2023-11-17 11:30:24,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:24,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356549320] [2023-11-17 11:30:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:24,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:24,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:24,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356549320] [2023-11-17 11:30:24,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356549320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:24,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:24,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-17 11:30:24,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071018570] [2023-11-17 11:30:24,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:24,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 11:30:24,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:24,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 11:30:24,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 11:30:24,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 61 [2023-11-17 11:30:24,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-11-17 11:30:24,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:24,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 61 [2023-11-17 11:30:24,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:24,351 INFO L124 PetriNetUnfolderBase]: 3/13 cut-off events. [2023-11-17 11:30:24,351 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:30:24,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 13 events. 3/13 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 3 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 20. Up to 14 conditions per place. [2023-11-17 11:30:24,352 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-11-17 11:30:24,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 34 flow [2023-11-17 11:30:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 11:30:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 11:30:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 40 transitions. [2023-11-17 11:30:24,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32786885245901637 [2023-11-17 11:30:24,361 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 40 transitions. [2023-11-17 11:30:24,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 40 transitions. [2023-11-17 11:30:24,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:24,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 40 transitions. [2023-11-17 11:30:24,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2023-11-17 11:30:24,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 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) [2023-11-17 11:30:24,368 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 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) [2023-11-17 11:30:24,370 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 40 transitions. [2023-11-17 11:30:24,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 34 flow [2023-11-17 11:30:24,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:30:24,373 INFO L231 Difference]: Finished difference. Result has 10 places, 5 transitions, 11 flow [2023-11-17 11:30:24,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=11, PETRI_PLACES=10, PETRI_TRANSITIONS=5} [2023-11-17 11:30:24,381 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-11-17 11:30:24,381 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 5 transitions, 11 flow [2023-11-17 11:30:24,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-11-17 11:30:24,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:24,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-17 11:30:24,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:30:24,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 11:30:24,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:24,383 INFO L85 PathProgramCache]: Analyzing trace with hash 9950384, now seen corresponding path program 1 times [2023-11-17 11:30:24,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:24,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784270275] [2023-11-17 11:30:24,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:24,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:24,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:24,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784270275] [2023-11-17 11:30:24,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784270275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:24,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:24,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:30:24,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669929991] [2023-11-17 11:30:24,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:24,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:30:24,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:24,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:30:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:30:24,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 61 [2023-11-17 11:30:24,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 5 transitions, 11 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-11-17 11:30:24,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:24,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 61 [2023-11-17 11:30:24,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:24,636 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-17 11:30:24,637 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:30:24,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-11-17 11:30:24,637 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 3 selfloop transitions, 2 changer transitions 1/6 dead transitions. [2023-11-17 11:30:24,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 25 flow [2023-11-17 11:30:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:30:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:30:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2023-11-17 11:30:24,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25136612021857924 [2023-11-17 11:30:24,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 46 transitions. [2023-11-17 11:30:24,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 46 transitions. [2023-11-17 11:30:24,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:24,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 46 transitions. [2023-11-17 11:30:24,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-11-17 11:30:24,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2023-11-17 11:30:24,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2023-11-17 11:30:24,641 INFO L175 Difference]: Start difference. First operand has 10 places, 5 transitions, 11 flow. Second operand 3 states and 46 transitions. [2023-11-17 11:30:24,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 25 flow [2023-11-17 11:30:24,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 25 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 11:30:24,642 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2023-11-17 11:30:24,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=11, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2023-11-17 11:30:24,643 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-11-17 11:30:24,643 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 19 flow [2023-11-17 11:30:24,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-11-17 11:30:24,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:24,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-17 11:30:24,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:30:24,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 11:30:24,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash 308463365, now seen corresponding path program 1 times [2023-11-17 11:30:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:24,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155545169] [2023-11-17 11:30:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:24,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:30:24,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 11:30:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:30:24,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 11:30:24,699 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 11:30:24,700 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-17 11:30:24,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-17 11:30:24,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-11-17 11:30:24,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-11-17 11:30:24,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-17 11:30:24,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:30:24,703 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-17 11:30:24,707 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:30:24,707 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:30:24,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated [2023-11-17 11:30:24,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:30:24 BasicIcfg [2023-11-17 11:30:24,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:30:24,725 INFO L158 Benchmark]: Toolchain (without parser) took 4426.45ms. Allocated memory was 186.6MB in the beginning and 278.9MB in the end (delta: 92.3MB). Free memory was 136.9MB in the beginning and 150.1MB in the end (delta: -13.2MB). Peak memory consumption was 80.4MB. Max. memory is 8.0GB. [2023-11-17 11:30:24,725 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 119.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:30:24,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1025.94ms. Allocated memory was 186.6MB in the beginning and 278.9MB in the end (delta: 92.3MB). Free memory was 136.6MB in the beginning and 230.9MB in the end (delta: -94.2MB). Peak memory consumption was 49.4MB. Max. memory is 8.0GB. [2023-11-17 11:30:24,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.36ms. Allocated memory is still 278.9MB. Free memory was 230.9MB in the beginning and 227.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:30:24,726 INFO L158 Benchmark]: Boogie Preprocessor took 56.47ms. Allocated memory is still 278.9MB. Free memory was 227.7MB in the beginning and 225.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:30:24,727 INFO L158 Benchmark]: RCFGBuilder took 642.91ms. Allocated memory is still 278.9MB. Free memory was 225.1MB in the beginning and 193.1MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-11-17 11:30:24,727 INFO L158 Benchmark]: TraceAbstraction took 2600.69ms. Allocated memory is still 278.9MB. Free memory was 192.6MB in the beginning and 150.1MB in the end (delta: 42.5MB). Peak memory consumption was 42.5MB. Max. memory is 8.0GB. [2023-11-17 11:30:24,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 119.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1025.94ms. Allocated memory was 186.6MB in the beginning and 278.9MB in the end (delta: 92.3MB). Free memory was 136.6MB in the beginning and 230.9MB in the end (delta: -94.2MB). Peak memory consumption was 49.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 92.36ms. Allocated memory is still 278.9MB. Free memory was 230.9MB in the beginning and 227.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.47ms. Allocated memory is still 278.9MB. Free memory was 227.7MB in the beginning and 225.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 642.91ms. Allocated memory is still 278.9MB. Free memory was 225.1MB in the beginning and 193.1MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2600.69ms. Allocated memory is still 278.9MB. Free memory was 192.6MB in the beginning and 150.1MB in the end (delta: 42.5MB). Peak memory consumption was 42.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 31 PlacesBefore, 14 PlacesAfterwards, 28 TransitionsBefore, 10 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 4 FixpointIterations, 12 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 24 TotalNumberOfCompositions, 108 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 101, independent: 86, independent conditional: 0, independent unconditional: 86, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 101, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 5 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: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-17 11:30:24,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...