/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 PROGRAM_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/weaver/security.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 15:18:34,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 15:18:34,740 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 15:18:34,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 15:18:34,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 15:18:34,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 15:18:34,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 15:18:34,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 15:18:34,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 15:18:34,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 15:18:34,782 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 15:18:34,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 15:18:34,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 15:18:34,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 15:18:34,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 15:18:34,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 15:18:34,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 15:18:34,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 15:18:34,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 15:18:34,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 15:18:34,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 15:18:34,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 15:18:34,784 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 15:18:34,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 15:18:34,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 15:18:34,785 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 15:18:34,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 15:18:34,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 15:18:34,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 15:18:34,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 15:18:34,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 15:18:34,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 15:18:34,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 15:18:34,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 15:18:34,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 15:18:34,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 15:18:35,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 15:18:35,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 15:18:35,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 15:18:35,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 15:18:35,038 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 15:18:35,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/security.wvr.c [2023-08-27 15:18:35,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 15:18:36,101 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 15:18:36,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c [2023-08-27 15:18:36,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93433f7d/d6ca0cb6052c48c0b966b7291225fd77/FLAG42cdec55c [2023-08-27 15:18:36,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93433f7d/d6ca0cb6052c48c0b966b7291225fd77 [2023-08-27 15:18:36,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 15:18:36,123 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 15:18:36,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 15:18:36,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 15:18:36,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 15:18:36,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4624a2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36, skipping insertion in model container [2023-08-27 15:18:36,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,143 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 15:18:36,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 15:18:36,264 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 15:18:36,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 15:18:36,305 INFO L206 MainTranslator]: Completed translation [2023-08-27 15:18:36,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36 WrapperNode [2023-08-27 15:18:36,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 15:18:36,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 15:18:36,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 15:18:36,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 15:18:36,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,333 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-08-27 15:18:36,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 15:18:36,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 15:18:36,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 15:18:36,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 15:18:36,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 15:18:36,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 15:18:36,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 15:18:36,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 15:18:36,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (1/1) ... [2023-08-27 15:18:36,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 15:18:36,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 15:18:36,386 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 15:18:36,405 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 15:18:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 15:18:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 15:18:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 15:18:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 15:18:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 15:18:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 15:18:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 15:18:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 15:18:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 15:18:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 15:18:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 15:18:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 15:18:36,418 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 15:18:36,500 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 15:18:36,501 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 15:18:36,667 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 15:18:36,671 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 15:18:36,671 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 15:18:36,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:18:36 BoogieIcfgContainer [2023-08-27 15:18:36,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 15:18:36,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 15:18:36,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 15:18:36,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 15:18:36,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:18:36" (1/3) ... [2023-08-27 15:18:36,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5afebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:18:36, skipping insertion in model container [2023-08-27 15:18:36,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:18:36" (2/3) ... [2023-08-27 15:18:36,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5afebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:18:36, skipping insertion in model container [2023-08-27 15:18:36,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:18:36" (3/3) ... [2023-08-27 15:18:36,678 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2023-08-27 15:18:36,691 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 15:18:36,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 15:18:36,691 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 15:18:36,735 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 15:18:36,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 80 transitions, 176 flow [2023-08-27 15:18:36,792 INFO L124 PetriNetUnfolderBase]: 3/78 cut-off events. [2023-08-27 15:18:36,792 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 15:18:36,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 3/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2023-08-27 15:18:36,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 80 transitions, 176 flow [2023-08-27 15:18:36,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 69 transitions, 150 flow [2023-08-27 15:18:36,800 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 15:18:36,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 69 transitions, 150 flow [2023-08-27 15:18:36,808 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 69 transitions, 150 flow [2023-08-27 15:18:36,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 150 flow [2023-08-27 15:18:36,825 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2023-08-27 15:18:36,825 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 15:18:36,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 69 events. 3/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2023-08-27 15:18:36,826 INFO L119 LiptonReduction]: Number of co-enabled transitions 572 [2023-08-27 15:18:38,671 INFO L134 LiptonReduction]: Checked pairs total: 570 [2023-08-27 15:18:38,671 INFO L136 LiptonReduction]: Total number of compositions: 70 [2023-08-27 15:18:38,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 15:18:38,685 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;@5bddcc62, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 15:18:38,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 15:18:38,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 15:18:38,689 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-27 15:18:38,689 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 15:18:38,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:18:38,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 15:18:38,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 15:18:38,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:18:38,692 INFO L85 PathProgramCache]: Analyzing trace with hash 657719404, now seen corresponding path program 1 times [2023-08-27 15:18:38,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:18:38,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156036498] [2023-08-27 15:18:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:18:38,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:18:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:18:39,198 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 15:18:39,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:18:39,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156036498] [2023-08-27 15:18:39,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156036498] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:18:39,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:18:39,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 15:18:39,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271687533] [2023-08-27 15:18:39,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:18:39,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 15:18:39,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:18:39,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 15:18:39,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 15:18:39,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 150 [2023-08-27 15:18:39,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 15:18:39,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:18:39,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 150 [2023-08-27 15:18:39,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:18:39,280 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-27 15:18:39,280 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 15:18:39,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 16 conditions per place. [2023-08-27 15:18:39,293 INFO L140 encePairwiseOnDemand]: 146/150 looper letters, 10 selfloop transitions, 3 changer transitions 8/21 dead transitions. [2023-08-27 15:18:39,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 105 flow [2023-08-27 15:18:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 15:18:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 15:18:39,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions. [2023-08-27 15:18:39,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.476 [2023-08-27 15:18:39,303 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 357 transitions. [2023-08-27 15:18:39,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 357 transitions. [2023-08-27 15:18:39,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:18:39,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 357 transitions. [2023-08-27 15:18:39,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 15:18:39,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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 15:18:39,311 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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 15:18:39,312 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 5 states and 357 transitions. [2023-08-27 15:18:39,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 105 flow [2023-08-27 15:18:39,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 21 transitions, 91 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 15:18:39,315 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 34 flow [2023-08-27 15:18:39,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=34, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2023-08-27 15:18:39,318 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-27 15:18:39,318 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 34 flow [2023-08-27 15:18:39,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 15:18:39,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:18:39,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 15:18:39,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 15:18:39,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 15:18:39,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:18:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2122124164, now seen corresponding path program 2 times [2023-08-27 15:18:39,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:18:39,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307913139] [2023-08-27 15:18:39,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:18:39,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:18:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:18:39,514 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 15:18:39,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:18:39,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307913139] [2023-08-27 15:18:39,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307913139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:18:39,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:18:39,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 15:18:39,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044886039] [2023-08-27 15:18:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:18:39,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 15:18:39,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:18:39,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 15:18:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 15:18:39,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 150 [2023-08-27 15:18:39,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 15:18:39,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:18:39,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 150 [2023-08-27 15:18:39,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:18:39,558 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-08-27 15:18:39,558 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 15:18:39,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 35. Up to 6 conditions per place. [2023-08-27 15:18:39,559 INFO L140 encePairwiseOnDemand]: 146/150 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2023-08-27 15:18:39,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 58 flow [2023-08-27 15:18:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 15:18:39,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 15:18:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 348 transitions. [2023-08-27 15:18:39,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.464 [2023-08-27 15:18:39,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 348 transitions. [2023-08-27 15:18:39,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 348 transitions. [2023-08-27 15:18:39,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:18:39,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 348 transitions. [2023-08-27 15:18:39,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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 15:18:39,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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 15:18:39,564 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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 15:18:39,564 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 34 flow. Second operand 5 states and 348 transitions. [2023-08-27 15:18:39,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 58 flow [2023-08-27 15:18:39,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 12 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 15:18:39,564 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-27 15:18:39,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-27 15:18:39,565 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-27 15:18:39,565 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-27 15:18:39,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 15:18:39,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 15:18:39,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-27 15:18:39,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-27 15:18:39,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 15:18:39,568 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-08-27 15:18:39,570 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 15:18:39,570 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 15:18:39,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:18:39 BasicIcfg [2023-08-27 15:18:39,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 15:18:39,573 INFO L158 Benchmark]: Toolchain (without parser) took 3449.49ms. Allocated memory was 335.5MB in the beginning and 402.7MB in the end (delta: 67.1MB). Free memory was 310.8MB in the beginning and 280.3MB in the end (delta: 30.5MB). Peak memory consumption was 100.7MB. Max. memory is 16.0GB. [2023-08-27 15:18:39,573 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 335.5MB. Free memory is still 312.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 15:18:39,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.31ms. Allocated memory is still 335.5MB. Free memory was 310.8MB in the beginning and 300.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 15:18:39,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.26ms. Allocated memory is still 335.5MB. Free memory was 300.2MB in the beginning and 298.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 15:18:39,574 INFO L158 Benchmark]: Boogie Preprocessor took 27.03ms. Allocated memory is still 335.5MB. Free memory was 298.6MB in the beginning and 297.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 15:18:39,574 INFO L158 Benchmark]: RCFGBuilder took 311.27ms. Allocated memory is still 335.5MB. Free memory was 297.4MB in the beginning and 284.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 15:18:39,574 INFO L158 Benchmark]: TraceAbstraction took 2898.00ms. Allocated memory was 335.5MB in the beginning and 402.7MB in the end (delta: 67.1MB). Free memory was 284.0MB in the beginning and 280.3MB in the end (delta: 3.8MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. [2023-08-27 15:18:39,576 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 335.5MB. Free memory is still 312.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 180.31ms. Allocated memory is still 335.5MB. Free memory was 310.8MB in the beginning and 300.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.26ms. Allocated memory is still 335.5MB. Free memory was 300.2MB in the beginning and 298.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.03ms. Allocated memory is still 335.5MB. Free memory was 298.6MB in the beginning and 297.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 311.27ms. Allocated memory is still 335.5MB. Free memory was 297.4MB in the beginning and 284.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2898.00ms. Allocated memory was 335.5MB in the beginning and 402.7MB in the end (delta: 67.1MB). Free memory was 284.0MB in the beginning and 280.3MB in the end (delta: 3.8MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 73 PlacesBefore, 18 PlacesAfterwards, 69 TransitionsBefore, 11 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 70 TotalNumberOfCompositions, 570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 570, independent: 570, independent conditional: 0, independent unconditional: 570, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 354, independent: 354, independent conditional: 0, independent unconditional: 354, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 570, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 354, unknown conditional: 0, unknown unconditional: 354] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 21]: 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 5 procedures, 102 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: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.6s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 15:18:39,595 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...