/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/weaver/test-semi1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 21:00:26,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 21:00:26,217 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 21:00:26,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 21:00:26,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 21:00:26,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 21:00:26,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 21:00:26,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 21:00:26,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 21:00:26,257 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 21:00:26,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 21:00:26,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 21:00:26,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 21:00:26,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 21:00:26,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 21:00:26,259 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 21:00:26,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:00:26,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:00:26,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 21:00:26,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 21:00:26,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 21:00:26,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 21:00:26,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 21:00:26,261 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 21:00:26,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 21:00:26,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 21:00:26,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 21:00:26,472 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 21:00:26,472 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 21:00:26,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c [2025-04-13 21:00:27,729 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60154dfb0/5152709e6840492f9be21a39e2e340dd/FLAGe7a5c54e9 [2025-04-13 21:00:27,900 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 21:00:27,902 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c [2025-04-13 21:00:27,909 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60154dfb0/5152709e6840492f9be21a39e2e340dd/FLAGe7a5c54e9 [2025-04-13 21:00:28,729 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60154dfb0/5152709e6840492f9be21a39e2e340dd [2025-04-13 21:00:28,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 21:00:28,734 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 21:00:28,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 21:00:28,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 21:00:28,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 21:00:28,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:28,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a3aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28, skipping insertion in model container [2025-04-13 21:00:28,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:28,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 21:00:28,907 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c[1821,1834] [2025-04-13 21:00:28,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:00:28,921 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 21:00:28,950 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c[1821,1834] [2025-04-13 21:00:28,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:00:28,961 INFO L204 MainTranslator]: Completed translation [2025-04-13 21:00:28,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28 WrapperNode [2025-04-13 21:00:28,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 21:00:28,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 21:00:28,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 21:00:28,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 21:00:28,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:28,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:28,993 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2025-04-13 21:00:28,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 21:00:28,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 21:00:28,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 21:00:28,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 21:00:29,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,012 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 21:00:29,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,015 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 21:00:29,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 21:00:29,020 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 21:00:29,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 21:00:29,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (1/1) ... [2025-04-13 21:00:29,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:00:29,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:00:29,045 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 21:00:29,047 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 21:00:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 21:00:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 21:00:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 21:00:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 21:00:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 21:00:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 21:00:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 21:00:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 21:00:29,065 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 21:00:29,118 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 21:00:29,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 21:00:29,227 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 21:00:29,228 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 21:00:29,228 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 21:00:29,316 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 21:00:29,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 09:00:29 BoogieIcfgContainer [2025-04-13 21:00:29,317 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 21:00:29,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 21:00:29,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 21:00:29,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 21:00:29,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 09:00:28" (1/3) ... [2025-04-13 21:00:29,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcbd761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:00:29, skipping insertion in model container [2025-04-13 21:00:29,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:28" (2/3) ... [2025-04-13 21:00:29,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcbd761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:00:29, skipping insertion in model container [2025-04-13 21:00:29,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 09:00:29" (3/3) ... [2025-04-13 21:00:29,324 INFO L128 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2025-04-13 21:00:29,336 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 21:00:29,338 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-semi1.wvr.c that has 3 procedures, 20 locations, 17 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 21:00:29,338 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 21:00:29,370 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 21:00:29,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 52 flow [2025-04-13 21:00:29,426 INFO L116 PetriNetUnfolderBase]: 0/17 cut-off events. [2025-04-13 21:00:29,428 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 21:00:29,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 0/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-13 21:00:29,429 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 19 transitions, 52 flow [2025-04-13 21:00:29,435 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 16 transitions, 44 flow [2025-04-13 21:00:29,439 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 21:00:29,451 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;@18717bb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 21:00:29,452 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-13 21:00:29,461 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 21:00:29,462 INFO L116 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-04-13 21:00:29,462 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 21:00:29,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 21:00:29,462 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:00:29,463 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-13 21:00:29,466 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:00:29,467 INFO L85 PathProgramCache]: Analyzing trace with hash -779049295, now seen corresponding path program 1 times [2025-04-13 21:00:29,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:00:29,472 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663052542] [2025-04-13 21:00:29,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:00:29,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:00:29,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-13 21:00:29,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-13 21:00:29,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:00:29,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:00:29,760 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 21:00:29,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:00:29,761 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663052542] [2025-04-13 21:00:29,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663052542] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:00:29,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:00:29,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 21:00:29,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055306440] [2025-04-13 21:00:29,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:00:29,770 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:00:29,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:00:29,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:00:29,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:00:29,799 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 19 [2025-04-13 21:00:29,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 21:00:29,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 21:00:29,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 19 [2025-04-13 21:00:29,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 21:00:29,885 INFO L116 PetriNetUnfolderBase]: 35/86 cut-off events. [2025-04-13 21:00:29,885 INFO L117 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-04-13 21:00:29,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 86 events. 35/86 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 229 event pairs, 10 based on Foata normal form. 1/87 useless extension candidates. Maximal degree in co-relation 143. Up to 30 conditions per place. [2025-04-13 21:00:29,888 INFO L140 encePairwiseOnDemand]: 13/19 looper letters, 12 selfloop transitions, 4 changer transitions 12/29 dead transitions. [2025-04-13 21:00:29,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 29 transitions, 138 flow [2025-04-13 21:00:29,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:00:29,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 21:00:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2025-04-13 21:00:29,898 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5394736842105263 [2025-04-13 21:00:29,899 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 44 flow. Second operand 4 states and 41 transitions. [2025-04-13 21:00:29,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 29 transitions, 138 flow [2025-04-13 21:00:29,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 29 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-13 21:00:29,906 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 52 flow [2025-04-13 21:00:29,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2025-04-13 21:00:29,911 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 0 predicate places. [2025-04-13 21:00:29,911 INFO L485 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 52 flow [2025-04-13 21:00:29,912 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 21:00:29,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 21:00:29,912 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:00:29,912 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 21:00:29,912 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-13 21:00:29,914 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:00:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash 868732009, now seen corresponding path program 2 times [2025-04-13 21:00:29,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:00:29,914 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702786677] [2025-04-13 21:00:29,914 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 21:00:29,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:00:29,921 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-04-13 21:00:29,925 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-13 21:00:29,926 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 21:00:29,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:00:30,014 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 21:00:30,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:00:30,014 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702786677] [2025-04-13 21:00:30,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702786677] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:00:30,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:00:30,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 21:00:30,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332213102] [2025-04-13 21:00:30,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:00:30,015 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:00:30,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:00:30,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:00:30,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:00:30,018 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 19 [2025-04-13 21:00:30,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 21:00:30,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 21:00:30,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 19 [2025-04-13 21:00:30,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 21:00:30,060 INFO L116 PetriNetUnfolderBase]: 12/37 cut-off events. [2025-04-13 21:00:30,060 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-13 21:00:30,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 37 events. 12/37 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 5 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 29. Up to 29 conditions per place. [2025-04-13 21:00:30,060 INFO L140 encePairwiseOnDemand]: 13/19 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2025-04-13 21:00:30,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 84 flow [2025-04-13 21:00:30,061 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:00:30,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 21:00:30,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2025-04-13 21:00:30,061 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3815789473684211 [2025-04-13 21:00:30,061 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 52 flow. Second operand 4 states and 29 transitions. [2025-04-13 21:00:30,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 84 flow [2025-04-13 21:00:30,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-13 21:00:30,062 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2025-04-13 21:00:30,062 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2025-04-13 21:00:30,063 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2025-04-13 21:00:30,063 INFO L485 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2025-04-13 21:00:30,063 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 21:00:30,065 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-13 21:00:30,065 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-13 21:00:30,065 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-13 21:00:30,065 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 21:00:30,065 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-04-13 21:00:30,070 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 21:00:30,070 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 21:00:30,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 09:00:30 BasicIcfg [2025-04-13 21:00:30,073 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 21:00:30,074 INFO L158 Benchmark]: Toolchain (without parser) took 1339.98ms. Allocated memory is still 155.2MB. Free memory was 109.5MB in the beginning and 95.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2025-04-13 21:00:30,074 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:00:30,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.60ms. Allocated memory is still 155.2MB. Free memory was 109.5MB in the beginning and 95.7MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 21:00:30,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.12ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:00:30,078 INFO L158 Benchmark]: Boogie Preprocessor took 25.86ms. Allocated memory is still 155.2MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 21:00:30,078 INFO L158 Benchmark]: RCFGBuilder took 296.47ms. Allocated memory is still 155.2MB. Free memory was 92.7MB in the beginning and 71.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-13 21:00:30,078 INFO L158 Benchmark]: TraceAbstraction took 753.85ms. Allocated memory is still 155.2MB. Free memory was 71.1MB in the beginning and 95.8MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:00:30,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.60ms. Allocated memory is still 155.2MB. Free memory was 109.5MB in the beginning and 95.7MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.12ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 25.86ms. Allocated memory is still 155.2MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 296.47ms. Allocated memory is still 155.2MB. Free memory was 92.7MB in the beginning and 71.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 753.85ms. Allocated memory is still 155.2MB. Free memory was 71.1MB in the beginning and 95.8MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: 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 5 procedures, 30 locations, 29 edges, 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 3 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=1, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 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, 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 21:00:30,094 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...