/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_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 23:48:03,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 23:48:03,175 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 23:48:03,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 23:48:03,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 23:48:03,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 23:48:03,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 23:48:03,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 23:48:03,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 23:48:03,206 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 23:48:03,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 23:48:03,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 23:48:03,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 23:48:03,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 23:48:03,207 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 23:48:03,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 23:48:03,208 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 23:48:03,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 23:48:03,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 23:48:03,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 23:48:03,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 23:48:03,209 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-13 23:48:03,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 23:48:03,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 23:48:03,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 23:48:03,452 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 23:48:03,453 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 23:48:03,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2025-04-13 23:48:04,681 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa18c54d9/f8c2b40c33a1461d981c1ff5e0cfe7a7/FLAG9a338cbed [2025-04-13 23:48:04,955 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 23:48:04,957 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2025-04-13 23:48:04,971 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa18c54d9/f8c2b40c33a1461d981c1ff5e0cfe7a7/FLAG9a338cbed [2025-04-13 23:48:05,682 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa18c54d9/f8c2b40c33a1461d981c1ff5e0cfe7a7 [2025-04-13 23:48:05,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 23:48:05,685 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 23:48:05,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 23:48:05,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 23:48:05,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 23:48:05,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 11:48:05" (1/1) ... [2025-04-13 23:48:05,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2cf15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:05, skipping insertion in model container [2025-04-13 23:48:05,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 11:48:05" (1/1) ... [2025-04-13 23:48:05,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 23:48:06,097 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/sync01.i[42004,42017] [2025-04-13 23:48:06,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 23:48:06,121 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 23:48:06,164 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/sync01.i[42004,42017] [2025-04-13 23:48:06,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 23:48:06,206 INFO L204 MainTranslator]: Completed translation [2025-04-13 23:48:06,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06 WrapperNode [2025-04-13 23:48:06,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 23:48:06,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 23:48:06,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 23:48:06,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 23:48:06,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,263 INFO L138 Inliner]: procedures = 268, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 252 [2025-04-13 23:48:06,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 23:48:06,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 23:48:06,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 23:48:06,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 23:48:06,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,299 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-04-13 23:48:06,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,311 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 23:48:06,328 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-13 23:48:06,328 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-13 23:48:06,328 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-13 23:48:06,329 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (1/1) ... [2025-04-13 23:48:06,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 23:48:06,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 23:48:06,369 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 23:48:06,371 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 23:48:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-13 23:48:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 23:48:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 23:48:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 23:48:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 23:48:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-13 23:48:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 23:48:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 23:48:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 23:48:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 23:48:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 23:48:06,392 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 23:48:06,530 INFO L256 CfgBuilder]: Building ICFG [2025-04-13 23:48:06,531 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 23:48:06,778 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 23:48:06,780 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 23:48:06,780 INFO L318 CfgBuilder]: Performing block encoding [2025-04-13 23:48:08,696 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 23:48:08,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 11:48:08 BoogieIcfgContainer [2025-04-13 23:48:08,697 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-13 23:48:08,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 23:48:08,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 23:48:08,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 23:48:08,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 11:48:05" (1/3) ... [2025-04-13 23:48:08,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2164fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 11:48:08, skipping insertion in model container [2025-04-13 23:48:08,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 11:48:06" (2/3) ... [2025-04-13 23:48:08,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2164fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 11:48:08, skipping insertion in model container [2025-04-13 23:48:08,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 11:48:08" (3/3) ... [2025-04-13 23:48:08,706 INFO L128 eAbstractionObserver]: Analyzing ICFG sync01.i [2025-04-13 23:48:08,718 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 23:48:08,719 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sync01.i that has 3 procedures, 28 locations, 27 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-13 23:48:08,720 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 23:48:08,764 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 23:48:08,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 29 transitions, 72 flow [2025-04-13 23:48:08,845 INFO L116 PetriNetUnfolderBase]: 2/27 cut-off events. [2025-04-13 23:48:08,847 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 23:48:08,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 27 events. 2/27 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2025-04-13 23:48:08,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 29 transitions, 72 flow [2025-04-13 23:48:08,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 26 transitions, 64 flow [2025-04-13 23:48:08,861 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 23:48:08,871 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;@1328c676, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 23:48:08,871 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-13 23:48:08,958 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 23:48:08,958 INFO L116 PetriNetUnfolderBase]: 2/25 cut-off events. [2025-04-13 23:48:08,958 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 23:48:08,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 23:48:08,959 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] [2025-04-13 23:48:08,960 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 23:48:08,964 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 23:48:08,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1838750032, now seen corresponding path program 1 times [2025-04-13 23:48:08,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 23:48:08,971 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661508967] [2025-04-13 23:48:08,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 23:48:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 23:48:09,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-13 23:48:09,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 23:48:09,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 23:48:09,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 23:48:09,596 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 23:48:09,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 23:48:09,597 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661508967] [2025-04-13 23:48:09,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661508967] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 23:48:09,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 23:48:09,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 23:48:09,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525048227] [2025-04-13 23:48:09,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 23:48:09,606 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 23:48:09,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 23:48:09,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 23:48:09,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 23:48:09,637 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 29 [2025-04-13 23:48:09,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 23:48:09,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 23:48:09,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 29 [2025-04-13 23:48:09,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 23:48:09,740 INFO L116 PetriNetUnfolderBase]: 89/174 cut-off events. [2025-04-13 23:48:09,741 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-13 23:48:09,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 174 events. 89/174 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 573 event pairs, 32 based on Foata normal form. 10/178 useless extension candidates. Maximal degree in co-relation 324. Up to 113 conditions per place. [2025-04-13 23:48:09,745 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 20 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2025-04-13 23:48:09,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 110 flow [2025-04-13 23:48:09,746 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 23:48:09,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 23:48:09,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2025-04-13 23:48:09,755 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2025-04-13 23:48:09,756 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 64 flow. Second operand 3 states and 45 transitions. [2025-04-13 23:48:09,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 110 flow [2025-04-13 23:48:09,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 102 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-13 23:48:09,760 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 58 flow [2025-04-13 23:48:09,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2025-04-13 23:48:09,764 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2025-04-13 23:48:09,764 INFO L485 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 58 flow [2025-04-13 23:48:09,764 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 23:48:09,764 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 23:48:09,764 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] [2025-04-13 23:48:09,764 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 23:48:09,765 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 23:48:09,765 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 23:48:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1148547004, now seen corresponding path program 2 times [2025-04-13 23:48:09,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 23:48:09,765 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312419234] [2025-04-13 23:48:09,765 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 23:48:09,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 23:48:09,916 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-04-13 23:48:09,942 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 23:48:09,942 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 23:48:09,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 23:48:10,137 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 23:48:10,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 23:48:10,138 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312419234] [2025-04-13 23:48:10,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312419234] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 23:48:10,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 23:48:10,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 23:48:10,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819330031] [2025-04-13 23:48:10,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 23:48:10,139 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 23:48:10,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 23:48:10,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 23:48:10,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 23:48:10,147 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2025-04-13 23:48:10,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 23:48:10,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 23:48:10,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2025-04-13 23:48:10,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 23:48:10,291 INFO L116 PetriNetUnfolderBase]: 61/143 cut-off events. [2025-04-13 23:48:10,292 INFO L117 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-04-13 23:48:10,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 143 events. 61/143 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 435 event pairs, 12 based on Foata normal form. 19/161 useless extension candidates. Maximal degree in co-relation 129. Up to 61 conditions per place. [2025-04-13 23:48:10,293 INFO L140 encePairwiseOnDemand]: 19/29 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2025-04-13 23:48:10,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 147 flow [2025-04-13 23:48:10,293 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 23:48:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-13 23:48:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions. [2025-04-13 23:48:10,294 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.41954022988505746 [2025-04-13 23:48:10,294 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 58 flow. Second operand 6 states and 73 transitions. [2025-04-13 23:48:10,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 147 flow [2025-04-13 23:48:10,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-13 23:48:10,295 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2025-04-13 23:48:10,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2025-04-13 23:48:10,296 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2025-04-13 23:48:10,296 INFO L485 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2025-04-13 23:48:10,296 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 23:48:10,298 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-13 23:48:10,299 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-13 23:48:10,299 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-13 23:48:10,299 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 23:48:10,299 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-04-13 23:48:10,303 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 23:48:10,303 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 23:48:10,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 11:48:10 BasicIcfg [2025-04-13 23:48:10,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 23:48:10,310 INFO L158 Benchmark]: Toolchain (without parser) took 4625.16ms. Allocated memory was 155.2MB in the beginning and 385.9MB in the end (delta: 230.7MB). Free memory was 107.6MB in the beginning and 244.8MB in the end (delta: -137.2MB). Peak memory consumption was 92.5MB. Max. memory is 8.0GB. [2025-04-13 23:48:10,310 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 23:48:10,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.55ms. Allocated memory is still 155.2MB. Free memory was 107.6MB in the beginning and 75.2MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2025-04-13 23:48:10,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.55ms. Allocated memory is still 155.2MB. Free memory was 75.2MB in the beginning and 71.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 23:48:10,311 INFO L158 Benchmark]: Boogie Preprocessor took 62.38ms. Allocated memory is still 155.2MB. Free memory was 71.7MB in the beginning and 68.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 23:48:10,311 INFO L158 Benchmark]: IcfgBuilder took 2368.39ms. Allocated memory was 155.2MB in the beginning and 385.9MB in the end (delta: 230.7MB). Free memory was 68.9MB in the beginning and 122.4MB in the end (delta: -53.4MB). Peak memory consumption was 184.9MB. Max. memory is 8.0GB. [2025-04-13 23:48:10,311 INFO L158 Benchmark]: TraceAbstraction took 1611.35ms. Allocated memory is still 385.9MB. Free memory was 121.2MB in the beginning and 244.8MB in the end (delta: -123.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 23:48:10,312 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 85.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 522.55ms. Allocated memory is still 155.2MB. Free memory was 107.6MB in the beginning and 75.2MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.55ms. Allocated memory is still 155.2MB. Free memory was 75.2MB in the beginning and 71.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.38ms. Allocated memory is still 155.2MB. Free memory was 71.7MB in the beginning and 68.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 2368.39ms. Allocated memory was 155.2MB in the beginning and 385.9MB in the end (delta: 230.7MB). Free memory was 68.9MB in the beginning and 122.4MB in the end (delta: -53.4MB). Peak memory consumption was 184.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1611.35ms. Allocated memory is still 385.9MB. Free memory was 121.2MB in the beginning and 244.8MB in the end (delta: -123.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 966]: 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, 48 locations, 51 edges, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 2 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0.4s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 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 23:48:10,326 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...