/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-easy7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 21:00:13,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 21:00:13,453 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 21:00:13,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 21:00:13,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 21:00:13,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 21:00:13,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 21:00:13,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 21:00:13,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 21:00:13,472 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 21:00:13,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 21:00:13,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 21:00:13,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 21:00:13,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 21:00:13,472 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 21:00:13,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 21:00:13,473 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:00:13,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:00:13,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:00:13,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 21:00:13,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 21:00:13,474 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 21:00:13,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 21:00:13,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 21:00:13,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 21:00:13,694 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 21:00:13,694 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 21:00:13,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2025-04-13 21:00:14,967 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f595ab9d/28f60a9091fa43b68839fd845e4783c6/FLAGd724d764c [2025-04-13 21:00:15,152 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 21:00:15,153 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2025-04-13 21:00:15,160 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f595ab9d/28f60a9091fa43b68839fd845e4783c6/FLAGd724d764c [2025-04-13 21:00:16,017 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f595ab9d/28f60a9091fa43b68839fd845e4783c6 [2025-04-13 21:00:16,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 21:00:16,021 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 21:00:16,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 21:00:16,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 21:00:16,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 21:00:16,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b86c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16, skipping insertion in model container [2025-04-13 21:00:16,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 21:00:16,178 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-easy7.wvr.c[1898,1911] [2025-04-13 21:00:16,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:00:16,189 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 21:00:16,210 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-easy7.wvr.c[1898,1911] [2025-04-13 21:00:16,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:00:16,227 INFO L204 MainTranslator]: Completed translation [2025-04-13 21:00:16,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16 WrapperNode [2025-04-13 21:00:16,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 21:00:16,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 21:00:16,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 21:00:16,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 21:00:16,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,256 INFO L138 Inliner]: procedures = 20, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2025-04-13 21:00:16,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 21:00:16,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 21:00:16,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 21:00:16,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 21:00:16,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,265 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,276 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 21:00:16,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,279 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 21:00:16,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 21:00:16,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 21:00:16,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 21:00:16,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (1/1) ... [2025-04-13 21:00:16,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:00:16,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:00:16,313 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 21:00:16,315 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 21:00:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 21:00:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 21:00:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 21:00:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 21:00:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 21:00:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 21:00:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 21:00:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 21:00:16,334 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 21:00:16,396 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 21:00:16,398 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 21:00:16,527 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 21:00:16,528 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 21:00:16,528 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 21:00:16,644 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 21:00:16,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 09:00:16 BoogieIcfgContainer [2025-04-13 21:00:16,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 21:00:16,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 21:00:16,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 21:00:16,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 21:00:16,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 09:00:16" (1/3) ... [2025-04-13 21:00:16,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754adae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:00:16, skipping insertion in model container [2025-04-13 21:00:16,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:00:16" (2/3) ... [2025-04-13 21:00:16,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754adae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:00:16, skipping insertion in model container [2025-04-13 21:00:16,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 09:00:16" (3/3) ... [2025-04-13 21:00:16,650 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2025-04-13 21:00:16,659 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 21:00:16,660 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy7.wvr.c that has 3 procedures, 14 locations, 11 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 21:00:16,660 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 21:00:16,687 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 21:00:16,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 13 transitions, 40 flow [2025-04-13 21:00:16,728 INFO L116 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-04-13 21:00:16,730 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 21:00:16,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 11 events. 0/11 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-13 21:00:16,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 20 places, 13 transitions, 40 flow [2025-04-13 21:00:16,732 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 17 places, 10 transitions, 32 flow [2025-04-13 21:00:16,737 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 21:00:16,745 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;@49053fe0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 21:00:16,745 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-13 21:00:16,753 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 21:00:16,753 INFO L116 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-04-13 21:00:16,753 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 21:00:16,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 21:00:16,754 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:00:16,754 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 21:00:16,758 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:00:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash -2117890251, now seen corresponding path program 1 times [2025-04-13 21:00:16,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:00:16,764 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862877870] [2025-04-13 21:00:16,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:00:16,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:00:16,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-13 21:00:16,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-13 21:00:16,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:00:16,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:00:17,148 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 21:00:17,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:00:17,150 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862877870] [2025-04-13 21:00:17,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862877870] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:00:17,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:00:17,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 21:00:17,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288003176] [2025-04-13 21:00:17,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:00:17,156 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:00:17,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:00:17,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:00:17,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:00:17,174 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 13 [2025-04-13 21:00:17,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 10 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21:00:17,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 21:00:17,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 13 [2025-04-13 21:00:17,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 21:00:17,228 INFO L116 PetriNetUnfolderBase]: 7/28 cut-off events. [2025-04-13 21:00:17,229 INFO L117 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-04-13 21:00:17,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 28 events. 7/28 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 2 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 42. Up to 16 conditions per place. [2025-04-13 21:00:17,230 INFO L140 encePairwiseOnDemand]: 9/13 looper letters, 11 selfloop transitions, 2 changer transitions 5/18 dead transitions. [2025-04-13 21:00:17,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 93 flow [2025-04-13 21:00:17,231 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:00:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 21:00:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2025-04-13 21:00:17,241 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5192307692307693 [2025-04-13 21:00:17,242 INFO L175 Difference]: Start difference. First operand has 17 places, 10 transitions, 32 flow. Second operand 4 states and 27 transitions. [2025-04-13 21:00:17,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 93 flow [2025-04-13 21:00:17,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 18 transitions, 79 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-13 21:00:17,247 INFO L231 Difference]: Finished difference. Result has 17 places, 10 transitions, 34 flow [2025-04-13 21:00:17,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=34, PETRI_PLACES=17, PETRI_TRANSITIONS=10} [2025-04-13 21:00:17,251 INFO L279 CegarLoopForPetriNet]: 17 programPoint places, 0 predicate places. [2025-04-13 21:00:17,251 INFO L485 AbstractCegarLoop]: Abstraction has has 17 places, 10 transitions, 34 flow [2025-04-13 21:00:17,251 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21:00:17,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 21:00:17,252 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:00:17,252 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 21:00:17,252 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 21:00:17,252 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:00:17,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2119878325, now seen corresponding path program 2 times [2025-04-13 21:00:17,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:00:17,252 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876766036] [2025-04-13 21:00:17,253 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 21:00:17,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:00:17,261 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 10 statements into 1 equivalence classes. [2025-04-13 21:00:17,304 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-13 21:00:17,304 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 21:00:17,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:00:17,433 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 21:00:17,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:00:17,433 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876766036] [2025-04-13 21:00:17,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876766036] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:00:17,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:00:17,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 21:00:17,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566184352] [2025-04-13 21:00:17,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:00:17,434 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:00:17,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:00:17,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:00:17,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:00:17,435 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 13 [2025-04-13 21:00:17,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 10 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21:00:17,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 21:00:17,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 13 [2025-04-13 21:00:17,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 21:00:17,471 INFO L116 PetriNetUnfolderBase]: 5/19 cut-off events. [2025-04-13 21:00:17,471 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-13 21:00:17,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 19 events. 5/19 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 1 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2025-04-13 21:00:17,471 INFO L140 encePairwiseOnDemand]: 9/13 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2025-04-13 21:00:17,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 13 transitions, 66 flow [2025-04-13 21:00:17,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:00:17,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 21:00:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2025-04-13 21:00:17,472 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2025-04-13 21:00:17,472 INFO L175 Difference]: Start difference. First operand has 17 places, 10 transitions, 34 flow. Second operand 4 states and 22 transitions. [2025-04-13 21:00:17,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 13 transitions, 66 flow [2025-04-13 21:00:17,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 13 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-13 21:00:17,473 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2025-04-13 21:00:17,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2025-04-13 21:00:17,473 INFO L279 CegarLoopForPetriNet]: 17 programPoint places, -1 predicate places. [2025-04-13 21:00:17,473 INFO L485 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2025-04-13 21:00:17,474 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21:00:17,475 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-13 21:00:17,475 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-13 21:00:17,475 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-13 21:00:17,476 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 21:00:17,476 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-04-13 21:00:17,480 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 21:00:17,480 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 21:00:17,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 09:00:17 BasicIcfg [2025-04-13 21:00:17,486 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 21:00:17,487 INFO L158 Benchmark]: Toolchain (without parser) took 1466.63ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 91.3MB in the end (delta: 27.1MB). Peak memory consumption was 27.0MB. Max. memory is 8.0GB. [2025-04-13 21:00:17,487 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:00:17,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.97ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 103.9MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 21:00:17,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.03ms. Allocated memory is still 167.8MB. Free memory was 103.9MB in the beginning and 102.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:00:17,488 INFO L158 Benchmark]: Boogie Preprocessor took 32.02ms. Allocated memory is still 167.8MB. Free memory was 102.6MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 21:00:17,488 INFO L158 Benchmark]: RCFGBuilder took 355.20ms. Allocated memory is still 167.8MB. Free memory was 101.1MB in the beginning and 75.3MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 21:00:17,488 INFO L158 Benchmark]: TraceAbstraction took 840.78ms. Allocated memory is still 167.8MB. Free memory was 74.6MB in the beginning and 91.3MB in the end (delta: -16.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:00:17,489 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 86.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 206.97ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 103.9MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.03ms. Allocated memory is still 167.8MB. Free memory was 103.9MB in the beginning and 102.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 32.02ms. Allocated memory is still 167.8MB. Free memory was 102.6MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 355.20ms. Allocated memory is still 167.8MB. Free memory was 101.1MB in the beginning and 75.3MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 840.78ms. Allocated memory is still 167.8MB. Free memory was 74.6MB in the beginning and 91.3MB in the end (delta: -16.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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, 20 locations, 19 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 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 21:00:17,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...