./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label51.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-08 23:59:22,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-08 23:59:22,407 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-08 23:59:22,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-08 23:59:22,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-08 23:59:22,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-08 23:59:22,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-08 23:59:22,449 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-08 23:59:22,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-08 23:59:22,450 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-08 23:59:22,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-08 23:59:22,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-08 23:59:22,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-08 23:59:22,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-08 23:59:22,451 INFO L153 SettingsManager]: * Use SBE=true [2025-01-08 23:59:22,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-08 23:59:22,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-08 23:59:22,452 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-08 23:59:22,453 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-08 23:59:22,454 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:59:22,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:59:22,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-08 23:59:22,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-08 23:59:22,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-08 23:59:22,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-08 23:59:22,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-08 23:59:22,455 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-08 23:59:22,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-08 23:59:22,455 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f [2025-01-08 23:59:22,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-08 23:59:22,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-08 23:59:22,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-08 23:59:22,759 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-08 23:59:22,759 INFO L274 PluginConnector]: CDTParser initialized [2025-01-08 23:59:22,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2025-01-08 23:59:24,134 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e100b712/779b189600c94a458d520ee7f316dfb5/FLAGea97229a2 [2025-01-08 23:59:24,477 INFO L384 CDTParser]: Found 1 translation units. [2025-01-08 23:59:24,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2025-01-08 23:59:24,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e100b712/779b189600c94a458d520ee7f316dfb5/FLAGea97229a2 [2025-01-08 23:59:24,511 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e100b712/779b189600c94a458d520ee7f316dfb5 [2025-01-08 23:59:24,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-08 23:59:24,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-08 23:59:24,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-08 23:59:24,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-08 23:59:24,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-08 23:59:24,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 11:59:24" (1/1) ... [2025-01-08 23:59:24,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1ea205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:24, skipping insertion in model container [2025-01-08 23:59:24,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 11:59:24" (1/1) ... [2025-01-08 23:59:24,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-08 23:59:24,737 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2025-01-08 23:59:24,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 23:59:24,941 INFO L200 MainTranslator]: Completed pre-run [2025-01-08 23:59:24,957 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2025-01-08 23:59:25,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 23:59:25,049 INFO L204 MainTranslator]: Completed translation [2025-01-08 23:59:25,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25 WrapperNode [2025-01-08 23:59:25,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-08 23:59:25,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-08 23:59:25,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-08 23:59:25,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-08 23:59:25,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,151 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 856 [2025-01-08 23:59:25,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-08 23:59:25,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-08 23:59:25,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-08 23:59:25,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-08 23:59:25,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,171 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,210 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]. [2025-01-08 23:59:25,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-08 23:59:25,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-08 23:59:25,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-08 23:59:25,275 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-08 23:59:25,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (1/1) ... [2025-01-08 23:59:25,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:59:25,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:25,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-08 23:59:25,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-08 23:59:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-08 23:59:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-08 23:59:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-08 23:59:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-08 23:59:25,396 INFO L234 CfgBuilder]: Building ICFG [2025-01-08 23:59:25,398 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-08 23:59:26,683 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2025-01-08 23:59:26,684 INFO L283 CfgBuilder]: Performing block encoding [2025-01-08 23:59:26,700 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-08 23:59:26,702 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-08 23:59:26,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:59:26 BoogieIcfgContainer [2025-01-08 23:59:26,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-08 23:59:26,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-08 23:59:26,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-08 23:59:26,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-08 23:59:26,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.01 11:59:24" (1/3) ... [2025-01-08 23:59:26,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a93340b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 11:59:26, skipping insertion in model container [2025-01-08 23:59:26,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:59:25" (2/3) ... [2025-01-08 23:59:26,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a93340b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 11:59:26, skipping insertion in model container [2025-01-08 23:59:26,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:59:26" (3/3) ... [2025-01-08 23:59:26,714 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2025-01-08 23:59:26,728 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-08 23:59:26,730 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem14_label51.c that has 1 procedures, 245 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-08 23:59:26,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-08 23:59:26,804 INFO L333 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;@6674f38c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-08 23:59:26,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-08 23:59:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7325102880658436) internal successors, (421), 244 states have internal predecessors, (421), 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) [2025-01-08 23:59:26,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-01-08 23:59:26,816 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:26,816 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:26,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:26,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:26,822 INFO L85 PathProgramCache]: Analyzing trace with hash -767624068, now seen corresponding path program 1 times [2025-01-08 23:59:26,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:26,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325304160] [2025-01-08 23:59:26,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:26,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:26,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-08 23:59:26,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-08 23:59:26,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:26,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:59:27,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:27,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325304160] [2025-01-08 23:59:27,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325304160] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:27,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:27,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:59:27,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053904829] [2025-01-08 23:59:27,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:27,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:27,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:27,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:27,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:27,167 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7325102880658436) internal successors, (421), 244 states have internal predecessors, (421), 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) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2025-01-08 23:59:28,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:28,122 INFO L93 Difference]: Finished difference Result 669 states and 1197 transitions. [2025-01-08 23:59:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:28,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) Word has length 35 [2025-01-08 23:59:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:28,134 INFO L225 Difference]: With dead ends: 669 [2025-01-08 23:59:28,135 INFO L226 Difference]: Without dead ends: 360 [2025-01-08 23:59:28,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:28,142 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 175 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:28,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 94 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-08 23:59:28,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-01-08 23:59:28,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2025-01-08 23:59:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 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) [2025-01-08 23:59:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2025-01-08 23:59:28,193 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 35 [2025-01-08 23:59:28,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:28,194 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2025-01-08 23:59:28,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2025-01-08 23:59:28,194 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2025-01-08 23:59:28,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-01-08 23:59:28,201 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:28,201 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:28,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-08 23:59:28,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:28,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:28,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1160131269, now seen corresponding path program 1 times [2025-01-08 23:59:28,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:28,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462457020] [2025-01-08 23:59:28,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:28,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:28,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-08 23:59:28,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-08 23:59:28,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:28,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:59:28,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:28,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462457020] [2025-01-08 23:59:28,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462457020] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:28,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:28,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:59:28,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132282209] [2025-01-08 23:59:28,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:28,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:28,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:28,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:28,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:28,462 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2025-01-08 23:59:29,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:29,165 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2025-01-08 23:59:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:29,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) Word has length 110 [2025-01-08 23:59:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:29,172 INFO L225 Difference]: With dead ends: 1074 [2025-01-08 23:59:29,173 INFO L226 Difference]: Without dead ends: 716 [2025-01-08 23:59:29,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:29,177 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 122 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:29,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 95 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-08 23:59:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2025-01-08 23:59:29,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2025-01-08 23:59:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 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) [2025-01-08 23:59:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2025-01-08 23:59:29,230 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 110 [2025-01-08 23:59:29,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:29,231 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2025-01-08 23:59:29,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2025-01-08 23:59:29,231 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2025-01-08 23:59:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-01-08 23:59:29,236 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:29,236 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:29,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-08 23:59:29,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:29,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:29,237 INFO L85 PathProgramCache]: Analyzing trace with hash -318716849, now seen corresponding path program 1 times [2025-01-08 23:59:29,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:29,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336989511] [2025-01-08 23:59:29,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:29,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:29,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-01-08 23:59:29,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-01-08 23:59:29,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:29,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:29,675 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:59:29,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:29,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336989511] [2025-01-08 23:59:29,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336989511] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:29,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:29,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:29,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522312542] [2025-01-08 23:59:29,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:29,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:59:29,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:29,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:59:29,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:59:29,677 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:59:30,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:30,546 INFO L93 Difference]: Finished difference Result 1964 states and 2564 transitions. [2025-01-08 23:59:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:59:30,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2025-01-08 23:59:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:30,553 INFO L225 Difference]: With dead ends: 1964 [2025-01-08 23:59:30,553 INFO L226 Difference]: Without dead ends: 1250 [2025-01-08 23:59:30,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-08 23:59:30,555 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 434 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:30,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 116 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-08 23:59:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2025-01-08 23:59:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2025-01-08 23:59:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.255404323458767) internal successors, (1568), 1249 states have internal predecessors, (1568), 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) [2025-01-08 23:59:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1568 transitions. [2025-01-08 23:59:30,593 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1568 transitions. Word has length 114 [2025-01-08 23:59:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:30,594 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1568 transitions. [2025-01-08 23:59:30,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:59:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1568 transitions. [2025-01-08 23:59:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-01-08 23:59:30,608 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:30,609 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:30,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-08 23:59:30,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:30,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:30,610 INFO L85 PathProgramCache]: Analyzing trace with hash -232209153, now seen corresponding path program 1 times [2025-01-08 23:59:30,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:30,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438055578] [2025-01-08 23:59:30,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:30,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:30,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-08 23:59:30,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-08 23:59:30,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:30,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 23:59:30,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:30,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438055578] [2025-01-08 23:59:30,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438055578] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:30,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:30,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:59:30,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664229743] [2025-01-08 23:59:30,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:30,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:30,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:30,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:30,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:30,776 INFO L87 Difference]: Start difference. First operand 1250 states and 1568 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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) [2025-01-08 23:59:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:31,461 INFO L93 Difference]: Finished difference Result 2676 states and 3487 transitions. [2025-01-08 23:59:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:31,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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) Word has length 180 [2025-01-08 23:59:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:31,469 INFO L225 Difference]: With dead ends: 2676 [2025-01-08 23:59:31,469 INFO L226 Difference]: Without dead ends: 1606 [2025-01-08 23:59:31,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:31,472 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:31,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:59:31,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2025-01-08 23:59:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2025-01-08 23:59:31,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.2330218068535825) internal successors, (1979), 1605 states have internal predecessors, (1979), 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) [2025-01-08 23:59:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1979 transitions. [2025-01-08 23:59:31,517 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1979 transitions. Word has length 180 [2025-01-08 23:59:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:31,518 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1979 transitions. [2025-01-08 23:59:31,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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) [2025-01-08 23:59:31,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1979 transitions. [2025-01-08 23:59:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2025-01-08 23:59:31,522 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:31,522 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:31,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-08 23:59:31,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:31,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash -568999204, now seen corresponding path program 1 times [2025-01-08 23:59:31,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:31,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804514730] [2025-01-08 23:59:31,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:31,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:31,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 194 statements into 1 equivalence classes. [2025-01-08 23:59:31,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 194 of 194 statements. [2025-01-08 23:59:31,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:31,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 23:59:31,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:31,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804514730] [2025-01-08 23:59:31,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804514730] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:31,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:31,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:31,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087166006] [2025-01-08 23:59:31,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:31,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:59:31,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:31,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:59:31,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:59:31,827 INFO L87 Difference]: Start difference. First operand 1606 states and 1979 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2025-01-08 23:59:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:32,549 INFO L93 Difference]: Finished difference Result 3239 states and 4003 transitions. [2025-01-08 23:59:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:59:32,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) Word has length 194 [2025-01-08 23:59:32,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:32,557 INFO L225 Difference]: With dead ends: 3239 [2025-01-08 23:59:32,557 INFO L226 Difference]: Without dead ends: 1784 [2025-01-08 23:59:32,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:59:32,561 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 110 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:32,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 113 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-08 23:59:32,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2025-01-08 23:59:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2025-01-08 23:59:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.145171339563863) internal successors, (1838), 1605 states have internal predecessors, (1838), 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) [2025-01-08 23:59:32,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1838 transitions. [2025-01-08 23:59:32,598 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1838 transitions. Word has length 194 [2025-01-08 23:59:32,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:32,598 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1838 transitions. [2025-01-08 23:59:32,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2025-01-08 23:59:32,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1838 transitions. [2025-01-08 23:59:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2025-01-08 23:59:32,601 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:32,602 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:32,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-08 23:59:32,602 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:32,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:32,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1812389160, now seen corresponding path program 1 times [2025-01-08 23:59:32,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:32,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874503157] [2025-01-08 23:59:32,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:32,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:32,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 270 statements into 1 equivalence classes. [2025-01-08 23:59:32,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 270 of 270 statements. [2025-01-08 23:59:32,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:32,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 147 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:59:33,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:33,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874503157] [2025-01-08 23:59:33,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874503157] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:33,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549722820] [2025-01-08 23:59:33,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:33,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:33,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-08 23:59:33,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 270 statements into 1 equivalence classes. [2025-01-08 23:59:33,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 270 of 270 statements. [2025-01-08 23:59:33,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:33,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:33,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:59:33,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-08 23:59:33,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:59:33,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549722820] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:33,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:59:33,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:59:33,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541902360] [2025-01-08 23:59:33,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:33,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:33,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:33,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:33,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:33,291 INFO L87 Difference]: Start difference. First operand 1606 states and 1838 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2025-01-08 23:59:33,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:33,818 INFO L93 Difference]: Finished difference Result 2142 states and 2437 transitions. [2025-01-08 23:59:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:33,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) Word has length 270 [2025-01-08 23:59:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:33,826 INFO L225 Difference]: With dead ends: 2142 [2025-01-08 23:59:33,826 INFO L226 Difference]: Without dead ends: 2140 [2025-01-08 23:59:33,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:33,828 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 167 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:33,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 11 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:59:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2025-01-08 23:59:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1784. [2025-01-08 23:59:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1508693213684802) internal successors, (2052), 1783 states have internal predecessors, (2052), 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) [2025-01-08 23:59:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2052 transitions. [2025-01-08 23:59:33,866 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2052 transitions. Word has length 270 [2025-01-08 23:59:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:33,867 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2052 transitions. [2025-01-08 23:59:33,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2025-01-08 23:59:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2052 transitions. [2025-01-08 23:59:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2025-01-08 23:59:33,886 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:33,887 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:33,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-08 23:59:34,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:34,091 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:34,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:34,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1090175185, now seen corresponding path program 1 times [2025-01-08 23:59:34,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:34,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059468969] [2025-01-08 23:59:34,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:34,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:34,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 325 statements into 1 equivalence classes. [2025-01-08 23:59:34,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 325 of 325 statements. [2025-01-08 23:59:34,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:34,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 205 proven. 100 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-08 23:59:34,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:34,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059468969] [2025-01-08 23:59:34,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059468969] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:34,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989046517] [2025-01-08 23:59:34,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:34,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:34,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:34,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:34,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-08 23:59:34,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 325 statements into 1 equivalence classes. [2025-01-08 23:59:34,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 325 of 325 statements. [2025-01-08 23:59:34,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:34,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:34,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:59:34,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-01-08 23:59:34,817 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:59:34,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989046517] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:34,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:59:34,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:59:34,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210713047] [2025-01-08 23:59:34,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:34,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:34,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:34,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:34,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:34,819 INFO L87 Difference]: Start difference. First operand 1784 states and 2052 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-01-08 23:59:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:35,371 INFO L93 Difference]: Finished difference Result 3744 states and 4319 transitions. [2025-01-08 23:59:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:35,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) Word has length 325 [2025-01-08 23:59:35,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:35,378 INFO L225 Difference]: With dead ends: 3744 [2025-01-08 23:59:35,378 INFO L226 Difference]: Without dead ends: 1962 [2025-01-08 23:59:35,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:35,381 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 146 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:35,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 265 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:59:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2025-01-08 23:59:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1606. [2025-01-08 23:59:35,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1414330218068536) internal successors, (1832), 1605 states have internal predecessors, (1832), 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) [2025-01-08 23:59:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1832 transitions. [2025-01-08 23:59:35,412 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1832 transitions. Word has length 325 [2025-01-08 23:59:35,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:35,413 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1832 transitions. [2025-01-08 23:59:35,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-01-08 23:59:35,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1832 transitions. [2025-01-08 23:59:35,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2025-01-08 23:59:35,422 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:35,423 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:35,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-08 23:59:35,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:35,627 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:35,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:35,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1214109293, now seen corresponding path program 1 times [2025-01-08 23:59:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:35,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874592799] [2025-01-08 23:59:35,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:35,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:35,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 436 statements into 1 equivalence classes. [2025-01-08 23:59:35,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 436 of 436 statements. [2025-01-08 23:59:35,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:35,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 422 proven. 130 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2025-01-08 23:59:36,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:36,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874592799] [2025-01-08 23:59:36,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874592799] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:36,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960231976] [2025-01-08 23:59:36,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:36,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:36,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:36,411 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:36,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-08 23:59:36,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 436 statements into 1 equivalence classes. [2025-01-08 23:59:36,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 436 of 436 statements. [2025-01-08 23:59:36,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:36,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:36,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:59:36,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2025-01-08 23:59:36,648 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:59:36,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960231976] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:36,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:59:36,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-01-08 23:59:36,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767468956] [2025-01-08 23:59:36,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:36,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:36,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:36,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:36,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:36,650 INFO L87 Difference]: Start difference. First operand 1606 states and 1832 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2025-01-08 23:59:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:37,250 INFO L93 Difference]: Finished difference Result 3744 states and 4347 transitions. [2025-01-08 23:59:37,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:37,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) Word has length 436 [2025-01-08 23:59:37,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:37,259 INFO L225 Difference]: With dead ends: 3744 [2025-01-08 23:59:37,259 INFO L226 Difference]: Without dead ends: 2318 [2025-01-08 23:59:37,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:37,262 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 146 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:37,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 256 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:59:37,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2025-01-08 23:59:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1962. [2025-01-08 23:59:37,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1422743498215195) internal successors, (2240), 1961 states have internal predecessors, (2240), 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) [2025-01-08 23:59:37,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2240 transitions. [2025-01-08 23:59:37,297 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2240 transitions. Word has length 436 [2025-01-08 23:59:37,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:37,298 INFO L471 AbstractCegarLoop]: Abstraction has 1962 states and 2240 transitions. [2025-01-08 23:59:37,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2025-01-08 23:59:37,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2240 transitions. [2025-01-08 23:59:37,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2025-01-08 23:59:37,305 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:37,305 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:37,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-08 23:59:37,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:37,509 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:37,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:37,510 INFO L85 PathProgramCache]: Analyzing trace with hash -770263891, now seen corresponding path program 1 times [2025-01-08 23:59:37,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:37,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371974203] [2025-01-08 23:59:37,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:37,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 455 statements into 1 equivalence classes. [2025-01-08 23:59:37,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 455 of 455 statements. [2025-01-08 23:59:37,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:37,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 479 proven. 130 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2025-01-08 23:59:38,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:38,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371974203] [2025-01-08 23:59:38,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371974203] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:38,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914445032] [2025-01-08 23:59:38,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:38,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:38,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:38,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-08 23:59:38,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 455 statements into 1 equivalence classes. [2025-01-08 23:59:38,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 455 of 455 statements. [2025-01-08 23:59:38,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:38,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:38,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:59:38,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-01-08 23:59:38,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:59:38,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914445032] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:38,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:59:38,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-01-08 23:59:38,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178060012] [2025-01-08 23:59:38,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:38,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:38,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:38,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:38,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:38,834 INFO L87 Difference]: Start difference. First operand 1962 states and 2240 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 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) [2025-01-08 23:59:39,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:39,378 INFO L93 Difference]: Finished difference Result 4100 states and 4697 transitions. [2025-01-08 23:59:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:39,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 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) Word has length 455 [2025-01-08 23:59:39,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:39,387 INFO L225 Difference]: With dead ends: 4100 [2025-01-08 23:59:39,388 INFO L226 Difference]: Without dead ends: 2318 [2025-01-08 23:59:39,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:39,394 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:39,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 54 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:59:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2025-01-08 23:59:39,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2025-01-08 23:59:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.132067328441951) internal successors, (2623), 2317 states have internal predecessors, (2623), 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) [2025-01-08 23:59:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2623 transitions. [2025-01-08 23:59:39,443 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2623 transitions. Word has length 455 [2025-01-08 23:59:39,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:39,444 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 2623 transitions. [2025-01-08 23:59:39,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 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) [2025-01-08 23:59:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2623 transitions. [2025-01-08 23:59:39,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2025-01-08 23:59:39,456 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:39,456 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:39,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-08 23:59:39,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-01-08 23:59:39,660 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:39,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:39,661 INFO L85 PathProgramCache]: Analyzing trace with hash -618599373, now seen corresponding path program 1 times [2025-01-08 23:59:39,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:39,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711551344] [2025-01-08 23:59:39,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:39,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:39,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 524 statements into 1 equivalence classes. [2025-01-08 23:59:39,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 524 of 524 statements. [2025-01-08 23:59:39,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:39,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 784 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-01-08 23:59:40,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:40,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711551344] [2025-01-08 23:59:40,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711551344] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:40,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:40,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:40,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751285279] [2025-01-08 23:59:40,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:40,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:40,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:40,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:40,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:40,093 INFO L87 Difference]: Start difference. First operand 2318 states and 2623 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2025-01-08 23:59:40,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:40,636 INFO L93 Difference]: Finished difference Result 5168 states and 5868 transitions. [2025-01-08 23:59:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:40,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) Word has length 524 [2025-01-08 23:59:40,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:40,646 INFO L225 Difference]: With dead ends: 5168 [2025-01-08 23:59:40,646 INFO L226 Difference]: Without dead ends: 2852 [2025-01-08 23:59:40,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:40,650 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:40,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 76 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:59:40,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2025-01-08 23:59:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2025-01-08 23:59:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1283202394313505) internal successors, (3016), 2673 states have internal predecessors, (3016), 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) [2025-01-08 23:59:40,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3016 transitions. [2025-01-08 23:59:40,697 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3016 transitions. Word has length 524 [2025-01-08 23:59:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:40,697 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 3016 transitions. [2025-01-08 23:59:40,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2025-01-08 23:59:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3016 transitions. [2025-01-08 23:59:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2025-01-08 23:59:40,706 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:40,706 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:40,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-08 23:59:40,707 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:40,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:40,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1052488698, now seen corresponding path program 1 times [2025-01-08 23:59:40,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:40,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620514686] [2025-01-08 23:59:40,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:40,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:40,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 535 statements into 1 equivalence classes. [2025-01-08 23:59:40,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 535 of 535 statements. [2025-01-08 23:59:40,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:40,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 727 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2025-01-08 23:59:41,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:41,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620514686] [2025-01-08 23:59:41,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620514686] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:41,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:41,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:41,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362299148] [2025-01-08 23:59:41,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:41,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:59:41,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:41,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:59:41,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:59:41,069 INFO L87 Difference]: Start difference. First operand 2674 states and 3016 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2025-01-08 23:59:41,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:41,665 INFO L93 Difference]: Finished difference Result 5375 states and 6063 transitions. [2025-01-08 23:59:41,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:59:41,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) Word has length 535 [2025-01-08 23:59:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:41,675 INFO L225 Difference]: With dead ends: 5375 [2025-01-08 23:59:41,675 INFO L226 Difference]: Without dead ends: 2852 [2025-01-08 23:59:41,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:59:41,679 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 140 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:41,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 17 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:59:41,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2025-01-08 23:59:41,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2025-01-08 23:59:41,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0856715301159745) internal successors, (2902), 2673 states have internal predecessors, (2902), 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) [2025-01-08 23:59:41,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2902 transitions. [2025-01-08 23:59:41,724 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2902 transitions. Word has length 535 [2025-01-08 23:59:41,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:41,725 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 2902 transitions. [2025-01-08 23:59:41,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2025-01-08 23:59:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2902 transitions. [2025-01-08 23:59:41,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2025-01-08 23:59:41,730 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:41,730 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:41,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-08 23:59:41,730 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:41,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash -55600017, now seen corresponding path program 1 times [2025-01-08 23:59:41,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:41,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638652886] [2025-01-08 23:59:41,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:41,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:41,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 548 statements into 1 equivalence classes. [2025-01-08 23:59:41,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 548 of 548 statements. [2025-01-08 23:59:41,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:41,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:42,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 698 proven. 23 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2025-01-08 23:59:42,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:42,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638652886] [2025-01-08 23:59:42,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638652886] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:42,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294176867] [2025-01-08 23:59:42,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:42,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:42,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:42,254 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:42,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-08 23:59:42,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 548 statements into 1 equivalence classes. [2025-01-08 23:59:42,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 548 of 548 statements. [2025-01-08 23:59:42,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:42,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:42,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:59:42,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:43,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2025-01-08 23:59:43,007 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:59:43,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294176867] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:43,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:59:43,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:59:43,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173813993] [2025-01-08 23:59:43,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:43,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:59:43,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:43,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:59:43,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:43,009 INFO L87 Difference]: Start difference. First operand 2674 states and 2902 transitions. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:59:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:43,673 INFO L93 Difference]: Finished difference Result 5524 states and 5991 transitions. [2025-01-08 23:59:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:59:43,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 548 [2025-01-08 23:59:43,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:43,684 INFO L225 Difference]: With dead ends: 5524 [2025-01-08 23:59:43,684 INFO L226 Difference]: Without dead ends: 3030 [2025-01-08 23:59:43,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:43,689 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 186 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:43,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 45 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:59:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2025-01-08 23:59:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2496. [2025-01-08 23:59:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0905811623246493) internal successors, (2721), 2495 states have internal predecessors, (2721), 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) [2025-01-08 23:59:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2721 transitions. [2025-01-08 23:59:43,752 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2721 transitions. Word has length 548 [2025-01-08 23:59:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:43,752 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2721 transitions. [2025-01-08 23:59:43,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:59:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2721 transitions. [2025-01-08 23:59:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2025-01-08 23:59:43,760 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:43,761 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:43,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-08 23:59:43,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-08 23:59:43,962 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:43,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:43,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1934687659, now seen corresponding path program 1 times [2025-01-08 23:59:43,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:43,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862559986] [2025-01-08 23:59:43,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:43,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:44,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 635 statements into 1 equivalence classes. [2025-01-08 23:59:44,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 635 of 635 statements. [2025-01-08 23:59:44,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:44,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 764 proven. 93 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-01-08 23:59:44,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:44,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862559986] [2025-01-08 23:59:44,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862559986] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:44,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376376429] [2025-01-08 23:59:44,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:44,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:44,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:44,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:44,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-08 23:59:44,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 635 statements into 1 equivalence classes. [2025-01-08 23:59:44,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 635 of 635 statements. [2025-01-08 23:59:44,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:44,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:44,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:59:44,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 857 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-01-08 23:59:44,939 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:59:44,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376376429] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:44,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:59:44,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:59:44,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566765907] [2025-01-08 23:59:44,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:44,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:44,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:44,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:44,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:44,942 INFO L87 Difference]: Start difference. First operand 2496 states and 2721 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) [2025-01-08 23:59:45,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:45,350 INFO L93 Difference]: Finished difference Result 6236 states and 6813 transitions. [2025-01-08 23:59:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:45,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) Word has length 635 [2025-01-08 23:59:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:45,362 INFO L225 Difference]: With dead ends: 6236 [2025-01-08 23:59:45,362 INFO L226 Difference]: Without dead ends: 3742 [2025-01-08 23:59:45,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:45,366 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:45,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 51 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:59:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2025-01-08 23:59:45,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2025-01-08 23:59:45,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.083076059500421) internal successors, (3859), 3563 states have internal predecessors, (3859), 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) [2025-01-08 23:59:45,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3859 transitions. [2025-01-08 23:59:45,430 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3859 transitions. Word has length 635 [2025-01-08 23:59:45,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:45,430 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 3859 transitions. [2025-01-08 23:59:45,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) [2025-01-08 23:59:45,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3859 transitions. [2025-01-08 23:59:45,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2025-01-08 23:59:45,454 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:45,455 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:45,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-08 23:59:45,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-08 23:59:45,655 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:45,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:45,656 INFO L85 PathProgramCache]: Analyzing trace with hash -223683877, now seen corresponding path program 1 times [2025-01-08 23:59:45,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:45,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667161925] [2025-01-08 23:59:45,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:45,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:45,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 637 statements into 1 equivalence classes. [2025-01-08 23:59:45,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 637 of 637 statements. [2025-01-08 23:59:45,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:45,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 1095 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2025-01-08 23:59:46,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:46,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667161925] [2025-01-08 23:59:46,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667161925] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:46,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:46,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:46,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232037173] [2025-01-08 23:59:46,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:46,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:46,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:46,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:46,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:46,082 INFO L87 Difference]: Start difference. First operand 3564 states and 3859 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2025-01-08 23:59:46,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:46,511 INFO L93 Difference]: Finished difference Result 7304 states and 7899 transitions. [2025-01-08 23:59:46,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:46,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) Word has length 637 [2025-01-08 23:59:46,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:46,529 INFO L225 Difference]: With dead ends: 7304 [2025-01-08 23:59:46,533 INFO L226 Difference]: Without dead ends: 3564 [2025-01-08 23:59:46,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:46,537 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:46,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 240 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:59:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2025-01-08 23:59:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2025-01-08 23:59:46,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0724108896996913) internal successors, (3821), 3563 states have internal predecessors, (3821), 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) [2025-01-08 23:59:46,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3821 transitions. [2025-01-08 23:59:46,594 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3821 transitions. Word has length 637 [2025-01-08 23:59:46,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:46,594 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 3821 transitions. [2025-01-08 23:59:46,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2025-01-08 23:59:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3821 transitions. [2025-01-08 23:59:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2025-01-08 23:59:46,603 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:46,603 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:46,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-08 23:59:46,604 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:46,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1458286508, now seen corresponding path program 1 times [2025-01-08 23:59:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:46,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631402963] [2025-01-08 23:59:46,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:46,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:46,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 790 statements into 1 equivalence classes. [2025-01-08 23:59:46,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 790 of 790 statements. [2025-01-08 23:59:46,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:46,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 1314 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-01-08 23:59:47,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631402963] [2025-01-08 23:59:47,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631402963] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268681056] [2025-01-08 23:59:47,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:47,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:47,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:47,120 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:47,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-08 23:59:47,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 790 statements into 1 equivalence classes. [2025-01-08 23:59:47,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 790 of 790 statements. [2025-01-08 23:59:47,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:47,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:47,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:59:47,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2025-01-08 23:59:47,464 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:59:47,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268681056] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:47,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:59:47,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-01-08 23:59:47,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816506691] [2025-01-08 23:59:47,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:47,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:47,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:47,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:47,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-08 23:59:47,467 INFO L87 Difference]: Start difference. First operand 3564 states and 3821 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2025-01-08 23:59:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:47,887 INFO L93 Difference]: Finished difference Result 7838 states and 8448 transitions. [2025-01-08 23:59:47,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:47,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) Word has length 790 [2025-01-08 23:59:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:47,900 INFO L225 Difference]: With dead ends: 7838 [2025-01-08 23:59:47,900 INFO L226 Difference]: Without dead ends: 4276 [2025-01-08 23:59:47,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-08 23:59:47,905 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:47,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 25 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:59:47,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2025-01-08 23:59:47,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2025-01-08 23:59:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.079326336343666) internal successors, (4422), 4097 states have internal predecessors, (4422), 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) [2025-01-08 23:59:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4422 transitions. [2025-01-08 23:59:47,966 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4422 transitions. Word has length 790 [2025-01-08 23:59:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:47,966 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 4422 transitions. [2025-01-08 23:59:47,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2025-01-08 23:59:47,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4422 transitions. [2025-01-08 23:59:47,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2025-01-08 23:59:47,986 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:47,986 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:47,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-08 23:59:48,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:48,187 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:48,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1516310684, now seen corresponding path program 1 times [2025-01-08 23:59:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717458357] [2025-01-08 23:59:48,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:48,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:48,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 792 statements into 1 equivalence classes. [2025-01-08 23:59:48,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 792 of 792 statements. [2025-01-08 23:59:48,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:48,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2210 backedges. 1406 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2025-01-08 23:59:48,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:48,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717458357] [2025-01-08 23:59:48,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717458357] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:48,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:48,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857701392] [2025-01-08 23:59:48,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:48,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:48,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:48,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:48,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:48,694 INFO L87 Difference]: Start difference. First operand 4098 states and 4422 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2025-01-08 23:59:49,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:49,068 INFO L93 Difference]: Finished difference Result 8372 states and 9024 transitions. [2025-01-08 23:59:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:49,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) Word has length 792 [2025-01-08 23:59:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:49,077 INFO L225 Difference]: With dead ends: 8372 [2025-01-08 23:59:49,077 INFO L226 Difference]: Without dead ends: 4098 [2025-01-08 23:59:49,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:49,082 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 112 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:49,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 221 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 23:59:49,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2025-01-08 23:59:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2025-01-08 23:59:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0659018794239687) internal successors, (4367), 4097 states have internal predecessors, (4367), 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) [2025-01-08 23:59:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4367 transitions. [2025-01-08 23:59:49,121 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4367 transitions. Word has length 792 [2025-01-08 23:59:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:49,122 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 4367 transitions. [2025-01-08 23:59:49,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2025-01-08 23:59:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4367 transitions. [2025-01-08 23:59:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2025-01-08 23:59:49,130 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:49,130 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:49,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-08 23:59:49,131 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:49,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash -523593783, now seen corresponding path program 1 times [2025-01-08 23:59:49,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:49,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362099786] [2025-01-08 23:59:49,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:49,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:49,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 810 statements into 1 equivalence classes. [2025-01-08 23:59:49,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 810 of 810 statements. [2025-01-08 23:59:49,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:49,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2210 backedges. 1558 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2025-01-08 23:59:49,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:49,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362099786] [2025-01-08 23:59:49,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362099786] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:49,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:49,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:49,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420703655] [2025-01-08 23:59:49,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:49,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:49,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:49,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:49,609 INFO L87 Difference]: Start difference. First operand 4098 states and 4367 transitions. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2025-01-08 23:59:50,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:50,094 INFO L93 Difference]: Finished difference Result 8372 states and 8914 transitions. [2025-01-08 23:59:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:50,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) Word has length 810 [2025-01-08 23:59:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:50,103 INFO L225 Difference]: With dead ends: 8372 [2025-01-08 23:59:50,103 INFO L226 Difference]: Without dead ends: 4276 [2025-01-08 23:59:50,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:50,107 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:50,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:59:50,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2025-01-08 23:59:50,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2025-01-08 23:59:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0654137173541616) internal successors, (4365), 4097 states have internal predecessors, (4365), 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) [2025-01-08 23:59:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4365 transitions. [2025-01-08 23:59:50,154 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4365 transitions. Word has length 810 [2025-01-08 23:59:50,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:50,155 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 4365 transitions. [2025-01-08 23:59:50,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2025-01-08 23:59:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4365 transitions. [2025-01-08 23:59:50,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2025-01-08 23:59:50,162 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:50,163 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:50,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-08 23:59:50,163 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:50,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2137449946, now seen corresponding path program 1 times [2025-01-08 23:59:50,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:50,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501043146] [2025-01-08 23:59:50,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:50,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:50,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 833 statements into 1 equivalence classes. [2025-01-08 23:59:50,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 833 of 833 statements. [2025-01-08 23:59:50,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:50,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2436 backedges. 1845 proven. 110 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2025-01-08 23:59:50,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:50,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501043146] [2025-01-08 23:59:50,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501043146] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:50,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277613401] [2025-01-08 23:59:50,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:50,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:50,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:50,625 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:50,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-08 23:59:50,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 833 statements into 1 equivalence classes. [2025-01-08 23:59:50,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 833 of 833 statements. [2025-01-08 23:59:50,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:50,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:50,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:59:50,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2436 backedges. 1845 proven. 110 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2025-01-08 23:59:51,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 23:59:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2436 backedges. 1845 proven. 110 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2025-01-08 23:59:51,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277613401] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 23:59:51,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 23:59:51,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-01-08 23:59:51,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483103143] [2025-01-08 23:59:51,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 23:59:51,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-08 23:59:51,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:51,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-08 23:59:51,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:51,478 INFO L87 Difference]: Start difference. First operand 4098 states and 4365 transitions. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) [2025-01-08 23:59:52,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:52,253 INFO L93 Difference]: Finished difference Result 9442 states and 10059 transitions. [2025-01-08 23:59:52,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-08 23:59:52,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) Word has length 833 [2025-01-08 23:59:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:52,262 INFO L225 Difference]: With dead ends: 9442 [2025-01-08 23:59:52,262 INFO L226 Difference]: Without dead ends: 5346 [2025-01-08 23:59:52,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1668 GetRequests, 1664 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:59:52,267 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 266 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:52,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 52 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-08 23:59:52,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2025-01-08 23:59:52,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 4632. [2025-01-08 23:59:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0632692722954005) internal successors, (4924), 4631 states have internal predecessors, (4924), 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) [2025-01-08 23:59:52,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4924 transitions. [2025-01-08 23:59:52,320 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4924 transitions. Word has length 833 [2025-01-08 23:59:52,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:52,321 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 4924 transitions. [2025-01-08 23:59:52,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) [2025-01-08 23:59:52,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4924 transitions. [2025-01-08 23:59:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 888 [2025-01-08 23:59:52,329 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:52,329 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:52,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-08 23:59:52,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-08 23:59:52,530 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:52,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:52,531 INFO L85 PathProgramCache]: Analyzing trace with hash 645320843, now seen corresponding path program 1 times [2025-01-08 23:59:52,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:52,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195697572] [2025-01-08 23:59:52,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:52,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:52,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 887 statements into 1 equivalence classes. [2025-01-08 23:59:52,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 887 of 887 statements. [2025-01-08 23:59:52,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:52,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1662 proven. 0 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2025-01-08 23:59:53,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:53,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195697572] [2025-01-08 23:59:53,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195697572] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:53,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:53,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:59:53,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208181500] [2025-01-08 23:59:53,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:53,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:59:53,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:53,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:59:53,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:53,047 INFO L87 Difference]: Start difference. First operand 4632 states and 4924 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2025-01-08 23:59:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:53,477 INFO L93 Difference]: Finished difference Result 9440 states and 10028 transitions. [2025-01-08 23:59:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:59:53,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) Word has length 887 [2025-01-08 23:59:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:53,486 INFO L225 Difference]: With dead ends: 9440 [2025-01-08 23:59:53,486 INFO L226 Difference]: Without dead ends: 4632 [2025-01-08 23:59:53,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:59:53,491 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 113 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:53,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 220 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:59:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2025-01-08 23:59:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2025-01-08 23:59:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0505277341118346) internal successors, (4678), 4453 states have internal predecessors, (4678), 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) [2025-01-08 23:59:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4678 transitions. [2025-01-08 23:59:53,536 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4678 transitions. Word has length 887 [2025-01-08 23:59:53,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:53,536 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 4678 transitions. [2025-01-08 23:59:53,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2025-01-08 23:59:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4678 transitions. [2025-01-08 23:59:53,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2025-01-08 23:59:53,545 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:53,545 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:53,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-08 23:59:53,545 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:53,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash 322565406, now seen corresponding path program 1 times [2025-01-08 23:59:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:53,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668760526] [2025-01-08 23:59:53,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:53,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:53,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 961 statements into 1 equivalence classes. [2025-01-08 23:59:53,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 961 of 961 statements. [2025-01-08 23:59:53,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:53,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2999 backedges. 1456 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2025-01-08 23:59:54,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:54,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668760526] [2025-01-08 23:59:54,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668760526] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:59:54,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:59:54,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-08 23:59:54,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176833113] [2025-01-08 23:59:54,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:54,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-08 23:59:54,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:54,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-08 23:59:54,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:54,284 INFO L87 Difference]: Start difference. First operand 4454 states and 4678 transitions. Second operand has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 6 states have internal predecessors, (337), 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) [2025-01-08 23:59:54,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:54,760 INFO L93 Difference]: Finished difference Result 9134 states and 9586 transitions. [2025-01-08 23:59:54,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-08 23:59:54,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 6 states have internal predecessors, (337), 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) Word has length 961 [2025-01-08 23:59:54,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:54,770 INFO L225 Difference]: With dead ends: 9134 [2025-01-08 23:59:54,770 INFO L226 Difference]: Without dead ends: 4632 [2025-01-08 23:59:54,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:59:54,776 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 42 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:54,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 25 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:59:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2025-01-08 23:59:54,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2025-01-08 23:59:54,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0406467549966314) internal successors, (4634), 4453 states have internal predecessors, (4634), 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) [2025-01-08 23:59:54,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4634 transitions. [2025-01-08 23:59:54,829 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4634 transitions. Word has length 961 [2025-01-08 23:59:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:54,830 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 4634 transitions. [2025-01-08 23:59:54,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 6 states have internal predecessors, (337), 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) [2025-01-08 23:59:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4634 transitions. [2025-01-08 23:59:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2025-01-08 23:59:54,839 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:54,840 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:54,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-08 23:59:54,841 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:54,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1636675337, now seen corresponding path program 1 times [2025-01-08 23:59:54,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:54,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242300451] [2025-01-08 23:59:54,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:54,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:54,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1032 statements into 1 equivalence classes. [2025-01-08 23:59:54,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1032 of 1032 statements. [2025-01-08 23:59:54,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:54,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2444 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2025-01-08 23:59:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242300451] [2025-01-08 23:59:56,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242300451] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448305751] [2025-01-08 23:59:56,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:56,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:56,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:56,073 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:56,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-08 23:59:56,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1032 statements into 1 equivalence classes. [2025-01-08 23:59:56,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1032 of 1032 statements. [2025-01-08 23:59:56,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:56,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:56,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 23:59:56,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:59:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2453 proven. 616 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-01-08 23:59:57,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 23:59:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2516 proven. 0 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2025-01-08 23:59:57,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448305751] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:57,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-08 23:59:57,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2025-01-08 23:59:57,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080048776] [2025-01-08 23:59:57,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:59:57,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-08 23:59:57,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:59:57,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-08 23:59:57,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-08 23:59:57,607 INFO L87 Difference]: Start difference. First operand 4454 states and 4634 transitions. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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) [2025-01-08 23:59:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:59:58,167 INFO L93 Difference]: Finished difference Result 9618 states and 10009 transitions. [2025-01-08 23:59:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:59:58,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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) Word has length 1032 [2025-01-08 23:59:58,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:59:58,175 INFO L225 Difference]: With dead ends: 9618 [2025-01-08 23:59:58,176 INFO L226 Difference]: Without dead ends: 5166 [2025-01-08 23:59:58,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2067 GetRequests, 2059 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-08 23:59:58,181 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 156 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:59:58,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 9 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:59:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2025-01-08 23:59:58,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2025-01-08 23:59:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0399481753400994) internal successors, (4816), 4631 states have internal predecessors, (4816), 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) [2025-01-08 23:59:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4816 transitions. [2025-01-08 23:59:58,233 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4816 transitions. Word has length 1032 [2025-01-08 23:59:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:59:58,234 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 4816 transitions. [2025-01-08 23:59:58,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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) [2025-01-08 23:59:58,234 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4816 transitions. [2025-01-08 23:59:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2025-01-08 23:59:58,244 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:59:58,244 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:59:58,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-08 23:59:58,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:58,446 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:59:58,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:59:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1607085695, now seen corresponding path program 1 times [2025-01-08 23:59:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:59:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488648970] [2025-01-08 23:59:58,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:59:58,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1109 statements into 1 equivalence classes. [2025-01-08 23:59:58,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1109 of 1109 statements. [2025-01-08 23:59:58,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:58,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:59,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3817 backedges. 2768 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2025-01-08 23:59:59,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:59:59,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488648970] [2025-01-08 23:59:59,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488648970] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:59:59,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027287083] [2025-01-08 23:59:59,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:59:59,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:59:59,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:59:59,723 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 23:59:59,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-08 23:59:59,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1109 statements into 1 equivalence classes. [2025-01-08 23:59:59,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1109 of 1109 statements. [2025-01-08 23:59:59,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:59:59,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:59:59,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 23:59:59,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:00:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3817 backedges. 2727 proven. 666 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-01-09 00:00:00,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:00:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3817 backedges. 2840 proven. 0 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2025-01-09 00:00:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027287083] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 00:00:00,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 00:00:00,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2025-01-09 00:00:00,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111674774] [2025-01-09 00:00:00,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:00:00,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 00:00:00,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:00:00,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 00:00:00,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-09 00:00:00,995 INFO L87 Difference]: Start difference. First operand 4632 states and 4816 transitions. Second operand has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 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) [2025-01-09 00:00:01,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:00:01,389 INFO L93 Difference]: Finished difference Result 9796 states and 10185 transitions. [2025-01-09 00:00:01,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 00:00:01,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 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) Word has length 1109 [2025-01-09 00:00:01,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:00:01,401 INFO L225 Difference]: With dead ends: 9796 [2025-01-09 00:00:01,401 INFO L226 Difference]: Without dead ends: 5166 [2025-01-09 00:00:01,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2221 GetRequests, 2214 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-09 00:00:01,408 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 92 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 00:00:01,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 10 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 00:00:01,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2025-01-09 00:00:01,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2025-01-09 00:00:01,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0401641114230187) internal successors, (4817), 4631 states have internal predecessors, (4817), 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) [2025-01-09 00:00:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4817 transitions. [2025-01-09 00:00:01,463 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4817 transitions. Word has length 1109 [2025-01-09 00:00:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:00:01,464 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 4817 transitions. [2025-01-09 00:00:01,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 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) [2025-01-09 00:00:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4817 transitions. [2025-01-09 00:00:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1333 [2025-01-09 00:00:01,478 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:00:01,478 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:00:01,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-09 00:00:01,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:00:01,679 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:00:01,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:00:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash -775767549, now seen corresponding path program 1 times [2025-01-09 00:00:01,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:00:01,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544459980] [2025-01-09 00:00:01,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:00:01,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:00:01,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1332 statements into 1 equivalence classes. [2025-01-09 00:00:01,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1332 of 1332 statements. [2025-01-09 00:00:01,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:00:01,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:00:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5824 backedges. 2987 proven. 0 refuted. 0 times theorem prover too weak. 2837 trivial. 0 not checked. [2025-01-09 00:00:02,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:00:02,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544459980] [2025-01-09 00:00:02,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544459980] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:00:02,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:00:02,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 00:00:02,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36907170] [2025-01-09 00:00:02,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:00:02,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 00:00:02,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:00:02,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 00:00:02,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 00:00:02,143 INFO L87 Difference]: Start difference. First operand 4632 states and 4817 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2025-01-09 00:00:02,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:00:02,540 INFO L93 Difference]: Finished difference Result 9618 states and 9998 transitions. [2025-01-09 00:00:02,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 00:00:02,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) Word has length 1332 [2025-01-09 00:00:02,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:00:02,549 INFO L225 Difference]: With dead ends: 9618 [2025-01-09 00:00:02,550 INFO L226 Difference]: Without dead ends: 4988 [2025-01-09 00:00:02,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 00:00:02,562 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 00:00:02,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 47 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 00:00:02,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2025-01-09 00:00:02,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2025-01-09 00:00:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0390933666042836) internal successors, (4997), 4809 states have internal predecessors, (4997), 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) [2025-01-09 00:00:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4997 transitions. [2025-01-09 00:00:02,676 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4997 transitions. Word has length 1332 [2025-01-09 00:00:02,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:00:02,681 INFO L471 AbstractCegarLoop]: Abstraction has 4810 states and 4997 transitions. [2025-01-09 00:00:02,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2025-01-09 00:00:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4997 transitions. [2025-01-09 00:00:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1397 [2025-01-09 00:00:02,707 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:00:02,707 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:00:02,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-09 00:00:02,711 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:00:02,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:00:02,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1323253411, now seen corresponding path program 1 times [2025-01-09 00:00:02,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:00:02,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281121497] [2025-01-09 00:00:02,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:00:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:00:02,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1396 statements into 1 equivalence classes. [2025-01-09 00:00:02,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1396 of 1396 statements. [2025-01-09 00:00:02,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:00:02,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:00:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 4579 proven. 304 refuted. 0 times theorem prover too weak. 1086 trivial. 0 not checked. [2025-01-09 00:00:04,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:00:04,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281121497] [2025-01-09 00:00:04,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281121497] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:00:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446002408] [2025-01-09 00:00:04,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:00:04,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:00:04,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:00:04,384 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 00:00:04,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 00:00:04,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1396 statements into 1 equivalence classes. [2025-01-09 00:00:04,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1396 of 1396 statements. [2025-01-09 00:00:04,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:00:04,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:00:04,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 00:00:04,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:00:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 4422 proven. 716 refuted. 0 times theorem prover too weak. 831 trivial. 0 not checked. [2025-01-09 00:00:05,359 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:00:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 4585 proven. 0 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2025-01-09 00:00:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446002408] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 00:00:05,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 00:00:05,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 10 [2025-01-09 00:00:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759206948] [2025-01-09 00:00:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:00:05,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 00:00:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:00:05,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 00:00:05,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-01-09 00:00:05,855 INFO L87 Difference]: Start difference. First operand 4810 states and 4997 transitions. Second operand has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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) [2025-01-09 00:00:06,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:00:06,272 INFO L93 Difference]: Finished difference Result 10152 states and 10536 transitions. [2025-01-09 00:00:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 00:00:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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) Word has length 1396 [2025-01-09 00:00:06,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:00:06,276 INFO L225 Difference]: With dead ends: 10152 [2025-01-09 00:00:06,276 INFO L226 Difference]: Without dead ends: 5344 [2025-01-09 00:00:06,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2796 GetRequests, 2788 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-01-09 00:00:06,279 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 00:00:06,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 10 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 00:00:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2025-01-09 00:00:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2025-01-09 00:00:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0378985361941047) internal successors, (5176), 4987 states have internal predecessors, (5176), 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) [2025-01-09 00:00:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5176 transitions. [2025-01-09 00:00:06,315 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5176 transitions. Word has length 1396 [2025-01-09 00:00:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:00:06,316 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5176 transitions. [2025-01-09 00:00:06,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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) [2025-01-09 00:00:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5176 transitions. [2025-01-09 00:00:06,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2025-01-09 00:00:06,328 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:00:06,329 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:00:06,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-09 00:00:06,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-01-09 00:00:06,529 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:00:06,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:00:06,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1510299146, now seen corresponding path program 1 times [2025-01-09 00:00:06,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:00:06,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820150448] [2025-01-09 00:00:06,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:00:06,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:00:06,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1646 statements into 1 equivalence classes. [2025-01-09 00:00:06,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1646 of 1646 statements. [2025-01-09 00:00:06,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:00:06,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:00:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8542 backedges. 4927 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2025-01-09 00:00:08,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:00:08,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820150448] [2025-01-09 00:00:08,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820150448] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:00:08,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:00:08,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 00:00:08,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963584933] [2025-01-09 00:00:08,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:00:08,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 00:00:08,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:00:08,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 00:00:08,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 00:00:08,390 INFO L87 Difference]: Start difference. First operand 4988 states and 5176 transitions. Second operand has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 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) [2025-01-09 00:00:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:00:09,627 INFO L93 Difference]: Finished difference Result 11947 states and 12422 transitions. [2025-01-09 00:00:09,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 00:00:09,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 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) Word has length 1646 [2025-01-09 00:00:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:00:09,635 INFO L225 Difference]: With dead ends: 11947 [2025-01-09 00:00:09,635 INFO L226 Difference]: Without dead ends: 6412 [2025-01-09 00:00:09,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 00:00:09,640 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 183 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 2138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-09 00:00:09,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 42 Invalid, 2138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-09 00:00:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2025-01-09 00:00:09,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 5344. [2025-01-09 00:00:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0247052217855137) internal successors, (5475), 5343 states have internal predecessors, (5475), 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) [2025-01-09 00:00:09,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5475 transitions. [2025-01-09 00:00:09,708 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5475 transitions. Word has length 1646 [2025-01-09 00:00:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:00:09,709 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5475 transitions. [2025-01-09 00:00:09,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 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) [2025-01-09 00:00:09,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5475 transitions. [2025-01-09 00:00:09,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1958 [2025-01-09 00:00:09,746 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:00:09,747 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:00:09,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-09 00:00:09,747 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:00:09,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:00:09,748 INFO L85 PathProgramCache]: Analyzing trace with hash -590629945, now seen corresponding path program 1 times [2025-01-09 00:00:09,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:00:09,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444029144] [2025-01-09 00:00:09,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:00:09,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:00:09,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1957 statements into 1 equivalence classes. [2025-01-09 00:00:09,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1957 of 1957 statements. [2025-01-09 00:00:09,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:00:09,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:00:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 11587 backedges. 7553 proven. 1347 refuted. 0 times theorem prover too weak. 2687 trivial. 0 not checked. [2025-01-09 00:00:12,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:00:12,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444029144] [2025-01-09 00:00:12,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444029144] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:00:12,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408004193] [2025-01-09 00:00:12,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:00:12,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:00:12,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:00:12,270 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 00:00:12,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 00:00:12,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1957 statements into 1 equivalence classes. [2025-01-09 00:00:12,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1957 of 1957 statements. [2025-01-09 00:00:12,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:00:12,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:00:12,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 2323 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 00:00:12,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:00:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 11587 backedges. 2061 proven. 0 refuted. 0 times theorem prover too weak. 9526 trivial. 0 not checked. [2025-01-09 00:00:13,023 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 00:00:13,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408004193] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:00:13,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 00:00:13,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2025-01-09 00:00:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332103620] [2025-01-09 00:00:13,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:00:13,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 00:00:13,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:00:13,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 00:00:13,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-01-09 00:00:13,025 INFO L87 Difference]: Start difference. First operand 5344 states and 5475 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2025-01-09 00:00:13,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:00:13,342 INFO L93 Difference]: Finished difference Result 11218 states and 11490 transitions. [2025-01-09 00:00:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 00:00:13,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) Word has length 1957 [2025-01-09 00:00:13,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:00:13,344 INFO L225 Difference]: With dead ends: 11218 [2025-01-09 00:00:13,344 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 00:00:13,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1964 GetRequests, 1956 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-01-09 00:00:13,348 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 51 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 00:00:13,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 217 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 00:00:13,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 00:00:13,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 00:00:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2025-01-09 00:00:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 00:00:13,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1957 [2025-01-09 00:00:13,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:00:13,349 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 00:00:13,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2025-01-09 00:00:13,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 00:00:13,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 00:00:13,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:00:13,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-09 00:00:13,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:00:13,557 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:00:13,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.