/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 01:51:22,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 01:51:22,448 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 01:51:22,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 01:51:22,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 01:51:22,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 01:51:22,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 01:51:22,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 01:51:22,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 01:51:22,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 01:51:22,500 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 01:51:22,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 01:51:22,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 01:51:22,502 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 01:51:22,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 01:51:22,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 01:51:22,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 01:51:22,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 01:51:22,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 01:51:22,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 01:51:22,503 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 01:51:22,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 01:51:22,504 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 01:51:22,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 01:51:22,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 01:51:22,505 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 01:51:22,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 01:51:22,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 01:51:22,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 01:51:22,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 01:51:22,507 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 01:51:22,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 01:51:22,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 01:51:22,508 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 01:51:22,508 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 01:51:22,508 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-08-24 01:51:22,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 01:51:22,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 01:51:22,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 01:51:22,836 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 01:51:22,838 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 01:51:22,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-08-24 01:51:23,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 01:51:24,175 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 01:51:24,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-08-24 01:51:24,182 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5720585c3/4029c916d79b4ca59c0cfc49f545d61c/FLAG9a5026429 [2023-08-24 01:51:24,198 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5720585c3/4029c916d79b4ca59c0cfc49f545d61c [2023-08-24 01:51:24,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 01:51:24,205 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 01:51:24,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 01:51:24,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 01:51:24,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 01:51:24,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b82484b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24, skipping insertion in model container [2023-08-24 01:51:24,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,235 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 01:51:24,408 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c[2652,2665] [2023-08-24 01:51:24,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 01:51:24,423 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 01:51:24,455 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c[2652,2665] [2023-08-24 01:51:24,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 01:51:24,464 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 01:51:24,464 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 01:51:24,470 INFO L206 MainTranslator]: Completed translation [2023-08-24 01:51:24,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24 WrapperNode [2023-08-24 01:51:24,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 01:51:24,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 01:51:24,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 01:51:24,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 01:51:24,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,521 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 124 [2023-08-24 01:51:24,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 01:51:24,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 01:51:24,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 01:51:24,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 01:51:24,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 01:51:24,555 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 01:51:24,555 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 01:51:24,555 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 01:51:24,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (1/1) ... [2023-08-24 01:51:24,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 01:51:24,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 01:51:24,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 01:51:24,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 01:51:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 01:51:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 01:51:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 01:51:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 01:51:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 01:51:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 01:51:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 01:51:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 01:51:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 01:51:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 01:51:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 01:51:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 01:51:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 01:51:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 01:51:24,622 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 01:51:24,702 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 01:51:24,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 01:51:24,916 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 01:51:24,966 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 01:51:24,966 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 01:51:24,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:51:24 BoogieIcfgContainer [2023-08-24 01:51:24,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 01:51:24,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 01:51:24,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 01:51:24,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 01:51:24,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 01:51:24" (1/3) ... [2023-08-24 01:51:24,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ad3f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:51:24, skipping insertion in model container [2023-08-24 01:51:24,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:24" (2/3) ... [2023-08-24 01:51:24,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ad3f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:51:24, skipping insertion in model container [2023-08-24 01:51:24,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:51:24" (3/3) ... [2023-08-24 01:51:24,976 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2023-08-24 01:51:24,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 01:51:24,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 01:51:24,991 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 01:51:25,068 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 01:51:25,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions, 206 flow [2023-08-24 01:51:25,177 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2023-08-24 01:51:25,177 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 01:51:25,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 2/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-08-24 01:51:25,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 95 transitions, 206 flow [2023-08-24 01:51:25,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 85 transitions, 182 flow [2023-08-24 01:51:25,193 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 01:51:25,205 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 85 transitions, 182 flow [2023-08-24 01:51:25,209 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 85 transitions, 182 flow [2023-08-24 01:51:25,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 182 flow [2023-08-24 01:51:25,242 INFO L124 PetriNetUnfolderBase]: 2/85 cut-off events. [2023-08-24 01:51:25,243 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 01:51:25,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 2/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-08-24 01:51:25,246 INFO L119 LiptonReduction]: Number of co-enabled transitions 282 [2023-08-24 01:51:28,043 INFO L134 LiptonReduction]: Checked pairs total: 1334 [2023-08-24 01:51:28,043 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-24 01:51:28,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 01:51:28,060 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3211f02b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 01:51:28,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-24 01:51:28,064 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 01:51:28,065 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-08-24 01:51:28,065 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 01:51:28,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:28,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:28,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 01:51:28,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1313733496, now seen corresponding path program 1 times [2023-08-24 01:51:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:28,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733142725] [2023-08-24 01:51:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:28,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:28,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:28,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733142725] [2023-08-24 01:51:28,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733142725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:28,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:28,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 01:51:28,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434077547] [2023-08-24 01:51:28,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:28,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 01:51:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:28,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 01:51:28,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 01:51:28,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 169 [2023-08-24 01:51:28,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:28,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:28,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 169 [2023-08-24 01:51:28,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:28,950 INFO L124 PetriNetUnfolderBase]: 97/199 cut-off events. [2023-08-24 01:51:28,950 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-08-24 01:51:28,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 199 events. 97/199 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 625 event pairs, 38 based on Foata normal form. 1/200 useless extension candidates. Maximal degree in co-relation 352. Up to 98 conditions per place. [2023-08-24 01:51:28,954 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 21 selfloop transitions, 2 changer transitions 13/36 dead transitions. [2023-08-24 01:51:28,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 36 transitions, 165 flow [2023-08-24 01:51:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 01:51:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 01:51:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 402 transitions. [2023-08-24 01:51:28,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4757396449704142 [2023-08-24 01:51:28,966 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 402 transitions. [2023-08-24 01:51:28,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 402 transitions. [2023-08-24 01:51:28,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:28,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 402 transitions. [2023-08-24 01:51:28,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:28,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:28,979 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:28,981 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 48 flow. Second operand 5 states and 402 transitions. [2023-08-24 01:51:28,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 36 transitions, 165 flow [2023-08-24 01:51:28,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 36 transitions, 151 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 01:51:28,985 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 52 flow [2023-08-24 01:51:28,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=52, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-24 01:51:28,989 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-24 01:51:28,989 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 52 flow [2023-08-24 01:51:28,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:28,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:28,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:28,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 01:51:28,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 01:51:28,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:28,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1644082166, now seen corresponding path program 2 times [2023-08-24 01:51:28,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:28,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702145467] [2023-08-24 01:51:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:28,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:29,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:29,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702145467] [2023-08-24 01:51:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702145467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:29,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:29,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 01:51:29,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226955887] [2023-08-24 01:51:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:29,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 01:51:29,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:29,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 01:51:29,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-24 01:51:29,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 169 [2023-08-24 01:51:29,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 52 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:29,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 169 [2023-08-24 01:51:29,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:29,285 INFO L124 PetriNetUnfolderBase]: 41/113 cut-off events. [2023-08-24 01:51:29,285 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 01:51:29,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 113 events. 41/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 360 event pairs, 8 based on Foata normal form. 4/117 useless extension candidates. Maximal degree in co-relation 238. Up to 44 conditions per place. [2023-08-24 01:51:29,287 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 25 selfloop transitions, 8 changer transitions 0/36 dead transitions. [2023-08-24 01:51:29,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 156 flow [2023-08-24 01:51:29,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 01:51:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 01:51:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 472 transitions. [2023-08-24 01:51:29,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46548323471400394 [2023-08-24 01:51:29,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 472 transitions. [2023-08-24 01:51:29,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 472 transitions. [2023-08-24 01:51:29,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:29,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 472 transitions. [2023-08-24 01:51:29,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,300 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,300 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 52 flow. Second operand 6 states and 472 transitions. [2023-08-24 01:51:29,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 156 flow [2023-08-24 01:51:29,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 148 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-24 01:51:29,303 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 92 flow [2023-08-24 01:51:29,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-08-24 01:51:29,304 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-08-24 01:51:29,304 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 92 flow [2023-08-24 01:51:29,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:29,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:29,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 01:51:29,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 01:51:29,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1318093466, now seen corresponding path program 3 times [2023-08-24 01:51:29,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:29,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739464152] [2023-08-24 01:51:29,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:29,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:29,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:29,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739464152] [2023-08-24 01:51:29,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739464152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:29,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:29,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 01:51:29,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918917521] [2023-08-24 01:51:29,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:29,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 01:51:29,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:29,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 01:51:29,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-24 01:51:29,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 169 [2023-08-24 01:51:29,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:29,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 169 [2023-08-24 01:51:29,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:29,590 INFO L124 PetriNetUnfolderBase]: 79/173 cut-off events. [2023-08-24 01:51:29,590 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-24 01:51:29,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 173 events. 79/173 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 533 event pairs, 39 based on Foata normal form. 1/174 useless extension candidates. Maximal degree in co-relation 216. Up to 98 conditions per place. [2023-08-24 01:51:29,594 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 20 selfloop transitions, 3 changer transitions 21/44 dead transitions. [2023-08-24 01:51:29,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 44 transitions, 242 flow [2023-08-24 01:51:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 01:51:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 01:51:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 401 transitions. [2023-08-24 01:51:29,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47455621301775147 [2023-08-24 01:51:29,596 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 401 transitions. [2023-08-24 01:51:29,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 401 transitions. [2023-08-24 01:51:29,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:29,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 401 transitions. [2023-08-24 01:51:29,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,600 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,600 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 92 flow. Second operand 5 states and 401 transitions. [2023-08-24 01:51:29,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 44 transitions, 242 flow [2023-08-24 01:51:29,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 242 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 01:51:29,604 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 81 flow [2023-08-24 01:51:29,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=36, PETRI_TRANSITIONS=20} [2023-08-24 01:51:29,606 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2023-08-24 01:51:29,609 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 81 flow [2023-08-24 01:51:29,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:29,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:29,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 01:51:29,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 01:51:29,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:29,611 INFO L85 PathProgramCache]: Analyzing trace with hash -948055508, now seen corresponding path program 4 times [2023-08-24 01:51:29,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:29,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326060195] [2023-08-24 01:51:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:29,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:29,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:29,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326060195] [2023-08-24 01:51:29,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326060195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:29,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:29,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 01:51:29,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020868608] [2023-08-24 01:51:29,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:29,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 01:51:29,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:29,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 01:51:29,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-24 01:51:29,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 169 [2023-08-24 01:51:29,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:29,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 169 [2023-08-24 01:51:29,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:29,845 INFO L124 PetriNetUnfolderBase]: 6/19 cut-off events. [2023-08-24 01:51:29,845 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-24 01:51:29,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 19 events. 6/19 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 4/23 useless extension candidates. Maximal degree in co-relation 54. Up to 8 conditions per place. [2023-08-24 01:51:29,845 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-24 01:51:29,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 11 transitions, 62 flow [2023-08-24 01:51:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 01:51:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 01:51:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 377 transitions. [2023-08-24 01:51:29,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2023-08-24 01:51:29,847 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 377 transitions. [2023-08-24 01:51:29,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 377 transitions. [2023-08-24 01:51:29,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:29,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 377 transitions. [2023-08-24 01:51:29,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,850 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,851 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 81 flow. Second operand 5 states and 377 transitions. [2023-08-24 01:51:29,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 11 transitions, 62 flow [2023-08-24 01:51:29,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 52 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-24 01:51:29,851 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-08-24 01:51:29,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-08-24 01:51:29,852 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2023-08-24 01:51:29,852 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-08-24 01:51:29,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:29,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-24 01:51:29,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-24 01:51:29,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-24 01:51:29,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 01:51:29,855 INFO L445 BasicCegarLoop]: Path program histogram: [4] [2023-08-24 01:51:29,858 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 01:51:29,858 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 01:51:29,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 01:51:29 BasicIcfg [2023-08-24 01:51:29,860 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 01:51:29,861 INFO L158 Benchmark]: Toolchain (without parser) took 5656.32ms. Allocated memory was 381.7MB in the beginning and 478.2MB in the end (delta: 96.5MB). Free memory was 357.8MB in the beginning and 423.3MB in the end (delta: -65.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.0GB. [2023-08-24 01:51:29,861 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 381.7MB. Free memory is still 358.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 01:51:29,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.36ms. Allocated memory is still 381.7MB. Free memory was 357.4MB in the beginning and 346.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 01:51:29,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.85ms. Allocated memory is still 381.7MB. Free memory was 346.7MB in the beginning and 344.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 01:51:29,862 INFO L158 Benchmark]: Boogie Preprocessor took 31.48ms. Allocated memory is still 381.7MB. Free memory was 344.8MB in the beginning and 343.4MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-24 01:51:29,862 INFO L158 Benchmark]: RCFGBuilder took 413.73ms. Allocated memory is still 381.7MB. Free memory was 343.4MB in the beginning and 326.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-24 01:51:29,863 INFO L158 Benchmark]: TraceAbstraction took 4890.19ms. Allocated memory was 381.7MB in the beginning and 478.2MB in the end (delta: 96.5MB). Free memory was 326.0MB in the beginning and 423.3MB in the end (delta: -97.3MB). Peak memory consumption was 902.1kB. Max. memory is 16.0GB. [2023-08-24 01:51:29,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 381.7MB. Free memory is still 358.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 263.36ms. Allocated memory is still 381.7MB. Free memory was 357.4MB in the beginning and 346.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.85ms. Allocated memory is still 381.7MB. Free memory was 346.7MB in the beginning and 344.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 31.48ms. Allocated memory is still 381.7MB. Free memory was 344.8MB in the beginning and 343.4MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 413.73ms. Allocated memory is still 381.7MB. Free memory was 343.4MB in the beginning and 326.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4890.19ms. Allocated memory was 381.7MB in the beginning and 478.2MB in the end (delta: 96.5MB). Free memory was 326.0MB in the beginning and 423.3MB in the end (delta: -97.3MB). Peak memory consumption was 902.1kB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 90 PlacesBefore, 25 PlacesAfterwards, 85 TransitionsBefore, 18 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 1334 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 772, independent: 648, independent conditional: 0, independent unconditional: 648, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 144, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 772, independent: 512, independent conditional: 0, independent unconditional: 512, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 144, unknown conditional: 0, unknown unconditional: 144] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 102]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 111 locations, 3 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: 4.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 238 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 6 mSDtfsCounter, 238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=2, InterpolantAutomatonStates: 21, 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, 1.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-08-24 01:51:29,881 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...