/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:35:53,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:35:53,543 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:35:53,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:35:53,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:35:53,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:35:53,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:35:53,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:35:53,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:35:53,575 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:35:53,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:35:53,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:35:53,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:35:53,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:35:53,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:35:53,577 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:35:53,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:35:53,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:35:53,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:35:53,578 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:35:53,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:35:53,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:35:53,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:35:53,816 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:35:53,818 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:35:53,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2025-04-13 19:35:55,148 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24dba00a/59fc032fc562422296252e5ee0285985/FLAG6522ab6a7 [2025-04-13 19:35:55,418 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:35:55,419 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2025-04-13 19:35:55,433 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24dba00a/59fc032fc562422296252e5ee0285985/FLAG6522ab6a7 [2025-04-13 19:35:56,198 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24dba00a/59fc032fc562422296252e5ee0285985 [2025-04-13 19:35:56,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:35:56,201 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:35:56,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:35:56,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:35:56,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:35:56,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4779e315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56, skipping insertion in model container [2025-04-13 19:35:56,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:35:56,396 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.i[945,958] [2025-04-13 19:35:56,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:35:56,501 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:35:56,518 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.i[945,958] [2025-04-13 19:35:56,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:35:56,591 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:35:56,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56 WrapperNode [2025-04-13 19:35:56,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:35:56,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:35:56,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:35:56,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:35:56,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,629 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2025-04-13 19:35:56,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:35:56,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:35:56,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:35:56,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:35:56,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,654 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-04-13 19:35:56,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,657 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:35:56,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:35:56,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:35:56,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:35:56,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (1/1) ... [2025-04-13 19:35:56,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:35:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:35:56,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-13 19:35:56,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-13 19:35:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 19:35:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:35:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-13 19:35:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-13 19:35:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-13 19:35:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-13 19:35:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-13 19:35:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-13 19:35:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:35:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 19:35:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:35:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:35:56,708 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:35:56,803 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:35:56,804 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:35:56,901 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:35:56,902 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:35:56,902 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:35:56,995 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 19:35:56,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:35:56 BoogieIcfgContainer [2025-04-13 19:35:56,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:35:56,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:35:56,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:35:57,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:35:57,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:35:56" (1/3) ... [2025-04-13 19:35:57,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39db06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:35:57, skipping insertion in model container [2025-04-13 19:35:57,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:35:56" (2/3) ... [2025-04-13 19:35:57,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39db06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:35:57, skipping insertion in model container [2025-04-13 19:35:57,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:35:56" (3/3) ... [2025-04-13 19:35:57,002 INFO L128 eAbstractionObserver]: Analyzing ICFG safe003_tso.i [2025-04-13 19:35:57,013 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:35:57,014 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe003_tso.i that has 4 procedures, 35 locations, 31 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 19:35:57,015 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:35:57,057 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-13 19:35:57,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 34 transitions, 80 flow [2025-04-13 19:35:57,113 INFO L116 PetriNetUnfolderBase]: 0/31 cut-off events. [2025-04-13 19:35:57,114 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:35:57,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-13 19:35:57,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 34 transitions, 80 flow [2025-04-13 19:35:57,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 30 transitions, 69 flow [2025-04-13 19:35:57,122 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:35:57,130 INFO L340 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7323bf43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:35:57,131 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-13 19:35:57,137 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:35:57,138 INFO L116 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-04-13 19:35:57,138 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:35:57,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:57,138 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:57,139 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 19:35:57,143 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:57,143 INFO L85 PathProgramCache]: Analyzing trace with hash 250654454, now seen corresponding path program 1 times [2025-04-13 19:35:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:57,147 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270967100] [2025-04-13 19:35:57,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:57,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:57,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 19:35:57,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 19:35:57,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:57,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:57,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:57,522 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270967100] [2025-04-13 19:35:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270967100] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:57,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:57,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 19:35:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089889213] [2025-04-13 19:35:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:57,530 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 19:35:57,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:57,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 19:35:57,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 19:35:57,559 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2025-04-13 19:35:57,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-04-13 19:35:57,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:57,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2025-04-13 19:35:57,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:57,711 INFO L116 PetriNetUnfolderBase]: 291/539 cut-off events. [2025-04-13 19:35:57,711 INFO L117 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-04-13 19:35:57,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 539 events. 291/539 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2721 event pairs, 58 based on Foata normal form. 27/558 useless extension candidates. Maximal degree in co-relation 1034. Up to 236 conditions per place. [2025-04-13 19:35:57,718 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 25 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2025-04-13 19:35:57,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 167 flow [2025-04-13 19:35:57,719 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 19:35:57,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 19:35:57,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-04-13 19:35:57,729 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7426470588235294 [2025-04-13 19:35:57,730 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 69 flow. Second operand 4 states and 101 transitions. [2025-04-13 19:35:57,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 167 flow [2025-04-13 19:35:57,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-13 19:35:57,738 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 100 flow [2025-04-13 19:35:57,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2025-04-13 19:35:57,741 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2025-04-13 19:35:57,741 INFO L485 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 100 flow [2025-04-13 19:35:57,741 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-04-13 19:35:57,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:57,742 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:57,742 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:35:57,742 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 19:35:57,743 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:57,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1612671884, now seen corresponding path program 1 times [2025-04-13 19:35:57,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:57,743 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947826491] [2025-04-13 19:35:57,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:57,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:57,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-13 19:35:57,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-13 19:35:57,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:57,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:57,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:57,939 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947826491] [2025-04-13 19:35:57,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947826491] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:57,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:57,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:35:57,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399681394] [2025-04-13 19:35:57,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:57,940 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 19:35:57,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:57,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 19:35:57,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 19:35:57,945 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2025-04-13 19:35:57,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2025-04-13 19:35:57,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:57,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2025-04-13 19:35:57,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:58,072 INFO L116 PetriNetUnfolderBase]: 249/466 cut-off events. [2025-04-13 19:35:58,072 INFO L117 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2025-04-13 19:35:58,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 466 events. 249/466 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2106 event pairs, 15 based on Foata normal form. 26/485 useless extension candidates. Maximal degree in co-relation 1132. Up to 188 conditions per place. [2025-04-13 19:35:58,078 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 8 changer transitions 1/54 dead transitions. [2025-04-13 19:35:58,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 243 flow [2025-04-13 19:35:58,079 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 19:35:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-13 19:35:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-04-13 19:35:58,080 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7470588235294118 [2025-04-13 19:35:58,080 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 100 flow. Second operand 5 states and 127 transitions. [2025-04-13 19:35:58,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 243 flow [2025-04-13 19:35:58,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 233 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-13 19:35:58,082 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 140 flow [2025-04-13 19:35:58,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2025-04-13 19:35:58,082 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-04-13 19:35:58,082 INFO L485 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 140 flow [2025-04-13 19:35:58,083 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2025-04-13 19:35:58,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:58,083 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:58,083 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:35:58,083 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 19:35:58,084 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash -66324820, now seen corresponding path program 1 times [2025-04-13 19:35:58,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:58,085 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132663140] [2025-04-13 19:35:58,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:58,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:58,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 19:35:58,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 19:35:58,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:58,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:58,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:58,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:58,245 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132663140] [2025-04-13 19:35:58,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132663140] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:58,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:58,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 19:35:58,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405051898] [2025-04-13 19:35:58,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:58,246 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:35:58,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:58,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:35:58,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:35:58,253 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2025-04-13 19:35:58,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2025-04-13 19:35:58,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:58,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2025-04-13 19:35:58,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:58,376 INFO L116 PetriNetUnfolderBase]: 174/325 cut-off events. [2025-04-13 19:35:58,377 INFO L117 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2025-04-13 19:35:58,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 325 events. 174/325 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1138 event pairs, 6 based on Foata normal form. 20/338 useless extension candidates. Maximal degree in co-relation 910. Up to 108 conditions per place. [2025-04-13 19:35:58,380 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 29 selfloop transitions, 11 changer transitions 1/55 dead transitions. [2025-04-13 19:35:58,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 270 flow [2025-04-13 19:35:58,381 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 19:35:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-13 19:35:58,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2025-04-13 19:35:58,382 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7107843137254902 [2025-04-13 19:35:58,382 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 140 flow. Second operand 6 states and 145 transitions. [2025-04-13 19:35:58,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 270 flow [2025-04-13 19:35:58,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 245 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-04-13 19:35:58,385 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 154 flow [2025-04-13 19:35:58,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2025-04-13 19:35:58,385 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2025-04-13 19:35:58,385 INFO L485 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 154 flow [2025-04-13 19:35:58,386 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2025-04-13 19:35:58,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:58,386 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:58,386 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 19:35:58,386 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 19:35:58,386 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:58,386 INFO L85 PathProgramCache]: Analyzing trace with hash -167064122, now seen corresponding path program 1 times [2025-04-13 19:35:58,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:58,387 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716786821] [2025-04-13 19:35:58,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:35:58,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:58,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-13 19:35:58,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-13 19:35:58,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:35:58,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:58,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:58,522 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716786821] [2025-04-13 19:35:58,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716786821] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:58,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:58,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 19:35:58,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734785584] [2025-04-13 19:35:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:58,523 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:35:58,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:58,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:35:58,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:35:58,533 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2025-04-13 19:35:58,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2025-04-13 19:35:58,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:58,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2025-04-13 19:35:58,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:58,821 INFO L116 PetriNetUnfolderBase]: 724/1513 cut-off events. [2025-04-13 19:35:58,821 INFO L117 PetriNetUnfolderBase]: For 969/977 co-relation queries the response was YES. [2025-04-13 19:35:58,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 1513 events. 724/1513 cut-off events. For 969/977 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9975 event pairs, 163 based on Foata normal form. 32/1440 useless extension candidates. Maximal degree in co-relation 3615. Up to 317 conditions per place. [2025-04-13 19:35:58,827 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 22 selfloop transitions, 6 changer transitions 48/94 dead transitions. [2025-04-13 19:35:58,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 94 transitions, 460 flow [2025-04-13 19:35:58,827 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-13 19:35:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-13 19:35:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 245 transitions. [2025-04-13 19:35:58,829 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6550802139037433 [2025-04-13 19:35:58,829 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 154 flow. Second operand 11 states and 245 transitions. [2025-04-13 19:35:58,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 94 transitions, 460 flow [2025-04-13 19:35:58,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 94 transitions, 372 flow, removed 26 selfloop flow, removed 8 redundant places. [2025-04-13 19:35:58,839 INFO L231 Difference]: Finished difference. Result has 61 places, 39 transitions, 160 flow [2025-04-13 19:35:58,839 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=160, PETRI_PLACES=61, PETRI_TRANSITIONS=39} [2025-04-13 19:35:58,840 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 21 predicate places. [2025-04-13 19:35:58,840 INFO L485 AbstractCegarLoop]: Abstraction has has 61 places, 39 transitions, 160 flow [2025-04-13 19:35:58,840 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2025-04-13 19:35:58,840 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:35:58,840 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:35:58,840 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 19:35:58,840 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 19:35:58,841 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:35:58,841 INFO L85 PathProgramCache]: Analyzing trace with hash -589963918, now seen corresponding path program 2 times [2025-04-13 19:35:58,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:35:58,841 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970488769] [2025-04-13 19:35:58,841 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 19:35:58,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:35:58,851 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes. [2025-04-13 19:35:58,858 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-13 19:35:58,859 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 19:35:58,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:35:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:35:58,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:35:58,976 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970488769] [2025-04-13 19:35:58,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970488769] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:35:58,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:35:58,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:35:58,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247919549] [2025-04-13 19:35:58,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:35:58,977 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:35:58,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:35:58,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:35:58,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:35:58,987 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2025-04-13 19:35:58,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 39 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2025-04-13 19:35:58,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:35:58,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2025-04-13 19:35:58,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:35:59,067 INFO L116 PetriNetUnfolderBase]: 258/578 cut-off events. [2025-04-13 19:35:59,067 INFO L117 PetriNetUnfolderBase]: For 331/333 co-relation queries the response was YES. [2025-04-13 19:35:59,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1361 conditions, 578 events. 258/578 cut-off events. For 331/333 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3214 event pairs, 117 based on Foata normal form. 8/539 useless extension candidates. Maximal degree in co-relation 1349. Up to 225 conditions per place. [2025-04-13 19:35:59,070 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2025-04-13 19:35:59,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 48 transitions, 236 flow [2025-04-13 19:35:59,070 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 19:35:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-13 19:35:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2025-04-13 19:35:59,071 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5823529411764706 [2025-04-13 19:35:59,071 INFO L175 Difference]: Start difference. First operand has 61 places, 39 transitions, 160 flow. Second operand 5 states and 99 transitions. [2025-04-13 19:35:59,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 48 transitions, 236 flow [2025-04-13 19:35:59,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 218 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-04-13 19:35:59,072 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2025-04-13 19:35:59,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2025-04-13 19:35:59,075 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 13 predicate places. [2025-04-13 19:35:59,075 INFO L485 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2025-04-13 19:35:59,075 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2025-04-13 19:35:59,078 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-13 19:35:59,078 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-13 19:35:59,078 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-13 19:35:59,078 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-13 19:35:59,078 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 19:35:59,079 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-04-13 19:35:59,083 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:35:59,083 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:35:59,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:35:59 BasicIcfg [2025-04-13 19:35:59,087 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:35:59,087 INFO L158 Benchmark]: Toolchain (without parser) took 2886.42ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 29.7MB in the end (delta: 80.3MB). Peak memory consumption was 79.8MB. Max. memory is 8.0GB. [2025-04-13 19:35:59,088 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:35:59,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.22ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 86.9MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-13 19:35:59,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.31ms. Allocated memory is still 155.2MB. Free memory was 86.9MB in the beginning and 84.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 19:35:59,088 INFO L158 Benchmark]: Boogie Preprocessor took 33.74ms. Allocated memory is still 155.2MB. Free memory was 84.7MB in the beginning and 83.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:35:59,088 INFO L158 Benchmark]: RCFGBuilder took 331.38ms. Allocated memory is still 155.2MB. Free memory was 83.3MB in the beginning and 61.0MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 19:35:59,089 INFO L158 Benchmark]: TraceAbstraction took 2090.52ms. Allocated memory is still 155.2MB. Free memory was 60.3MB in the beginning and 29.7MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2025-04-13 19:35:59,090 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.22ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 86.9MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.31ms. Allocated memory is still 155.2MB. Free memory was 86.9MB in the beginning and 84.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.74ms. Allocated memory is still 155.2MB. Free memory was 84.7MB in the beginning and 83.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 331.38ms. Allocated memory is still 155.2MB. Free memory was 83.3MB in the beginning and 61.0MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 2090.52ms. Allocated memory is still 155.2MB. Free memory was 60.3MB in the beginning and 29.7MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 59 locations, 55 edges, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 352 IncrementalHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 9 mSDtfsCounter, 352 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 19:35:59,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...