/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 02:06:59,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 02:06:59,862 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 02:06:59,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 02:06:59,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 02:06:59,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 02:06:59,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 02:06:59,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 02:06:59,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 02:06:59,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 02:06:59,895 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 02:06:59,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 02:06:59,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 02:06:59,899 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 02:06:59,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 02:06:59,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 02:06:59,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 02:06:59,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 02:06:59,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 02:06:59,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 02:06:59,901 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 02:06:59,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 02:06:59,902 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 02:06:59,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 02:06:59,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 02:06:59,903 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 02:06:59,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 02:06:59,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 02:06:59,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 02:06:59,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 02:06:59,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 02:06:59,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 02:06:59,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 02:06:59,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 02:06:59,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 02:06:59,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 02:07:00,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 02:07:00,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 02:07:00,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 02:07:00,290 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 02:07:00,291 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 02:07:00,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2023-08-27 02:07:01,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 02:07:01,635 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 02:07:01,636 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2023-08-27 02:07:01,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d45b02d/aab1f5cf85ec408794d5ab13ed431000/FLAG6f488352b [2023-08-27 02:07:01,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d45b02d/aab1f5cf85ec408794d5ab13ed431000 [2023-08-27 02:07:01,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 02:07:01,658 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 02:07:01,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 02:07:01,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 02:07:01,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 02:07:01,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc6d84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01, skipping insertion in model container [2023-08-27 02:07:01,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,682 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 02:07:01,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 02:07:01,856 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 02:07:01,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 02:07:01,898 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 02:07:01,898 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 02:07:01,904 INFO L206 MainTranslator]: Completed translation [2023-08-27 02:07:01,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01 WrapperNode [2023-08-27 02:07:01,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 02:07:01,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 02:07:01,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 02:07:01,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 02:07:01,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,947 INFO L138 Inliner]: procedures = 23, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-08-27 02:07:01,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 02:07:01,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 02:07:01,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 02:07:01,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 02:07:01,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 02:07:01,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 02:07:01,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 02:07:01,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 02:07:01,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (1/1) ... [2023-08-27 02:07:01,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 02:07:01,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 02:07:02,004 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 02:07:02,033 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 02:07:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 02:07:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 02:07:02,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 02:07:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 02:07:02,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 02:07:02,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 02:07:02,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 02:07:02,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-27 02:07:02,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-27 02:07:02,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 02:07:02,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 02:07:02,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 02:07:02,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 02:07:02,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 02:07:02,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 02:07:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 02:07:02,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 02:07:02,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 02:07:02,058 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 02:07:02,148 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 02:07:02,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 02:07:02,414 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 02:07:02,432 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 02:07:02,432 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-27 02:07:02,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:07:02 BoogieIcfgContainer [2023-08-27 02:07:02,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 02:07:02,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 02:07:02,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 02:07:02,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 02:07:02,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 02:07:01" (1/3) ... [2023-08-27 02:07:02,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f529b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:07:02, skipping insertion in model container [2023-08-27 02:07:02,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:07:01" (2/3) ... [2023-08-27 02:07:02,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f529b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:07:02, skipping insertion in model container [2023-08-27 02:07:02,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:07:02" (3/3) ... [2023-08-27 02:07:02,445 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2023-08-27 02:07:02,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 02:07:02,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 02:07:02,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 02:07:02,578 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-27 02:07:02,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 128 transitions, 288 flow [2023-08-27 02:07:02,685 INFO L124 PetriNetUnfolderBase]: 9/124 cut-off events. [2023-08-27 02:07:02,686 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 02:07:02,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 124 events. 9/124 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 120 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-27 02:07:02,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 128 transitions, 288 flow [2023-08-27 02:07:02,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 111 transitions, 246 flow [2023-08-27 02:07:02,706 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:07:02,720 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 111 transitions, 246 flow [2023-08-27 02:07:02,724 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 111 transitions, 246 flow [2023-08-27 02:07:02,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 111 transitions, 246 flow [2023-08-27 02:07:02,774 INFO L124 PetriNetUnfolderBase]: 9/111 cut-off events. [2023-08-27 02:07:02,774 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 02:07:02,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 111 events. 9/111 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-27 02:07:02,778 INFO L119 LiptonReduction]: Number of co-enabled transitions 3110 [2023-08-27 02:07:04,981 INFO L134 LiptonReduction]: Checked pairs total: 5082 [2023-08-27 02:07:04,982 INFO L136 LiptonReduction]: Total number of compositions: 97 [2023-08-27 02:07:04,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 02:07:04,996 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;@30fa0a83, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:07:04,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-27 02:07:05,023 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:07:05,023 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2023-08-27 02:07:05,024 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 02:07:05,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:07:05,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 02:07:05,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 02:07:05,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:07:05,029 INFO L85 PathProgramCache]: Analyzing trace with hash -218486604, now seen corresponding path program 1 times [2023-08-27 02:07:05,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:07:05,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251457505] [2023-08-27 02:07:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:07:05,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:07:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 02:07:05,625 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 02:07:05,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 02:07:05,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251457505] [2023-08-27 02:07:05,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251457505] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 02:07:05,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 02:07:05,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 02:07:05,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265629376] [2023-08-27 02:07:05,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 02:07:05,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 02:07:05,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 02:07:05,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 02:07:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 02:07:05,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 225 [2023-08-27 02:07:05,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 02:07:05,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 02:07:05,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 225 [2023-08-27 02:07:05,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 02:07:06,000 INFO L124 PetriNetUnfolderBase]: 2135/2897 cut-off events. [2023-08-27 02:07:06,000 INFO L125 PetriNetUnfolderBase]: For 219/219 co-relation queries the response was YES. [2023-08-27 02:07:06,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6052 conditions, 2897 events. 2135/2897 cut-off events. For 219/219 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 11348 event pairs, 621 based on Foata normal form. 1/2220 useless extension candidates. Maximal degree in co-relation 4906. Up to 1323 conditions per place. [2023-08-27 02:07:06,017 INFO L140 encePairwiseOnDemand]: 216/225 looper letters, 53 selfloop transitions, 10 changer transitions 13/76 dead transitions. [2023-08-27 02:07:06,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 76 transitions, 352 flow [2023-08-27 02:07:06,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 02:07:06,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 02:07:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2023-08-27 02:07:06,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5077777777777778 [2023-08-27 02:07:06,031 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2023-08-27 02:07:06,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2023-08-27 02:07:06,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 02:07:06,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2023-08-27 02:07:06,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 02:07:06,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 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 02:07:06,043 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 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 02:07:06,045 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 86 flow. Second operand 4 states and 457 transitions. [2023-08-27 02:07:06,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 76 transitions, 352 flow [2023-08-27 02:07:06,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 76 transitions, 320 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-27 02:07:06,054 INFO L231 Difference]: Finished difference. Result has 38 places, 41 transitions, 148 flow [2023-08-27 02:07:06,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=38, PETRI_TRANSITIONS=41} [2023-08-27 02:07:06,058 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-08-27 02:07:06,059 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 41 transitions, 148 flow [2023-08-27 02:07:06,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 02:07:06,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:07:06,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 02:07:06,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 02:07:06,060 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 02:07:06,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:07:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1453098410, now seen corresponding path program 2 times [2023-08-27 02:07:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:07:06,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689602417] [2023-08-27 02:07:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:07:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:07:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 02:07:06,323 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 02:07:06,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 02:07:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689602417] [2023-08-27 02:07:06,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689602417] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 02:07:06,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 02:07:06,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 02:07:06,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900577504] [2023-08-27 02:07:06,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 02:07:06,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 02:07:06,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 02:07:06,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 02:07:06,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 02:07:06,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 225 [2023-08-27 02:07:06,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 41 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 02:07:06,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 02:07:06,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 225 [2023-08-27 02:07:06,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 02:07:06,630 INFO L124 PetriNetUnfolderBase]: 2485/3419 cut-off events. [2023-08-27 02:07:06,631 INFO L125 PetriNetUnfolderBase]: For 1928/1928 co-relation queries the response was YES. [2023-08-27 02:07:06,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9072 conditions, 3419 events. 2485/3419 cut-off events. For 1928/1928 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 14123 event pairs, 756 based on Foata normal form. 1/3420 useless extension candidates. Maximal degree in co-relation 2724. Up to 1916 conditions per place. [2023-08-27 02:07:06,641 INFO L140 encePairwiseOnDemand]: 216/225 looper letters, 0 selfloop transitions, 0 changer transitions 93/93 dead transitions. [2023-08-27 02:07:06,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 93 transitions, 512 flow [2023-08-27 02:07:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 02:07:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 02:07:06,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2023-08-27 02:07:06,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-27 02:07:06,645 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 456 transitions. [2023-08-27 02:07:06,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 456 transitions. [2023-08-27 02:07:06,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 02:07:06,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 456 transitions. [2023-08-27 02:07:06,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 02:07:06,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 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 02:07:06,649 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 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 02:07:06,649 INFO L175 Difference]: Start difference. First operand has 38 places, 41 transitions, 148 flow. Second operand 4 states and 456 transitions. [2023-08-27 02:07:06,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 93 transitions, 512 flow [2023-08-27 02:07:06,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 93 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 02:07:06,653 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-27 02:07:06,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-08-27 02:07:06,653 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-27 02:07:06,654 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-27 02:07:06,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 02:07:06,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2023-08-27 02:07:06,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-08-27 02:07:06,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-27 02:07:06,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-27 02:07:06,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-27 02:07:06,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 02:07:06,658 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-08-27 02:07:06,661 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 02:07:06,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 02:07:06,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 02:07:06 BasicIcfg [2023-08-27 02:07:06,664 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 02:07:06,664 INFO L158 Benchmark]: Toolchain (without parser) took 5006.86ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 355.5MB in the beginning and 279.8MB in the end (delta: 75.6MB). Peak memory consumption was 154.9MB. Max. memory is 16.0GB. [2023-08-27 02:07:06,665 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory was 357.3MB in the beginning and 357.2MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 02:07:06,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.62ms. Allocated memory is still 379.6MB. Free memory was 355.5MB in the beginning and 343.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 02:07:06,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.77ms. Allocated memory is still 379.6MB. Free memory was 343.9MB in the beginning and 342.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 02:07:06,666 INFO L158 Benchmark]: Boogie Preprocessor took 27.00ms. Allocated memory is still 379.6MB. Free memory was 342.4MB in the beginning and 340.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 02:07:06,666 INFO L158 Benchmark]: RCFGBuilder took 460.37ms. Allocated memory is still 379.6MB. Free memory was 340.7MB in the beginning and 325.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-27 02:07:06,667 INFO L158 Benchmark]: TraceAbstraction took 4224.88ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 324.5MB in the beginning and 279.8MB in the end (delta: 44.7MB). Peak memory consumption was 123.4MB. Max. memory is 16.0GB. [2023-08-27 02:07:06,669 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory was 357.3MB in the beginning and 357.2MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 246.62ms. Allocated memory is still 379.6MB. Free memory was 355.5MB in the beginning and 343.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.77ms. Allocated memory is still 379.6MB. Free memory was 343.9MB in the beginning and 342.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 27.00ms. Allocated memory is still 379.6MB. Free memory was 342.4MB in the beginning and 340.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 460.37ms. Allocated memory is still 379.6MB. Free memory was 340.7MB in the beginning and 325.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4224.88ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 324.5MB in the beginning and 279.8MB in the end (delta: 44.7MB). Peak memory consumption was 123.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 115 PlacesBefore, 40 PlacesAfterwards, 111 TransitionsBefore, 31 TransitionsAfterwards, 3110 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 13 ConcurrentYvCompositions, 5 ChoiceCompositions, 97 TotalNumberOfCompositions, 5082 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3264, independent: 3164, independent conditional: 0, independent unconditional: 3164, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1727, independent: 1690, independent conditional: 0, independent unconditional: 1690, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3264, independent: 1474, independent conditional: 0, independent unconditional: 1474, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 1727, unknown conditional: 0, unknown unconditional: 1727] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 106, Positive conditional cache size: 0, Positive unconditional cache size: 106, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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 9 procedures, 166 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 18 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=1, InterpolantAutomatonStates: 8, 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, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 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 02:07:06,691 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...