/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:52:43,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:52:43,604 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 [2023-08-27 04:52:43,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:52:43,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:52:43,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:52:43,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:52:43,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:52:43,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:52:43,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:52:43,635 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:52:43,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:52:43,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:52:43,637 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:52:43,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:52:43,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:52:43,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:52:43,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:52:43,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:52:43,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:52:43,638 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:52:43,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:52:43,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:52:43,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:52:43,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:52:43,639 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:52:43,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:52:43,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:52:43,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:52:43,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:52:43,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:52:43,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:52:43,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:52:43,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:52:43,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:52:43,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:52:43,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:52:43,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:52:43,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:52:43,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:52:43,915 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:52:43,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2023-08-27 04:52:44,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:52:45,123 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:52:45,123 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2023-08-27 04:52:45,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fecb11f6/d1be569dc9174d339cbd534c1ecb07f2/FLAG4dfb73e48 [2023-08-27 04:52:45,154 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fecb11f6/d1be569dc9174d339cbd534c1ecb07f2 [2023-08-27 04:52:45,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:52:45,160 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:52:45,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:52:45,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:52:45,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:52:45,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76459f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45, skipping insertion in model container [2023-08-27 04:52:45,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,202 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:52:45,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:52:45,449 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:52:45,474 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-27 04:52:45,475 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:52:45,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:52:45,518 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:52:45,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45 WrapperNode [2023-08-27 04:52:45,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:52:45,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:52:45,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:52:45,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:52:45,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,551 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 59 [2023-08-27 04:52:45,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:52:45,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:52:45,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:52:45,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:52:45,560 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:52:45,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:52:45,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:52:45,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:52:45,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (1/1) ... [2023-08-27 04:52:45,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:52:45,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:52:45,592 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) [2023-08-27 04:52:45,595 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 [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:52:45,626 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:52:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:52:45,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:52:45,627 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 04:52:45,723 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:52:45,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:52:45,815 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:52:45,819 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:52:45,819 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:52:45,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:52:45 BoogieIcfgContainer [2023-08-27 04:52:45,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:52:45,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:52:45,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:52:45,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:52:45,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:52:45" (1/3) ... [2023-08-27 04:52:45,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23439550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:52:45, skipping insertion in model container [2023-08-27 04:52:45,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:45" (2/3) ... [2023-08-27 04:52:45,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23439550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:52:45, skipping insertion in model container [2023-08-27 04:52:45,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:52:45" (3/3) ... [2023-08-27 04:52:45,825 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2023-08-27 04:52:45,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:52:45,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-27 04:52:45,836 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:52:45,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 04:52:45,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 78 transitions, 161 flow [2023-08-27 04:52:45,914 INFO L124 PetriNetUnfolderBase]: 4/77 cut-off events. [2023-08-27 04:52:45,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:52:45,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 4/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-27 04:52:45,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 78 transitions, 161 flow [2023-08-27 04:52:45,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 67 transitions, 137 flow [2023-08-27 04:52:45,922 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:52:45,927 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 67 transitions, 137 flow [2023-08-27 04:52:45,929 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 67 transitions, 137 flow [2023-08-27 04:52:45,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 137 flow [2023-08-27 04:52:45,948 INFO L124 PetriNetUnfolderBase]: 2/67 cut-off events. [2023-08-27 04:52:45,948 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:52:45,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-08-27 04:52:45,949 INFO L119 LiptonReduction]: Number of co-enabled transitions 624 [2023-08-27 04:52:47,698 INFO L134 LiptonReduction]: Checked pairs total: 1669 [2023-08-27 04:52:47,698 INFO L136 LiptonReduction]: Total number of compositions: 56 [2023-08-27 04:52:47,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:52:47,711 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;@2c021eba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:52:47,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 04:52:47,713 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:52:47,713 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2023-08-27 04:52:47,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:52:47,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:52:47,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 04:52:47,714 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:52:47,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:52:47,717 INFO L85 PathProgramCache]: Analyzing trace with hash 8349501, now seen corresponding path program 1 times [2023-08-27 04:52:47,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:52:47,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279788468] [2023-08-27 04:52:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:52:47,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:52:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:52:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:52:47,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:52:47,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279788468] [2023-08-27 04:52:47,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279788468] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:52:47,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:52:47,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 04:52:47,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817913007] [2023-08-27 04:52:47,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:52:47,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:52:47,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:52:47,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:52:47,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:52:47,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 134 [2023-08-27 04:52:47,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2023-08-27 04:52:47,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:52:47,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 134 [2023-08-27 04:52:47,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:52:48,033 INFO L124 PetriNetUnfolderBase]: 27/84 cut-off events. [2023-08-27 04:52:48,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:52:48,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 84 events. 27/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 276 event pairs, 17 based on Foata normal form. 4/82 useless extension candidates. Maximal degree in co-relation 152. Up to 44 conditions per place. [2023-08-27 04:52:48,035 INFO L140 encePairwiseOnDemand]: 128/134 looper letters, 15 selfloop transitions, 3 changer transitions 1/21 dead transitions. [2023-08-27 04:52:48,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 83 flow [2023-08-27 04:52:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:52:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:52:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-08-27 04:52:48,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5422885572139303 [2023-08-27 04:52:48,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-08-27 04:52:48,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-08-27 04:52:48,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:52:48,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-08-27 04:52:48,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-08-27 04:52:48,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 04:52:48,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 04:52:48,059 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 37 flow. Second operand 3 states and 218 transitions. [2023-08-27 04:52:48,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 83 flow [2023-08-27 04:52:48,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 21 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 04:52:48,062 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 43 flow [2023-08-27 04:52:48,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-08-27 04:52:48,068 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-08-27 04:52:48,068 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 43 flow [2023-08-27 04:52:48,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2023-08-27 04:52:48,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:52:48,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 04:52:48,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:52:48,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:52:48,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:52:48,069 INFO L85 PathProgramCache]: Analyzing trace with hash -566092845, now seen corresponding path program 1 times [2023-08-27 04:52:48,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:52:48,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684263176] [2023-08-27 04:52:48,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:52:48,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:52:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:52:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:52:48,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:52:48,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684263176] [2023-08-27 04:52:48,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684263176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:52:48,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:52:48,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 04:52:48,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994823137] [2023-08-27 04:52:48,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:52:48,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:52:48,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:52:48,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:52:48,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:52:48,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 134 [2023-08-27 04:52:48,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 43 flow. Second operand 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) [2023-08-27 04:52:48,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:52:48,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 134 [2023-08-27 04:52:48,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:52:48,195 INFO L124 PetriNetUnfolderBase]: 4/36 cut-off events. [2023-08-27 04:52:48,195 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 04:52:48,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 36 events. 4/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 72 event pairs, 0 based on Foata normal form. 9/45 useless extension candidates. Maximal degree in co-relation 71. Up to 20 conditions per place. [2023-08-27 04:52:48,196 INFO L140 encePairwiseOnDemand]: 130/134 looper letters, 15 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2023-08-27 04:52:48,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 91 flow [2023-08-27 04:52:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:52:48,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:52:48,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2023-08-27 04:52:48,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925373134328358 [2023-08-27 04:52:48,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 198 transitions. [2023-08-27 04:52:48,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 198 transitions. [2023-08-27 04:52:48,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:52:48,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 198 transitions. [2023-08-27 04:52:48,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2023-08-27 04:52:48,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 04:52:48,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 04:52:48,205 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 43 flow. Second operand 3 states and 198 transitions. [2023-08-27 04:52:48,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 91 flow [2023-08-27 04:52:48,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 85 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 04:52:48,206 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 53 flow [2023-08-27 04:52:48,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-08-27 04:52:48,206 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-08-27 04:52:48,206 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 53 flow [2023-08-27 04:52:48,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-08-27 04:52:48,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:52:48,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:52:48,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 04:52:48,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:52:48,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:52:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -369112812, now seen corresponding path program 1 times [2023-08-27 04:52:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:52:48,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967626576] [2023-08-27 04:52:48,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:52:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:52:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:52:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:52:48,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:52:48,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967626576] [2023-08-27 04:52:48,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967626576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:52:48,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:52:48,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:52:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414329778] [2023-08-27 04:52:48,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:52:48,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 04:52:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:52:48,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 04:52:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 04:52:48,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 134 [2023-08-27 04:52:48,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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) [2023-08-27 04:52:48,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:52:48,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 134 [2023-08-27 04:52:48,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:52:48,329 INFO L124 PetriNetUnfolderBase]: 9/48 cut-off events. [2023-08-27 04:52:48,330 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 04:52:48,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 48 events. 9/48 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 0 based on Foata normal form. 4/52 useless extension candidates. Maximal degree in co-relation 116. Up to 20 conditions per place. [2023-08-27 04:52:48,330 INFO L140 encePairwiseOnDemand]: 127/134 looper letters, 9 selfloop transitions, 5 changer transitions 8/24 dead transitions. [2023-08-27 04:52:48,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 120 flow [2023-08-27 04:52:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 04:52:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 04:52:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 337 transitions. [2023-08-27 04:52:48,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5029850746268657 [2023-08-27 04:52:48,331 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 337 transitions. [2023-08-27 04:52:48,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 337 transitions. [2023-08-27 04:52:48,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:52:48,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 337 transitions. [2023-08-27 04:52:48,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 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) [2023-08-27 04:52:48,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2023-08-27 04:52:48,334 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2023-08-27 04:52:48,335 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 53 flow. Second operand 5 states and 337 transitions. [2023-08-27 04:52:48,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 120 flow [2023-08-27 04:52:48,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 04:52:48,336 INFO L231 Difference]: Finished difference. Result has 27 places, 15 transitions, 62 flow [2023-08-27 04:52:48,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=62, PETRI_PLACES=27, PETRI_TRANSITIONS=15} [2023-08-27 04:52:48,337 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 7 predicate places. [2023-08-27 04:52:48,339 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 15 transitions, 62 flow [2023-08-27 04:52:48,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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) [2023-08-27 04:52:48,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:52:48,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:52:48,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 04:52:48,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:52:48,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:52:48,340 INFO L85 PathProgramCache]: Analyzing trace with hash -85166429, now seen corresponding path program 1 times [2023-08-27 04:52:48,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:52:48,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341648858] [2023-08-27 04:52:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:52:48,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:52:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:52:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:52:48,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:52:48,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341648858] [2023-08-27 04:52:48,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341648858] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:52:48,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:52:48,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 04:52:48,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144647605] [2023-08-27 04:52:48,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:52:48,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 04:52:48,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:52:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 04:52:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 04:52:48,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 134 [2023-08-27 04:52:48,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 15 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 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) [2023-08-27 04:52:48,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:52:48,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 134 [2023-08-27 04:52:48,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:52:48,479 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-27 04:52:48,479 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 04:52:48,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 9 events. 0/9 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-08-27 04:52:48,479 INFO L140 encePairwiseOnDemand]: 131/134 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-08-27 04:52:48,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 9 transitions, 54 flow [2023-08-27 04:52:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 04:52:48,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 04:52:48,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 221 transitions. [2023-08-27 04:52:48,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4123134328358209 [2023-08-27 04:52:48,480 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 221 transitions. [2023-08-27 04:52:48,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 221 transitions. [2023-08-27 04:52:48,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:52:48,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 221 transitions. [2023-08-27 04:52:48,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 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) [2023-08-27 04:52:48,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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) [2023-08-27 04:52:48,482 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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) [2023-08-27 04:52:48,482 INFO L175 Difference]: Start difference. First operand has 27 places, 15 transitions, 62 flow. Second operand 4 states and 221 transitions. [2023-08-27 04:52:48,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 9 transitions, 54 flow [2023-08-27 04:52:48,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 39 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-27 04:52:48,483 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-08-27 04:52:48,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-08-27 04:52:48,484 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2023-08-27 04:52:48,485 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-08-27 04:52:48,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 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) [2023-08-27 04:52:48,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 04:52:48,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2023-08-27 04:52:48,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-27 04:52:48,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 04:52:48,488 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-27 04:52:48,490 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:52:48,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:52:48,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:52:48 BasicIcfg [2023-08-27 04:52:48,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:52:48,496 INFO L158 Benchmark]: Toolchain (without parser) took 3334.80ms. Allocated memory is still 390.1MB. Free memory was 344.2MB in the beginning and 270.1MB in the end (delta: 74.1MB). Peak memory consumption was 76.2MB. Max. memory is 16.0GB. [2023-08-27 04:52:48,496 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 390.1MB. Free memory was 368.0MB in the beginning and 367.9MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:52:48,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.80ms. Allocated memory is still 390.1MB. Free memory was 344.2MB in the beginning and 325.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 04:52:48,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.15ms. Allocated memory is still 390.1MB. Free memory was 325.3MB in the beginning and 323.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:52:48,497 INFO L158 Benchmark]: Boogie Preprocessor took 19.35ms. Allocated memory is still 390.1MB. Free memory was 323.2MB in the beginning and 322.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:52:48,497 INFO L158 Benchmark]: RCFGBuilder took 249.11ms. Allocated memory is still 390.1MB. Free memory was 322.2MB in the beginning and 307.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 04:52:48,500 INFO L158 Benchmark]: TraceAbstraction took 2672.34ms. Allocated memory is still 390.1MB. Free memory was 306.4MB in the beginning and 270.1MB in the end (delta: 36.3MB). Peak memory consumption was 38.4MB. Max. memory is 16.0GB. [2023-08-27 04:52:48,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 390.1MB. Free memory was 368.0MB in the beginning and 367.9MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 356.80ms. Allocated memory is still 390.1MB. Free memory was 344.2MB in the beginning and 325.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.15ms. Allocated memory is still 390.1MB. Free memory was 325.3MB in the beginning and 323.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.35ms. Allocated memory is still 390.1MB. Free memory was 323.2MB in the beginning and 322.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 249.11ms. Allocated memory is still 390.1MB. Free memory was 322.2MB in the beginning and 307.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2672.34ms. Allocated memory is still 390.1MB. Free memory was 306.4MB in the beginning and 270.1MB in the end (delta: 36.3MB). Peak memory consumption was 38.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 69 PlacesBefore, 20 PlacesAfterwards, 67 TransitionsBefore, 17 TransitionsAfterwards, 624 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1669 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 691, independent: 553, independent conditional: 0, independent unconditional: 553, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 339, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 691, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 339, unknown conditional: 0, unknown unconditional: 339] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 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: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 3 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 04:52:48,515 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...