/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 -i ../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 13:45:52,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 13:45:52,683 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 13:45:52,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 13:45:52,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 13:45:52,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 13:45:52,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 13:45:52,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 13:45:52,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 13:45:52,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 13:45:52,719 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 13:45:52,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 13:45:52,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 13:45:52,721 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 13:45:52,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 13:45:52,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 13:45:52,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 13:45:52,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 13:45:52,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 13:45:52,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 13:45:52,722 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 13:45:52,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 13:45:52,723 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 13:45:52,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 13:45:52,724 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 13:45:52,724 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 13:45:52,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 13:45:52,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 13:45:52,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 13:45:52,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 13:45:52,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 13:45:52,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 13:45:52,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 13:45:52,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 13:45:52,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 13:45:52,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-24 13:45:53,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 13:45:53,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 13:45:53,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 13:45:53,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 13:45:53,038 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 13:45:53,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-08-24 13:45:54,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 13:45:54,324 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 13:45:54,325 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-08-24 13:45:54,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ddbc973/5ae125c5c7b14d75abd5351f9d79d8c5/FLAGdfcaa2f20 [2023-08-24 13:45:54,344 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ddbc973/5ae125c5c7b14d75abd5351f9d79d8c5 [2023-08-24 13:45:54,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 13:45:54,347 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 13:45:54,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 13:45:54,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 13:45:54,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 13:45:54,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2a6746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54, skipping insertion in model container [2023-08-24 13:45:54,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,378 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 13:45:54,499 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[2986,2999] [2023-08-24 13:45:54,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 13:45:54,509 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 13:45:54,527 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[2986,2999] [2023-08-24 13:45:54,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 13:45:54,535 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 13:45:54,536 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 13:45:54,541 INFO L206 MainTranslator]: Completed translation [2023-08-24 13:45:54,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54 WrapperNode [2023-08-24 13:45:54,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 13:45:54,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 13:45:54,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 13:45:54,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 13:45:54,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,583 INFO L138 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 262 [2023-08-24 13:45:54,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 13:45:54,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 13:45:54,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 13:45:54,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 13:45:54,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 13:45:54,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 13:45:54,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 13:45:54,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 13:45:54,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (1/1) ... [2023-08-24 13:45:54,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 13:45:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 13:45:54,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 13:45:54,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 13:45:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 13:45:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 13:45:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 13:45:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 13:45:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 13:45:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 13:45:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 13:45:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 13:45:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 13:45:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 13:45:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 13:45:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 13:45:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 13:45:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 13:45:54,680 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 13:45:54,762 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 13:45:54,764 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 13:45:55,223 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 13:45:55,609 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 13:45:55,609 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 13:45:55,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:45:55 BoogieIcfgContainer [2023-08-24 13:45:55,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 13:45:55,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 13:45:55,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 13:45:55,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 13:45:55,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 01:45:54" (1/3) ... [2023-08-24 13:45:55,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa24310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:45:55, skipping insertion in model container [2023-08-24 13:45:55,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:45:54" (2/3) ... [2023-08-24 13:45:55,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa24310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:45:55, skipping insertion in model container [2023-08-24 13:45:55,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:45:55" (3/3) ... [2023-08-24 13:45:55,619 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2023-08-24 13:45:55,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 13:45:55,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 13:45:55,631 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 13:45:55,717 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 13:45:55,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 246 flow [2023-08-24 13:45:55,795 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2023-08-24 13:45:55,795 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 13:45:55,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 113 events. 3/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2023-08-24 13:45:55,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 115 transitions, 246 flow [2023-08-24 13:45:55,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 105 transitions, 222 flow [2023-08-24 13:45:55,805 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 13:45:55,813 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 105 transitions, 222 flow [2023-08-24 13:45:55,815 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 105 transitions, 222 flow [2023-08-24 13:45:55,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 222 flow [2023-08-24 13:45:55,842 INFO L124 PetriNetUnfolderBase]: 3/105 cut-off events. [2023-08-24 13:45:55,843 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 13:45:55,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 105 events. 3/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-08-24 13:45:55,844 INFO L119 LiptonReduction]: Number of co-enabled transitions 108 [2023-08-24 13:46:02,300 INFO L134 LiptonReduction]: Checked pairs total: 190 [2023-08-24 13:46:02,300 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-24 13:46:02,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 13:46:02,322 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;@742d9e7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 13:46:02,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-24 13:46:02,330 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 13:46:02,330 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-24 13:46:02,330 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 13:46:02,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 13:46:02,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 13:46:02,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 13:46:02,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 13:46:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1471154367, now seen corresponding path program 1 times [2023-08-24 13:46:02,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 13:46:02,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243991844] [2023-08-24 13:46:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 13:46:02,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 13:46:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 13:46:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 13:46:04,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 13:46:04,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243991844] [2023-08-24 13:46:04,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243991844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 13:46:04,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 13:46:04,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 13:46:04,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264425875] [2023-08-24 13:46:04,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 13:46:04,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 13:46:04,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 13:46:04,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 13:46:04,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 13:46:04,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 218 [2023-08-24 13:46:04,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:04,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 13:46:04,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 218 [2023-08-24 13:46:04,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 13:46:05,000 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-24 13:46:05,001 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-24 13:46:05,001 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, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 16 conditions per place. [2023-08-24 13:46:05,003 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 11 selfloop transitions, 1 changer transitions 7/19 dead transitions. [2023-08-24 13:46:05,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 97 flow [2023-08-24 13:46:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 13:46:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 13:46:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2023-08-24 13:46:05,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39908256880733944 [2023-08-24 13:46:05,023 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2023-08-24 13:46:05,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2023-08-24 13:46:05,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 13:46:05,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2023-08-24 13:46:05,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.0) internal successors, (348), 4 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) [2023-08-24 13:46:05,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:05,040 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:05,041 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 4 states and 348 transitions. [2023-08-24 13:46:05,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 97 flow [2023-08-24 13:46:05,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 19 transitions, 83 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 13:46:05,045 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 33 flow [2023-08-24 13:46:05,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=33, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2023-08-24 13:46:05,049 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-24 13:46:05,050 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 33 flow [2023-08-24 13:46:05,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:05,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 13:46:05,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 13:46:05,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 13:46:05,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 13:46:05,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 13:46:05,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1931311065, now seen corresponding path program 2 times [2023-08-24 13:46:05,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 13:46:05,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133755218] [2023-08-24 13:46:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 13:46:05,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 13:46:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 13:46:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 13:46:06,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 13:46:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133755218] [2023-08-24 13:46:06,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133755218] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 13:46:06,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 13:46:06,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 13:46:06,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375125894] [2023-08-24 13:46:06,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 13:46:06,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 13:46:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 13:46:06,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 13:46:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 13:46:06,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 218 [2023-08-24 13:46:06,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 33 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:06,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 13:46:06,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 218 [2023-08-24 13:46:06,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 13:46:07,030 INFO L124 PetriNetUnfolderBase]: 5/23 cut-off events. [2023-08-24 13:46:07,031 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-24 13:46:07,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 23 events. 5/23 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 3 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 57. Up to 15 conditions per place. [2023-08-24 13:46:07,032 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-08-24 13:46:07,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 73 flow [2023-08-24 13:46:07,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 13:46:07,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 13:46:07,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-24 13:46:07,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3944954128440367 [2023-08-24 13:46:07,035 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-24 13:46:07,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-24 13:46:07,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 13:46:07,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-24 13:46:07,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:07,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:07,038 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 218.0) internal successors, (1090), 5 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:07,038 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 33 flow. Second operand 4 states and 344 transitions. [2023-08-24 13:46:07,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 73 flow [2023-08-24 13:46:07,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 13:46:07,039 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-24 13:46:07,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, 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=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-24 13:46:07,040 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-24 13:46:07,040 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-24 13:46:07,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 13:46:07,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-24 13:46:07,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-24 13:46:07,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-24 13:46:07,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 13:46:07,053 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-08-24 13:46:07,059 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 13:46:07,059 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 13:46:07,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 01:46:07 BasicIcfg [2023-08-24 13:46:07,065 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 13:46:07,066 INFO L158 Benchmark]: Toolchain (without parser) took 12719.30ms. Allocated memory was 329.3MB in the beginning and 484.4MB in the end (delta: 155.2MB). Free memory was 306.1MB in the beginning and 195.5MB in the end (delta: 110.6MB). Peak memory consumption was 267.5MB. Max. memory is 16.0GB. [2023-08-24 13:46:07,067 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 329.3MB. Free memory is still 305.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 13:46:07,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.61ms. Allocated memory is still 329.3MB. Free memory was 306.1MB in the beginning and 294.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 13:46:07,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.90ms. Allocated memory is still 329.3MB. Free memory was 294.6MB in the beginning and 292.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 13:46:07,070 INFO L158 Benchmark]: Boogie Preprocessor took 26.09ms. Allocated memory is still 329.3MB. Free memory was 292.1MB in the beginning and 290.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 13:46:07,072 INFO L158 Benchmark]: RCFGBuilder took 1000.72ms. Allocated memory is still 329.3MB. Free memory was 290.0MB in the beginning and 237.7MB in the end (delta: 52.3MB). Peak memory consumption was 54.8MB. Max. memory is 16.0GB. [2023-08-24 13:46:07,072 INFO L158 Benchmark]: TraceAbstraction took 11451.84ms. Allocated memory was 329.3MB in the beginning and 484.4MB in the end (delta: 155.2MB). Free memory was 236.4MB in the beginning and 195.5MB in the end (delta: 41.0MB). Peak memory consumption was 195.9MB. Max. memory is 16.0GB. [2023-08-24 13:46:07,076 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 329.3MB. Free memory is still 305.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 194.61ms. Allocated memory is still 329.3MB. Free memory was 306.1MB in the beginning and 294.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.90ms. Allocated memory is still 329.3MB. Free memory was 294.6MB in the beginning and 292.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.09ms. Allocated memory is still 329.3MB. Free memory was 292.1MB in the beginning and 290.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1000.72ms. Allocated memory is still 329.3MB. Free memory was 290.0MB in the beginning and 237.7MB in the end (delta: 52.3MB). Peak memory consumption was 54.8MB. Max. memory is 16.0GB. * TraceAbstraction took 11451.84ms. Allocated memory was 329.3MB in the beginning and 484.4MB in the end (delta: 155.2MB). Free memory was 236.4MB in the beginning and 195.5MB in the end (delta: 41.0MB). Peak memory consumption was 195.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 109 PlacesBefore, 18 PlacesAfterwards, 105 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 8 FixpointIterations, 82 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 103 TotalNumberOfCompositions, 190 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 190, independent: 190, independent conditional: 0, independent unconditional: 190, 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: 64, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 190, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 64, unknown conditional: 0, unknown unconditional: 64] , 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: 87]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 123 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: 11.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 72 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, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, 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, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 913 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! [2023-08-24 13:46:07,096 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...