./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label03.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_label03.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 d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-08 23:57:01,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-08 23:57:01,984 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-08 23:57:01,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-08 23:57:01,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-08 23:57:02,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-08 23:57:02,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-08 23:57:02,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-08 23:57:02,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-08 23:57:02,023 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-08 23:57:02,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-08 23:57:02,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-08 23:57:02,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-08 23:57:02,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-08 23:57:02,025 INFO L153 SettingsManager]: * Use SBE=true [2025-01-08 23:57:02,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-08 23:57:02,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-08 23:57:02,025 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-08 23:57:02,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-08 23:57:02,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-08 23:57:02,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-08 23:57:02,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-08 23:57:02,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-08 23:57:02,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-08 23:57:02,026 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-08 23:57:02,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-08 23:57:02,027 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-08 23:57:02,027 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-08 23:57:02,027 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-08 23:57:02,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 23:57:02,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 23:57:02,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 23:57:02,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:57:02,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-08 23:57:02,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 23:57:02,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 23:57:02,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 23:57:02,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:57:02,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-08 23:57:02,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-08 23:57:02,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-08 23:57:02,030 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 -> d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 [2025-01-08 23:57:02,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-08 23:57:02,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-08 23:57:02,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-08 23:57:02,312 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-08 23:57:02,312 INFO L274 PluginConnector]: CDTParser initialized [2025-01-08 23:57:02,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2025-01-08 23:57:03,595 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e80780187/785275e2819c471b80e486a07b935280/FLAG4cfa610be [2025-01-08 23:57:03,914 INFO L384 CDTParser]: Found 1 translation units. [2025-01-08 23:57:03,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2025-01-08 23:57:03,925 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e80780187/785275e2819c471b80e486a07b935280/FLAG4cfa610be [2025-01-08 23:57:03,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e80780187/785275e2819c471b80e486a07b935280 [2025-01-08 23:57:03,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-08 23:57:03,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-08 23:57:03,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-08 23:57:03,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-08 23:57:03,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-08 23:57:03,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 11:57:03" (1/1) ... [2025-01-08 23:57:03,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0e58b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:03, skipping insertion in model container [2025-01-08 23:57:03,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 11:57:03" (1/1) ... [2025-01-08 23:57:03,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-08 23:57:04,151 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_label03.c[5277,5290] [2025-01-08 23:57:04,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 23:57:04,309 INFO L200 MainTranslator]: Completed pre-run [2025-01-08 23:57:04,335 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_label03.c[5277,5290] [2025-01-08 23:57:04,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 23:57:04,421 INFO L204 MainTranslator]: Completed translation [2025-01-08 23:57:04,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04 WrapperNode [2025-01-08 23:57:04,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-08 23:57:04,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-08 23:57:04,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-08 23:57:04,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-08 23:57:04,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,508 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 856 [2025-01-08 23:57:04,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-08 23:57:04,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-08 23:57:04,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-08 23:57:04,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-08 23:57:04,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,567 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 23:57:04,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,595 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-08 23:57:04,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-08 23:57:04,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-08 23:57:04,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-08 23:57:04,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (1/1) ... [2025-01-08 23:57:04,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:57:04,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:04,674 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 23:57:04,678 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 23:57:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-08 23:57:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-08 23:57:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-08 23:57:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-08 23:57:04,762 INFO L234 CfgBuilder]: Building ICFG [2025-01-08 23:57:04,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-08 23:57:05,985 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2025-01-08 23:57:05,985 INFO L283 CfgBuilder]: Performing block encoding [2025-01-08 23:57:06,003 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-08 23:57:06,006 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-08 23:57:06,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:57:06 BoogieIcfgContainer [2025-01-08 23:57:06,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-08 23:57:06,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-08 23:57:06,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-08 23:57:06,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-08 23:57:06,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.01 11:57:03" (1/3) ... [2025-01-08 23:57:06,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a4f30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 11:57:06, skipping insertion in model container [2025-01-08 23:57:06,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:57:04" (2/3) ... [2025-01-08 23:57:06,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a4f30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 11:57:06, skipping insertion in model container [2025-01-08 23:57:06,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:57:06" (3/3) ... [2025-01-08 23:57:06,018 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2025-01-08 23:57:06,033 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-08 23:57:06,034 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem14_label03.c that has 1 procedures, 245 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-08 23:57:06,102 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-08 23:57:06,115 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;@61173f91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-08 23:57:06,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-08 23:57:06,122 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 23:57:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-01-08 23:57:06,128 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:06,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:06,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:06,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:06,137 INFO L85 PathProgramCache]: Analyzing trace with hash -700415300, now seen corresponding path program 1 times [2025-01-08 23:57:06,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:06,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247610648] [2025-01-08 23:57:06,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:06,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:06,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-08 23:57:06,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-08 23:57:06,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:06,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:06,526 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 23:57:06,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:06,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247610648] [2025-01-08 23:57:06,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247610648] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:06,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:06,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:57:06,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686759857] [2025-01-08 23:57:06,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:06,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:06,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:06,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:06,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:06,552 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 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 23:57:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:07,473 INFO L93 Difference]: Finished difference Result 669 states and 1197 transitions. [2025-01-08 23:57:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:07,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2025-01-08 23:57:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:07,483 INFO L225 Difference]: With dead ends: 669 [2025-01-08 23:57:07,483 INFO L226 Difference]: Without dead ends: 360 [2025-01-08 23:57:07,487 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 23:57:07,490 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 155 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:07,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 77 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-08 23:57:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-01-08 23:57:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2025-01-08 23:57:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 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 23:57:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2025-01-08 23:57:07,546 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 51 [2025-01-08 23:57:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:07,546 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2025-01-08 23:57:07,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 23:57:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2025-01-08 23:57:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-08 23:57:07,549 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:07,550 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, 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] [2025-01-08 23:57:07,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-08 23:57:07,550 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:07,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:07,551 INFO L85 PathProgramCache]: Analyzing trace with hash 516164652, now seen corresponding path program 1 times [2025-01-08 23:57:07,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:07,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698185105] [2025-01-08 23:57:07,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:07,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:07,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-08 23:57:07,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-08 23:57:07,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:07,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:57:07,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:07,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698185105] [2025-01-08 23:57:07,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698185105] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:07,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:07,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:57:07,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567017847] [2025-01-08 23:57:07,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:07,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:07,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:07,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:07,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:07,828 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 23:57:08,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:08,444 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2025-01-08 23:57:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:08,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 116 [2025-01-08 23:57:08,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:08,451 INFO L225 Difference]: With dead ends: 1074 [2025-01-08 23:57:08,451 INFO L226 Difference]: Without dead ends: 716 [2025-01-08 23:57:08,453 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 23:57:08,456 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:08,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 53 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:57:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2025-01-08 23:57:08,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2025-01-08 23:57:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5605214152700186) internal successors, (838), 537 states have internal predecessors, (838), 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 23:57:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 838 transitions. [2025-01-08 23:57:08,504 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 838 transitions. Word has length 116 [2025-01-08 23:57:08,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:08,504 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 838 transitions. [2025-01-08 23:57:08,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 23:57:08,504 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 838 transitions. [2025-01-08 23:57:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-01-08 23:57:08,506 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:08,506 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, 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] [2025-01-08 23:57:08,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-08 23:57:08,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:08,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:08,510 INFO L85 PathProgramCache]: Analyzing trace with hash 365249935, now seen corresponding path program 1 times [2025-01-08 23:57:08,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:08,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361521616] [2025-01-08 23:57:08,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:08,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:08,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-01-08 23:57:08,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-01-08 23:57:08,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:08,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:57:08,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:08,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361521616] [2025-01-08 23:57:08,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361521616] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:08,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:08,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:08,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878504013] [2025-01-08 23:57:08,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:08,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:08,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:08,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:08,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:57:08,947 INFO L87 Difference]: Start difference. First operand 538 states and 838 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 23:57:10,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:10,017 INFO L93 Difference]: Finished difference Result 1608 states and 2466 transitions. [2025-01-08 23:57:10,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:10,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2025-01-08 23:57:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:10,023 INFO L225 Difference]: With dead ends: 1608 [2025-01-08 23:57:10,023 INFO L226 Difference]: Without dead ends: 1072 [2025-01-08 23:57:10,024 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 23:57:10,025 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 434 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:10,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 116 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-08 23:57:10,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2025-01-08 23:57:10,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2025-01-08 23:57:10,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.3426704014939308) internal successors, (1438), 1071 states have internal predecessors, (1438), 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 23:57:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1438 transitions. [2025-01-08 23:57:10,059 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1438 transitions. Word has length 130 [2025-01-08 23:57:10,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:10,059 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1438 transitions. [2025-01-08 23:57:10,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 23:57:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1438 transitions. [2025-01-08 23:57:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2025-01-08 23:57:10,064 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:10,064 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:10,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-08 23:57:10,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:10,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash 950052671, now seen corresponding path program 1 times [2025-01-08 23:57:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745259188] [2025-01-08 23:57:10,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:10,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:10,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-01-08 23:57:10,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-01-08 23:57:10,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:10,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-01-08 23:57:10,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:10,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745259188] [2025-01-08 23:57:10,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745259188] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:10,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:10,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:57:10,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814508842] [2025-01-08 23:57:10,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:10,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:10,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:10,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:10,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:10,263 INFO L87 Difference]: Start difference. First operand 1072 states and 1438 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 23:57:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:10,909 INFO L93 Difference]: Finished difference Result 2320 states and 3226 transitions. [2025-01-08 23:57:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:10,910 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 196 [2025-01-08 23:57:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:10,917 INFO L225 Difference]: With dead ends: 2320 [2025-01-08 23:57:10,918 INFO L226 Difference]: Without dead ends: 1428 [2025-01-08 23:57:10,920 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 23:57:10,921 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:10,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:57:10,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2025-01-08 23:57:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2025-01-08 23:57:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.2782060266292923) internal successors, (1824), 1427 states have internal predecessors, (1824), 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 23:57:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1824 transitions. [2025-01-08 23:57:10,955 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1824 transitions. Word has length 196 [2025-01-08 23:57:10,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:10,956 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1824 transitions. [2025-01-08 23:57:10,956 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 23:57:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1824 transitions. [2025-01-08 23:57:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-01-08 23:57:10,960 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:10,960 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, 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, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:10,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-08 23:57:10,961 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:10,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:10,962 INFO L85 PathProgramCache]: Analyzing trace with hash -650999012, now seen corresponding path program 1 times [2025-01-08 23:57:10,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:10,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910503328] [2025-01-08 23:57:10,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:10,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:10,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-01-08 23:57:11,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-01-08 23:57:11,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:11,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-01-08 23:57:11,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:11,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910503328] [2025-01-08 23:57:11,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910503328] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:11,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:11,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:11,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708333078] [2025-01-08 23:57:11,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:11,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:11,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:11,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:57:11,260 INFO L87 Difference]: Start difference. First operand 1428 states and 1824 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 23:57:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:12,021 INFO L93 Difference]: Finished difference Result 3063 states and 3981 transitions. [2025-01-08 23:57:12,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:12,021 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 210 [2025-01-08 23:57:12,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:12,028 INFO L225 Difference]: With dead ends: 3063 [2025-01-08 23:57:12,028 INFO L226 Difference]: Without dead ends: 1786 [2025-01-08 23:57:12,030 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 23:57:12,030 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 112 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:12,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 115 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-08 23:57:12,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2025-01-08 23:57:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1606. [2025-01-08 23:57:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1439252336448598) internal successors, (1836), 1605 states have internal predecessors, (1836), 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 23:57:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1836 transitions. [2025-01-08 23:57:12,064 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1836 transitions. Word has length 210 [2025-01-08 23:57:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:12,064 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1836 transitions. [2025-01-08 23:57:12,064 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 23:57:12,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1836 transitions. [2025-01-08 23:57:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2025-01-08 23:57:12,068 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:12,068 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, 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, 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 23:57:12,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-08 23:57:12,069 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:12,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1300594287, now seen corresponding path program 1 times [2025-01-08 23:57:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:12,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894345441] [2025-01-08 23:57:12,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:12,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:12,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 341 statements into 1 equivalence classes. [2025-01-08 23:57:12,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 341 of 341 statements. [2025-01-08 23:57:12,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:12,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 253 proven. 100 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-08 23:57:12,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:12,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894345441] [2025-01-08 23:57:12,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894345441] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:12,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294694199] [2025-01-08 23:57:12,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:12,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:12,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:12,724 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 23:57:12,725 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 23:57:12,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 341 statements into 1 equivalence classes. [2025-01-08 23:57:12,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 341 of 341 statements. [2025-01-08 23:57:12,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:12,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:12,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:57:12,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-01-08 23:57:12,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:12,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294694199] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:12,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:12,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:57:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310930344] [2025-01-08 23:57:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:12,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:12,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:13,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:13,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:57:13,000 INFO L87 Difference]: Start difference. First operand 1606 states and 1836 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 23:57:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:13,514 INFO L93 Difference]: Finished difference Result 1964 states and 2254 transitions. [2025-01-08 23:57:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:13,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 341 [2025-01-08 23:57:13,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:13,522 INFO L225 Difference]: With dead ends: 1964 [2025-01-08 23:57:13,522 INFO L226 Difference]: Without dead ends: 1962 [2025-01-08 23:57:13,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:57:13,524 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 151 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:13,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 11 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:13,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2025-01-08 23:57:13,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1606. [2025-01-08 23:57:13,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1439252336448598) internal successors, (1836), 1605 states have internal predecessors, (1836), 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 23:57:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1836 transitions. [2025-01-08 23:57:13,558 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1836 transitions. Word has length 341 [2025-01-08 23:57:13,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:13,559 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1836 transitions. [2025-01-08 23:57:13,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 23:57:13,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1836 transitions. [2025-01-08 23:57:13,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2025-01-08 23:57:13,565 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:13,566 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-08 23:57:13,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-08 23:57:13,767 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 23:57:13,767 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:13,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:13,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1272582652, now seen corresponding path program 1 times [2025-01-08 23:57:13,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:13,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145158553] [2025-01-08 23:57:13,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:13,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:13,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 423 statements into 1 equivalence classes. [2025-01-08 23:57:13,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 423 of 423 statements. [2025-01-08 23:57:13,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:13,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 225 proven. 130 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-08 23:57:14,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:14,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145158553] [2025-01-08 23:57:14,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145158553] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:14,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193463402] [2025-01-08 23:57:14,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:14,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:14,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:14,752 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 23:57:14,755 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 23:57:14,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 423 statements into 1 equivalence classes. [2025-01-08 23:57:14,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 423 of 423 statements. [2025-01-08 23:57:14,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:14,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:14,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:57:14,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2025-01-08 23:57:15,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:15,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193463402] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:15,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:15,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-01-08 23:57:15,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142883776] [2025-01-08 23:57:15,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:15,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:15,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:15,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:15,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:15,026 INFO L87 Difference]: Start difference. First operand 1606 states and 1836 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 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 23:57:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:15,609 INFO L93 Difference]: Finished difference Result 2142 states and 2521 transitions. [2025-01-08 23:57:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 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 423 [2025-01-08 23:57:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:15,618 INFO L225 Difference]: With dead ends: 2142 [2025-01-08 23:57:15,618 INFO L226 Difference]: Without dead ends: 2140 [2025-01-08 23:57:15,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:15,620 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 134 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:15,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 27 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:15,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2025-01-08 23:57:15,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1428. [2025-01-08 23:57:15,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1590749824807287) internal successors, (1654), 1427 states have internal predecessors, (1654), 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 23:57:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1654 transitions. [2025-01-08 23:57:15,660 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1654 transitions. Word has length 423 [2025-01-08 23:57:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:15,661 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1654 transitions. [2025-01-08 23:57:15,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 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 23:57:15,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1654 transitions. [2025-01-08 23:57:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2025-01-08 23:57:15,681 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:15,681 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, 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, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:15,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-08 23:57:15,881 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 23:57:15,882 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:15,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:15,883 INFO L85 PathProgramCache]: Analyzing trace with hash 550304506, now seen corresponding path program 1 times [2025-01-08 23:57:15,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:15,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950576697] [2025-01-08 23:57:15,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:15,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:15,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 470 statements into 1 equivalence classes. [2025-01-08 23:57:15,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 470 of 470 statements. [2025-01-08 23:57:15,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:15,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 524 proven. 130 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-01-08 23:57:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:16,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950576697] [2025-01-08 23:57:16,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950576697] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:16,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268958998] [2025-01-08 23:57:16,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:16,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:16,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:16,764 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 23:57:16,766 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 23:57:16,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 470 statements into 1 equivalence classes. [2025-01-08 23:57:16,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 470 of 470 statements. [2025-01-08 23:57:16,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:16,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:16,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:57:16,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:16,997 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2025-01-08 23:57:16,997 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:16,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268958998] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:16,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:16,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-01-08 23:57:16,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792850879] [2025-01-08 23:57:16,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:16,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:16,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:17,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:17,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:17,001 INFO L87 Difference]: Start difference. First operand 1428 states and 1654 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 23:57:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:17,576 INFO L93 Difference]: Finished difference Result 3388 states and 4012 transitions. [2025-01-08 23:57:17,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:17,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 470 [2025-01-08 23:57:17,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:17,584 INFO L225 Difference]: With dead ends: 3388 [2025-01-08 23:57:17,585 INFO L226 Difference]: Without dead ends: 2140 [2025-01-08 23:57:17,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 469 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 23:57:17,587 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:17,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 235 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:17,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2025-01-08 23:57:17,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2025-01-08 23:57:17,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1514533401325855) internal successors, (2258), 1961 states have internal predecessors, (2258), 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 23:57:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2258 transitions. [2025-01-08 23:57:17,644 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2258 transitions. Word has length 470 [2025-01-08 23:57:17,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:17,645 INFO L471 AbstractCegarLoop]: Abstraction has 1962 states and 2258 transitions. [2025-01-08 23:57:17,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 23:57:17,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2258 transitions. [2025-01-08 23:57:17,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2025-01-08 23:57:17,653 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:17,653 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, 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, 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] [2025-01-08 23:57:17,661 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 23:57:17,854 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 23:57:17,854 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:17,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:17,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1415677225, now seen corresponding path program 1 times [2025-01-08 23:57:17,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:17,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877696159] [2025-01-08 23:57:17,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:17,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:17,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 495 statements into 1 equivalence classes. [2025-01-08 23:57:17,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 495 of 495 statements. [2025-01-08 23:57:17,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:17,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 543 proven. 130 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-01-08 23:57:18,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:18,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877696159] [2025-01-08 23:57:18,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877696159] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:18,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174502862] [2025-01-08 23:57:18,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:18,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:18,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:18,643 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 23:57:18,646 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 23:57:18,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 495 statements into 1 equivalence classes. [2025-01-08 23:57:18,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 495 of 495 statements. [2025-01-08 23:57:18,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:18,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:18,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:57:18,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-01-08 23:57:19,218 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:19,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174502862] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:19,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:19,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-01-08 23:57:19,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719610876] [2025-01-08 23:57:19,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:19,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:19,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:19,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:19,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:19,221 INFO L87 Difference]: Start difference. First operand 1962 states and 2258 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 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 23:57:19,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:19,718 INFO L93 Difference]: Finished difference Result 4634 states and 5326 transitions. [2025-01-08 23:57:19,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:19,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 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 495 [2025-01-08 23:57:19,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:19,728 INFO L225 Difference]: With dead ends: 4634 [2025-01-08 23:57:19,729 INFO L226 Difference]: Without dead ends: 2852 [2025-01-08 23:57:19,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 494 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 23:57:19,733 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:19,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 55 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2025-01-08 23:57:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2025-01-08 23:57:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1387953610175832) internal successors, (3044), 2673 states have internal predecessors, (3044), 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 23:57:19,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3044 transitions. [2025-01-08 23:57:19,790 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3044 transitions. Word has length 495 [2025-01-08 23:57:19,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:19,791 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 3044 transitions. [2025-01-08 23:57:19,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 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 23:57:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3044 transitions. [2025-01-08 23:57:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2025-01-08 23:57:19,801 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:19,802 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, 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, 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, 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 23:57:19,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-08 23:57:20,006 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 23:57:20,006 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:20,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:20,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1406213713, now seen corresponding path program 1 times [2025-01-08 23:57:20,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054116221] [2025-01-08 23:57:20,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:20,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:20,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 564 statements into 1 equivalence classes. [2025-01-08 23:57:20,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 564 of 564 statements. [2025-01-08 23:57:20,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:20,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 841 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2025-01-08 23:57:20,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:20,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054116221] [2025-01-08 23:57:20,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054116221] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:20,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:20,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:20,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995282716] [2025-01-08 23:57:20,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:20,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:20,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:20,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:20,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:20,398 INFO L87 Difference]: Start difference. First operand 2674 states and 3044 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 23:57:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:20,914 INFO L93 Difference]: Finished difference Result 5702 states and 6514 transitions. [2025-01-08 23:57:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:20,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 564 [2025-01-08 23:57:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:20,926 INFO L225 Difference]: With dead ends: 5702 [2025-01-08 23:57:20,926 INFO L226 Difference]: Without dead ends: 3208 [2025-01-08 23:57:20,929 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 23:57:20,930 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:20,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:20,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2025-01-08 23:57:20,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2025-01-08 23:57:20,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.1261142291185209) internal successors, (3411), 3029 states have internal predecessors, (3411), 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 23:57:20,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3411 transitions. [2025-01-08 23:57:20,990 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3411 transitions. Word has length 564 [2025-01-08 23:57:20,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:20,991 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 3411 transitions. [2025-01-08 23:57:20,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 23:57:20,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3411 transitions. [2025-01-08 23:57:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2025-01-08 23:57:20,998 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:20,998 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-01-08 23:57:20,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-08 23:57:20,998 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:20,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash 597832822, now seen corresponding path program 1 times [2025-01-08 23:57:21,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:21,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972552914] [2025-01-08 23:57:21,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:21,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:21,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 575 statements into 1 equivalence classes. [2025-01-08 23:57:21,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 575 of 575 statements. [2025-01-08 23:57:21,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:21,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:21,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 784 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2025-01-08 23:57:21,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:21,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972552914] [2025-01-08 23:57:21,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972552914] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:21,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:21,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:21,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444172015] [2025-01-08 23:57:21,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:21,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:21,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:21,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:21,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:57:21,351 INFO L87 Difference]: Start difference. First operand 3030 states and 3411 transitions. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 3 states have internal predecessors, (267), 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 23:57:21,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:21,964 INFO L93 Difference]: Finished difference Result 6087 states and 6871 transitions. [2025-01-08 23:57:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 3 states have internal predecessors, (267), 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 575 [2025-01-08 23:57:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:21,975 INFO L225 Difference]: With dead ends: 6087 [2025-01-08 23:57:21,975 INFO L226 Difference]: Without dead ends: 3208 [2025-01-08 23:57:21,979 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 23:57:21,979 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:21,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:57:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2025-01-08 23:57:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2025-01-08 23:57:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0960713106635853) internal successors, (3320), 3029 states have internal predecessors, (3320), 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 23:57:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3320 transitions. [2025-01-08 23:57:22,034 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3320 transitions. Word has length 575 [2025-01-08 23:57:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:22,035 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 3320 transitions. [2025-01-08 23:57:22,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 3 states have internal predecessors, (267), 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 23:57:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3320 transitions. [2025-01-08 23:57:22,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2025-01-08 23:57:22,041 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:22,041 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-08 23:57:22,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-08 23:57:22,042 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:22,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:22,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1993896773, now seen corresponding path program 1 times [2025-01-08 23:57:22,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:22,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703680250] [2025-01-08 23:57:22,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:22,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:22,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 586 statements into 1 equivalence classes. [2025-01-08 23:57:22,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 586 of 586 statements. [2025-01-08 23:57:22,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:22,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 643 proven. 23 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2025-01-08 23:57:22,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:22,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703680250] [2025-01-08 23:57:22,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703680250] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:22,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059306079] [2025-01-08 23:57:22,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:22,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:22,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:22,604 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 23:57:22,606 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 23:57:22,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 586 statements into 1 equivalence classes. [2025-01-08 23:57:22,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 586 of 586 statements. [2025-01-08 23:57:22,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:22,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:22,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:57:22,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2025-01-08 23:57:23,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:23,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059306079] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:23,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:23,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:57:23,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685818909] [2025-01-08 23:57:23,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:23,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:23,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:23,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:23,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:23,362 INFO L87 Difference]: Start difference. First operand 3030 states and 3320 transitions. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 3 states have internal predecessors, (414), 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 23:57:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:24,042 INFO L93 Difference]: Finished difference Result 6414 states and 7050 transitions. [2025-01-08 23:57:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:24,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 3 states have internal predecessors, (414), 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 586 [2025-01-08 23:57:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:24,055 INFO L225 Difference]: With dead ends: 6414 [2025-01-08 23:57:24,055 INFO L226 Difference]: Without dead ends: 3564 [2025-01-08 23:57:24,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 584 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 23:57:24,059 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 187 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:24,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 45 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:57:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2025-01-08 23:57:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2025-01-08 23:57:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0944808231992516) internal successors, (3510), 3207 states have internal predecessors, (3510), 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 23:57:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3510 transitions. [2025-01-08 23:57:24,112 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3510 transitions. Word has length 586 [2025-01-08 23:57:24,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:24,112 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3510 transitions. [2025-01-08 23:57:24,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 3 states have internal predecessors, (414), 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 23:57:24,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3510 transitions. [2025-01-08 23:57:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2025-01-08 23:57:24,119 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:24,120 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:24,128 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 23:57:24,320 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 23:57:24,321 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:24,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:24,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2031195943, now seen corresponding path program 1 times [2025-01-08 23:57:24,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:24,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979260937] [2025-01-08 23:57:24,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:24,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:24,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 675 statements into 1 equivalence classes. [2025-01-08 23:57:24,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 675 of 675 statements. [2025-01-08 23:57:24,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:24,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:24,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 873 proven. 93 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-01-08 23:57:24,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:24,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979260937] [2025-01-08 23:57:24,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979260937] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:24,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942484221] [2025-01-08 23:57:24,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:24,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:24,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:24,880 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 23:57:24,882 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 23:57:24,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 675 statements into 1 equivalence classes. [2025-01-08 23:57:25,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 675 of 675 statements. [2025-01-08 23:57:25,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:25,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:25,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:57:25,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 966 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-01-08 23:57:25,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:25,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942484221] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:25,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:25,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:57:25,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829628147] [2025-01-08 23:57:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:25,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:25,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:25,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:25,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:57:25,290 INFO L87 Difference]: Start difference. First operand 3208 states and 3510 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 23:57:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:25,722 INFO L93 Difference]: Finished difference Result 7126 states and 7830 transitions. [2025-01-08 23:57:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:25,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 675 [2025-01-08 23:57:25,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:25,734 INFO L225 Difference]: With dead ends: 7126 [2025-01-08 23:57:25,734 INFO L226 Difference]: Without dead ends: 3920 [2025-01-08 23:57:25,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 674 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 23:57:25,741 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:25,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 50 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:57:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2025-01-08 23:57:25,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2025-01-08 23:57:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0875223271242664) internal successors, (4262), 3919 states have internal predecessors, (4262), 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 23:57:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4262 transitions. [2025-01-08 23:57:25,801 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4262 transitions. Word has length 675 [2025-01-08 23:57:25,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:25,801 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 4262 transitions. [2025-01-08 23:57:25,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 23:57:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4262 transitions. [2025-01-08 23:57:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2025-01-08 23:57:25,815 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:25,815 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, 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, 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, 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] [2025-01-08 23:57:25,823 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 23:57:26,015 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 23:57:26,016 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:26,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:26,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1664957097, now seen corresponding path program 1 times [2025-01-08 23:57:26,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:26,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685327046] [2025-01-08 23:57:26,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:26,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:26,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 677 statements into 1 equivalence classes. [2025-01-08 23:57:26,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 677 of 677 statements. [2025-01-08 23:57:26,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:26,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:26,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1700 backedges. 1180 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2025-01-08 23:57:26,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:26,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685327046] [2025-01-08 23:57:26,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685327046] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:26,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:26,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:26,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696474947] [2025-01-08 23:57:26,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:26,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:26,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:26,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:26,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:26,418 INFO L87 Difference]: Start difference. First operand 3920 states and 4262 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 23:57:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:26,846 INFO L93 Difference]: Finished difference Result 8016 states and 8725 transitions. [2025-01-08 23:57:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:26,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 677 [2025-01-08 23:57:26,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:26,854 INFO L225 Difference]: With dead ends: 8016 [2025-01-08 23:57:26,854 INFO L226 Difference]: Without dead ends: 4098 [2025-01-08 23:57:26,857 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 23:57:26,858 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 112 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:26,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 240 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:57:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2025-01-08 23:57:26,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2025-01-08 23:57:26,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.083400160384924) internal successors, (4053), 3741 states have internal predecessors, (4053), 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 23:57:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4053 transitions. [2025-01-08 23:57:26,911 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4053 transitions. Word has length 677 [2025-01-08 23:57:26,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:26,911 INFO L471 AbstractCegarLoop]: Abstraction has 3742 states and 4053 transitions. [2025-01-08 23:57:26,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 23:57:26,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4053 transitions. [2025-01-08 23:57:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2025-01-08 23:57:26,920 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:26,921 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 23:57:26,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-08 23:57:26,921 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:26,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:26,922 INFO L85 PathProgramCache]: Analyzing trace with hash 848205608, now seen corresponding path program 1 times [2025-01-08 23:57:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:26,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810412700] [2025-01-08 23:57:26,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:26,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:26,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-01-08 23:57:27,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-01-08 23:57:27,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:27,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-01-08 23:57:27,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:27,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810412700] [2025-01-08 23:57:27,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810412700] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:27,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418891256] [2025-01-08 23:57:27,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:27,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:27,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:27,448 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 23:57:27,450 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 23:57:27,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-01-08 23:57:27,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-01-08 23:57:27,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:27,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:27,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:57:27,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-01-08 23:57:28,024 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 23:57:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2025-01-08 23:57:28,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418891256] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 23:57:28,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 23:57:28,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-01-08 23:57:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658815317] [2025-01-08 23:57:28,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 23:57:28,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-08 23:57:28,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:28,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-08 23:57:28,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:57:28,351 INFO L87 Difference]: Start difference. First operand 3742 states and 4053 transitions. Second operand has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 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 23:57:29,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:29,145 INFO L93 Difference]: Finished difference Result 8728 states and 9476 transitions. [2025-01-08 23:57:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-08 23:57:29,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 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 830 [2025-01-08 23:57:29,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:29,156 INFO L225 Difference]: With dead ends: 8728 [2025-01-08 23:57:29,156 INFO L226 Difference]: Without dead ends: 4988 [2025-01-08 23:57:29,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1662 GetRequests, 1658 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 23:57:29,160 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 70 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:29,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 56 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-08 23:57:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2025-01-08 23:57:29,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4454. [2025-01-08 23:57:29,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0837637547720638) internal successors, (4826), 4453 states have internal predecessors, (4826), 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 23:57:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4826 transitions. [2025-01-08 23:57:29,212 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4826 transitions. Word has length 830 [2025-01-08 23:57:29,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:29,212 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 4826 transitions. [2025-01-08 23:57:29,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 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 23:57:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4826 transitions. [2025-01-08 23:57:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2025-01-08 23:57:29,221 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:29,221 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, 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, 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, 4, 4, 3, 3, 3, 3, 3, 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] [2025-01-08 23:57:29,230 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 23:57:29,423 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 23:57:29,423 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:29,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:29,424 INFO L85 PathProgramCache]: Analyzing trace with hash -352335592, now seen corresponding path program 1 times [2025-01-08 23:57:29,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:29,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636338855] [2025-01-08 23:57:29,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:29,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:29,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-01-08 23:57:29,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-01-08 23:57:29,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:29,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 1531 proven. 0 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2025-01-08 23:57:29,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:29,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636338855] [2025-01-08 23:57:29,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636338855] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:29,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:29,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933469638] [2025-01-08 23:57:29,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:29,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:29,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:29,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:29,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:29,997 INFO L87 Difference]: Start difference. First operand 4454 states and 4826 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) [2025-01-08 23:57:30,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:30,451 INFO L93 Difference]: Finished difference Result 9974 states and 10839 transitions. [2025-01-08 23:57:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:30,452 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 832 [2025-01-08 23:57:30,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:30,462 INFO L225 Difference]: With dead ends: 9974 [2025-01-08 23:57:30,462 INFO L226 Difference]: Without dead ends: 5522 [2025-01-08 23:57:30,467 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 23:57:30,468 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:30,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 239 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:57:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2025-01-08 23:57:30,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5166. [2025-01-08 23:57:30,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0640851887705711) internal successors, (5496), 5165 states have internal predecessors, (5496), 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 23:57:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5496 transitions. [2025-01-08 23:57:30,525 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5496 transitions. Word has length 832 [2025-01-08 23:57:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:30,525 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5496 transitions. [2025-01-08 23:57:30,526 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) [2025-01-08 23:57:30,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5496 transitions. [2025-01-08 23:57:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2025-01-08 23:57:30,535 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:30,535 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, 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, 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, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:30,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-08 23:57:30,536 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:30,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:30,536 INFO L85 PathProgramCache]: Analyzing trace with hash 239689541, now seen corresponding path program 1 times [2025-01-08 23:57:30,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:30,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585850394] [2025-01-08 23:57:30,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:30,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:30,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 850 statements into 1 equivalence classes. [2025-01-08 23:57:30,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 850 of 850 statements. [2025-01-08 23:57:30,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:30,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 1667 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2025-01-08 23:57:31,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:31,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585850394] [2025-01-08 23:57:31,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585850394] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:31,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:31,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:31,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685233435] [2025-01-08 23:57:31,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:31,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:31,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:31,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:31,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:31,049 INFO L87 Difference]: Start difference. First operand 5166 states and 5496 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 23:57:31,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:31,419 INFO L93 Difference]: Finished difference Result 10864 states and 11542 transitions. [2025-01-08 23:57:31,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:31,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 850 [2025-01-08 23:57:31,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:31,431 INFO L225 Difference]: With dead ends: 10864 [2025-01-08 23:57:31,431 INFO L226 Difference]: Without dead ends: 5700 [2025-01-08 23:57:31,436 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 23:57:31,436 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:31,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 23:57:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2025-01-08 23:57:31,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5522. [2025-01-08 23:57:31,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0626698061945299) internal successors, (5867), 5521 states have internal predecessors, (5867), 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 23:57:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5867 transitions. [2025-01-08 23:57:31,497 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5867 transitions. Word has length 850 [2025-01-08 23:57:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:31,497 INFO L471 AbstractCegarLoop]: Abstraction has 5522 states and 5867 transitions. [2025-01-08 23:57:31,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 23:57:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5867 transitions. [2025-01-08 23:57:31,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2025-01-08 23:57:31,507 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:31,507 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, 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, 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, 5, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:31,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-08 23:57:31,508 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:31,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:31,508 INFO L85 PathProgramCache]: Analyzing trace with hash 398469895, now seen corresponding path program 1 times [2025-01-08 23:57:31,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:31,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353146805] [2025-01-08 23:57:31,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:31,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:31,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 927 statements into 1 equivalence classes. [2025-01-08 23:57:31,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 927 of 927 statements. [2025-01-08 23:57:31,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:31,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 1803 proven. 0 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2025-01-08 23:57:32,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:32,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353146805] [2025-01-08 23:57:32,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353146805] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:32,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:32,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:32,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261182941] [2025-01-08 23:57:32,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:32,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:32,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:32,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:32,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:57:32,169 INFO L87 Difference]: Start difference. First operand 5522 states and 5867 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 23:57:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:32,532 INFO L93 Difference]: Finished difference Result 11754 states and 12521 transitions. [2025-01-08 23:57:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:32,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 927 [2025-01-08 23:57:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:32,546 INFO L225 Difference]: With dead ends: 11754 [2025-01-08 23:57:32,547 INFO L226 Difference]: Without dead ends: 6234 [2025-01-08 23:57:32,552 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 23:57:32,553 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 113 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:32,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 232 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 23:57:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2025-01-08 23:57:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5878. [2025-01-08 23:57:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0617662072485963) internal successors, (6240), 5877 states have internal predecessors, (6240), 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 23:57:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6240 transitions. [2025-01-08 23:57:32,623 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6240 transitions. Word has length 927 [2025-01-08 23:57:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:32,624 INFO L471 AbstractCegarLoop]: Abstraction has 5878 states and 6240 transitions. [2025-01-08 23:57:32,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 23:57:32,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6240 transitions. [2025-01-08 23:57:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2025-01-08 23:57:32,634 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:32,635 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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:32,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-08 23:57:32,635 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:32,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1036958422, now seen corresponding path program 1 times [2025-01-08 23:57:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:32,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648955781] [2025-01-08 23:57:32,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:32,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:32,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 997 statements into 1 equivalence classes. [2025-01-08 23:57:32,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 997 of 997 statements. [2025-01-08 23:57:32,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:32,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3061 backedges. 2045 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2025-01-08 23:57:33,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:33,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648955781] [2025-01-08 23:57:33,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648955781] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:33,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808825023] [2025-01-08 23:57:33,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:33,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:33,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:33,845 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 23:57:33,847 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 23:57:33,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 997 statements into 1 equivalence classes. [2025-01-08 23:57:34,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 997 of 997 statements. [2025-01-08 23:57:34,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:34,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:34,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 23:57:34,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3061 backedges. 2002 proven. 668 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2025-01-08 23:57:34,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 23:57:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3061 backedges. 2117 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2025-01-08 23:57:35,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808825023] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:35,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-08 23:57:35,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2025-01-08 23:57:35,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061375694] [2025-01-08 23:57:35,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:35,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-08 23:57:35,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:35,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-08 23:57:35,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-08 23:57:35,466 INFO L87 Difference]: Start difference. First operand 5878 states and 6240 transitions. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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 23:57:35,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:35,984 INFO L93 Difference]: Finished difference Result 11754 states and 12478 transitions. [2025-01-08 23:57:35,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:35,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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 997 [2025-01-08 23:57:35,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:35,994 INFO L225 Difference]: With dead ends: 11754 [2025-01-08 23:57:35,994 INFO L226 Difference]: Without dead ends: 5878 [2025-01-08 23:57:35,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1997 GetRequests, 1989 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 23:57:35,999 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 89 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:35,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 9 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:36,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2025-01-08 23:57:36,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2025-01-08 23:57:36,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0581929555895866) internal successors, (6219), 5877 states have internal predecessors, (6219), 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 23:57:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6219 transitions. [2025-01-08 23:57:36,057 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6219 transitions. Word has length 997 [2025-01-08 23:57:36,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:36,058 INFO L471 AbstractCegarLoop]: Abstraction has 5878 states and 6219 transitions. [2025-01-08 23:57:36,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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 23:57:36,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6219 transitions. [2025-01-08 23:57:36,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2025-01-08 23:57:36,095 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:36,096 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 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 23:57:36,105 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 23:57:36,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:36,301 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:36,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:36,302 INFO L85 PathProgramCache]: Analyzing trace with hash 116754669, now seen corresponding path program 1 times [2025-01-08 23:57:36,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:36,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358112098] [2025-01-08 23:57:36,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:36,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:36,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1019 statements into 1 equivalence classes. [2025-01-08 23:57:36,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1019 of 1019 statements. [2025-01-08 23:57:36,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:36,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3261 backedges. 1678 proven. 0 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2025-01-08 23:57:37,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:37,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358112098] [2025-01-08 23:57:37,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358112098] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:37,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:37,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-08 23:57:37,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833076998] [2025-01-08 23:57:37,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:37,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-08 23:57:37,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:37,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-08 23:57:37,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:37,154 INFO L87 Difference]: Start difference. First operand 5878 states and 6219 transitions. Second operand has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 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 23:57:37,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:37,710 INFO L93 Difference]: Finished difference Result 11598 states and 12252 transitions. [2025-01-08 23:57:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-08 23:57:37,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 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 1019 [2025-01-08 23:57:37,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:37,722 INFO L225 Difference]: With dead ends: 11598 [2025-01-08 23:57:37,723 INFO L226 Difference]: Without dead ends: 5522 [2025-01-08 23:57:37,728 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 23:57:37,729 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 50 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:37,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 31 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2025-01-08 23:57:37,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2025-01-08 23:57:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0458543889200824) internal successors, (5588), 5343 states have internal predecessors, (5588), 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 23:57:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5588 transitions. [2025-01-08 23:57:37,790 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5588 transitions. Word has length 1019 [2025-01-08 23:57:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:37,791 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5588 transitions. [2025-01-08 23:57:37,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 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 23:57:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5588 transitions. [2025-01-08 23:57:37,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2025-01-08 23:57:37,802 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:37,803 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, 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, 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, 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 23:57:37,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-08 23:57:37,803 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:37,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:37,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1095606029, now seen corresponding path program 1 times [2025-01-08 23:57:37,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:37,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222835236] [2025-01-08 23:57:37,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:37,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:37,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1120 statements into 1 equivalence classes. [2025-01-08 23:57:37,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1120 of 1120 statements. [2025-01-08 23:57:37,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:37,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3951 backedges. 2886 proven. 72 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2025-01-08 23:57:39,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:39,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222835236] [2025-01-08 23:57:39,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222835236] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:39,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406529354] [2025-01-08 23:57:39,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:39,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:39,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:39,021 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 23:57:39,023 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 23:57:39,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1120 statements into 1 equivalence classes. [2025-01-08 23:57:39,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1120 of 1120 statements. [2025-01-08 23:57:39,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:39,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:39,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:57:39,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3951 backedges. 1285 proven. 0 refuted. 0 times theorem prover too weak. 2666 trivial. 0 not checked. [2025-01-08 23:57:39,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:39,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406529354] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:39,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:39,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-08 23:57:39,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673668106] [2025-01-08 23:57:39,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:39,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:39,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:39,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:39,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:57:39,419 INFO L87 Difference]: Start difference. First operand 5344 states and 5588 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 23:57:39,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:39,808 INFO L93 Difference]: Finished difference Result 10864 states and 11353 transitions. [2025-01-08 23:57:39,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:39,809 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 1120 [2025-01-08 23:57:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:39,817 INFO L225 Difference]: With dead ends: 10864 [2025-01-08 23:57:39,817 INFO L226 Difference]: Without dead ends: 5344 [2025-01-08 23:57:39,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:57:39,823 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 54 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:39,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 231 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:57:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2025-01-08 23:57:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2025-01-08 23:57:39,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.042672655811342) internal successors, (5571), 5343 states have internal predecessors, (5571), 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 23:57:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5571 transitions. [2025-01-08 23:57:39,876 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5571 transitions. Word has length 1120 [2025-01-08 23:57:39,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:39,876 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5571 transitions. [2025-01-08 23:57:39,877 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 23:57:39,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5571 transitions. [2025-01-08 23:57:39,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1224 [2025-01-08 23:57:39,890 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:39,890 INFO L218 NwaCegarLoop]: trace histogram [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, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:39,901 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 23:57:40,094 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 23:57:40,094 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:40,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:40,095 INFO L85 PathProgramCache]: Analyzing trace with hash -315381173, now seen corresponding path program 1 times [2025-01-08 23:57:40,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:40,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769400068] [2025-01-08 23:57:40,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:40,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:40,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1223 statements into 1 equivalence classes. [2025-01-08 23:57:40,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1223 of 1223 statements. [2025-01-08 23:57:40,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:40,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4856 backedges. 2081 proven. 0 refuted. 0 times theorem prover too weak. 2775 trivial. 0 not checked. [2025-01-08 23:57:40,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:40,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769400068] [2025-01-08 23:57:40,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769400068] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:40,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:57:40,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:57:40,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552285896] [2025-01-08 23:57:40,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:40,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:40,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:40,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:40,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:57:40,760 INFO L87 Difference]: Start difference. First operand 5344 states and 5571 transitions. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 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 23:57:41,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:41,193 INFO L93 Difference]: Finished difference Result 10352 states and 10794 transitions. [2025-01-08 23:57:41,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:41,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 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 1223 [2025-01-08 23:57:41,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:41,202 INFO L225 Difference]: With dead ends: 10352 [2025-01-08 23:57:41,202 INFO L226 Difference]: Without dead ends: 5166 [2025-01-08 23:57:41,208 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 23:57:41,210 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 40 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:41,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 17 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:57:41,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2025-01-08 23:57:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2025-01-08 23:57:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0408518877057116) internal successors, (5376), 5165 states have internal predecessors, (5376), 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 23:57:41,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5376 transitions. [2025-01-08 23:57:41,287 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5376 transitions. Word has length 1223 [2025-01-08 23:57:41,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:41,288 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5376 transitions. [2025-01-08 23:57:41,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 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 23:57:41,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5376 transitions. [2025-01-08 23:57:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2025-01-08 23:57:41,313 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:41,313 INFO L218 NwaCegarLoop]: trace histogram [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, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:41,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-08 23:57:41,313 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:41,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:41,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1679816613, now seen corresponding path program 1 times [2025-01-08 23:57:41,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:41,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017496384] [2025-01-08 23:57:41,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:41,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:41,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1241 statements into 1 equivalence classes. [2025-01-08 23:57:41,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1241 of 1241 statements. [2025-01-08 23:57:41,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:41,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4956 backedges. 3721 proven. 72 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2025-01-08 23:57:42,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:42,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017496384] [2025-01-08 23:57:42,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017496384] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:42,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208751434] [2025-01-08 23:57:42,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:42,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:42,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:42,646 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 23:57:42,647 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 23:57:42,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1241 statements into 1 equivalence classes. [2025-01-08 23:57:42,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1241 of 1241 statements. [2025-01-08 23:57:42,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:42,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:42,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 23:57:42,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4956 backedges. 3680 proven. 666 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2025-01-08 23:57:43,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 23:57:43,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4956 backedges. 3793 proven. 0 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2025-01-08 23:57:43,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208751434] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:43,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-08 23:57:43,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2025-01-08 23:57:43,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464058090] [2025-01-08 23:57:43,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:43,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-08 23:57:43,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:43,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-08 23:57:43,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-08 23:57:43,964 INFO L87 Difference]: Start difference. First operand 5166 states and 5376 transitions. Second operand has 5 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 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 23:57:44,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:44,345 INFO L93 Difference]: Finished difference Result 10152 states and 10571 transitions. [2025-01-08 23:57:44,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:44,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 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 1241 [2025-01-08 23:57:44,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:44,349 INFO L225 Difference]: With dead ends: 10152 [2025-01-08 23:57:44,349 INFO L226 Difference]: Without dead ends: 5166 [2025-01-08 23:57:44,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2485 GetRequests, 2478 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-01-08 23:57:44,352 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 92 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:44,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 9 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-08 23:57:44,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2025-01-08 23:57:44,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4810. [2025-01-08 23:57:44,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0403410272405906) internal successors, (5003), 4809 states have internal predecessors, (5003), 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 23:57:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5003 transitions. [2025-01-08 23:57:44,376 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5003 transitions. Word has length 1241 [2025-01-08 23:57:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:44,376 INFO L471 AbstractCegarLoop]: Abstraction has 4810 states and 5003 transitions. [2025-01-08 23:57:44,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 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 23:57:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5003 transitions. [2025-01-08 23:57:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1412 [2025-01-08 23:57:44,386 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:44,387 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, 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, 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, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:44,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-08 23:57:44,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-01-08 23:57:44,587 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:44,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash -901661622, now seen corresponding path program 1 times [2025-01-08 23:57:44,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:44,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822498915] [2025-01-08 23:57:44,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:44,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:44,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1411 statements into 1 equivalence classes. [2025-01-08 23:57:44,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1411 of 1411 statements. [2025-01-08 23:57:44,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:44,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6169 backedges. 3915 proven. 83 refuted. 0 times theorem prover too weak. 2171 trivial. 0 not checked. [2025-01-08 23:57:45,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:45,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822498915] [2025-01-08 23:57:45,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822498915] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:45,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612434057] [2025-01-08 23:57:45,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:45,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:45,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:45,494 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) [2025-01-08 23:57:45,495 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 [2025-01-08 23:57:45,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1411 statements into 1 equivalence classes. [2025-01-08 23:57:45,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1411 of 1411 statements. [2025-01-08 23:57:45,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:45,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:45,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:57:45,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6169 backedges. 3298 proven. 0 refuted. 0 times theorem prover too weak. 2871 trivial. 0 not checked. [2025-01-08 23:57:45,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612434057] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:45,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:45,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-01-08 23:57:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861894670] [2025-01-08 23:57:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:45,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:45,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:45,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:45,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:45,957 INFO L87 Difference]: Start difference. First operand 4810 states and 5003 transitions. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 23:57:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:46,313 INFO L93 Difference]: Finished difference Result 9618 states and 10014 transitions. [2025-01-08 23:57:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 1411 [2025-01-08 23:57:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:46,320 INFO L225 Difference]: With dead ends: 9618 [2025-01-08 23:57:46,320 INFO L226 Difference]: Without dead ends: 4988 [2025-01-08 23:57:46,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1415 GetRequests, 1410 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-08 23:57:46,324 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:46,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 54 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 23:57:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2025-01-08 23:57:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2025-01-08 23:57:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0395027070382996) internal successors, (5184), 4987 states have internal predecessors, (5184), 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 23:57:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5184 transitions. [2025-01-08 23:57:46,372 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5184 transitions. Word has length 1411 [2025-01-08 23:57:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:46,373 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5184 transitions. [2025-01-08 23:57:46,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 23:57:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5184 transitions. [2025-01-08 23:57:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1476 [2025-01-08 23:57:46,388 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:46,389 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, 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, 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, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:46,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-08 23:57:46,589 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 [2025-01-08 23:57:46,590 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:46,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1034132566, now seen corresponding path program 1 times [2025-01-08 23:57:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808141835] [2025-01-08 23:57:46,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:46,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:46,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1475 statements into 1 equivalence classes. [2025-01-08 23:57:46,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1475 of 1475 statements. [2025-01-08 23:57:46,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:46,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6372 backedges. 3498 proven. 877 refuted. 0 times theorem prover too weak. 1997 trivial. 0 not checked. [2025-01-08 23:57:48,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:48,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808141835] [2025-01-08 23:57:48,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808141835] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:48,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505830632] [2025-01-08 23:57:48,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:48,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:48,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:48,327 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) [2025-01-08 23:57:48,330 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 [2025-01-08 23:57:48,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1475 statements into 1 equivalence classes. [2025-01-08 23:57:48,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1475 of 1475 statements. [2025-01-08 23:57:48,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:48,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:48,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:57:48,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6372 backedges. 2562 proven. 0 refuted. 0 times theorem prover too weak. 3810 trivial. 0 not checked. [2025-01-08 23:57:49,981 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:49,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505830632] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:49,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:49,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2025-01-08 23:57:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307957155] [2025-01-08 23:57:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:49,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:49,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:49,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:49,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-01-08 23:57:49,983 INFO L87 Difference]: Start difference. First operand 4988 states and 5184 transitions. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 3 states have internal predecessors, (441), 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 23:57:50,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:50,567 INFO L93 Difference]: Finished difference Result 9796 states and 10187 transitions. [2025-01-08 23:57:50,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:50,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 3 states have internal predecessors, (441), 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 1475 [2025-01-08 23:57:50,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:50,572 INFO L225 Difference]: With dead ends: 9796 [2025-01-08 23:57:50,572 INFO L226 Difference]: Without dead ends: 4988 [2025-01-08 23:57:50,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1482 GetRequests, 1473 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-01-08 23:57:50,576 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 96 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:50,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 17 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:57:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2025-01-08 23:57:50,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2025-01-08 23:57:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0365980453316699) internal successors, (4985), 4809 states have internal predecessors, (4985), 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 23:57:50,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4985 transitions. [2025-01-08 23:57:50,620 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4985 transitions. Word has length 1475 [2025-01-08 23:57:50,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:50,621 INFO L471 AbstractCegarLoop]: Abstraction has 4810 states and 4985 transitions. [2025-01-08 23:57:50,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 3 states have internal predecessors, (441), 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 23:57:50,621 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4985 transitions. [2025-01-08 23:57:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2025-01-08 23:57:50,634 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:50,634 INFO L218 NwaCegarLoop]: trace histogram [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, 13, 13, 13, 13, 13, 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, 11, 11, 11, 11, 11, 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, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:50,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-08 23:57:50,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:50,835 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:50,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:50,835 INFO L85 PathProgramCache]: Analyzing trace with hash -874080131, now seen corresponding path program 1 times [2025-01-08 23:57:50,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:50,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906838690] [2025-01-08 23:57:50,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:50,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:50,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1528 statements into 1 equivalence classes. [2025-01-08 23:57:50,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1528 of 1528 statements. [2025-01-08 23:57:50,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:50,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7365 backedges. 5789 proven. 304 refuted. 0 times theorem prover too weak. 1272 trivial. 0 not checked. [2025-01-08 23:57:52,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:52,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906838690] [2025-01-08 23:57:52,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906838690] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:52,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953883732] [2025-01-08 23:57:52,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:52,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:52,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:52,376 INFO L229 MonitoredProcess]: Starting monitored process 14 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 23:57:52,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-08 23:57:52,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1528 statements into 1 equivalence classes. [2025-01-08 23:57:52,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1528 of 1528 statements. [2025-01-08 23:57:52,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:52,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:52,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-08 23:57:52,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7365 backedges. 5174 proven. 0 refuted. 0 times theorem prover too weak. 2191 trivial. 0 not checked. [2025-01-08 23:57:53,037 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:53,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953883732] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:53,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:53,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-08 23:57:53,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978259928] [2025-01-08 23:57:53,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:53,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:53,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:53,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:53,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-01-08 23:57:53,039 INFO L87 Difference]: Start difference. First operand 4810 states and 4985 transitions. Second operand has 4 states, 4 states have (on average 165.75) internal successors, (663), 4 states have internal predecessors, (663), 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 23:57:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:53,565 INFO L93 Difference]: Finished difference Result 10686 states and 11065 transitions. [2025-01-08 23:57:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:53,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 165.75) internal successors, (663), 4 states have internal predecessors, (663), 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 1528 [2025-01-08 23:57:53,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:53,570 INFO L225 Difference]: With dead ends: 10686 [2025-01-08 23:57:53,570 INFO L226 Difference]: Without dead ends: 6056 [2025-01-08 23:57:53,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1533 GetRequests, 1527 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-01-08 23:57:53,573 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:53,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 38 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2025-01-08 23:57:53,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5344. [2025-01-08 23:57:53,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0359348680516565) internal successors, (5535), 5343 states have internal predecessors, (5535), 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 23:57:53,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5535 transitions. [2025-01-08 23:57:53,625 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5535 transitions. Word has length 1528 [2025-01-08 23:57:53,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:53,626 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5535 transitions. [2025-01-08 23:57:53,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 165.75) internal successors, (663), 4 states have internal predecessors, (663), 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 23:57:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5535 transitions. [2025-01-08 23:57:53,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1660 [2025-01-08 23:57:53,638 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:53,638 INFO L218 NwaCegarLoop]: trace histogram [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, 13, 13, 13, 13, 13, 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, 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, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 23:57:53,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-08 23:57:53,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:53,839 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:53,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:53,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1959977073, now seen corresponding path program 1 times [2025-01-08 23:57:53,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:53,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131128008] [2025-01-08 23:57:53,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:53,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:53,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1659 statements into 1 equivalence classes. [2025-01-08 23:57:53,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1659 of 1659 statements. [2025-01-08 23:57:53,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:53,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 8380 backedges. 5242 proven. 325 refuted. 0 times theorem prover too weak. 2813 trivial. 0 not checked. [2025-01-08 23:57:55,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:55,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131128008] [2025-01-08 23:57:55,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131128008] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:55,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930029342] [2025-01-08 23:57:55,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:55,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:55,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:55,584 INFO L229 MonitoredProcess]: Starting monitored process 15 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 23:57:55,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-08 23:57:55,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1659 statements into 1 equivalence classes. [2025-01-08 23:57:55,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1659 of 1659 statements. [2025-01-08 23:57:55,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:55,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:55,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 1968 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-08 23:57:55,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 8380 backedges. 5148 proven. 0 refuted. 0 times theorem prover too weak. 3232 trivial. 0 not checked. [2025-01-08 23:57:56,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:56,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930029342] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:56,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:56,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-01-08 23:57:56,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841534144] [2025-01-08 23:57:56,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:56,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:57:56,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:56,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:57:56,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-01-08 23:57:56,676 INFO L87 Difference]: Start difference. First operand 5344 states and 5535 transitions. Second operand has 4 states, 4 states have (on average 122.25) internal successors, (489), 3 states have internal predecessors, (489), 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 23:57:57,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:57,178 INFO L93 Difference]: Finished difference Result 10508 states and 10889 transitions. [2025-01-08 23:57:57,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:57:57,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 3 states have internal predecessors, (489), 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 1659 [2025-01-08 23:57:57,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:57,182 INFO L225 Difference]: With dead ends: 10508 [2025-01-08 23:57:57,182 INFO L226 Difference]: Without dead ends: 5344 [2025-01-08 23:57:57,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1663 GetRequests, 1657 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-01-08 23:57:57,185 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 67 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:57,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 47 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:57:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2025-01-08 23:57:57,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2025-01-08 23:57:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0355605465094517) internal successors, (5533), 5343 states have internal predecessors, (5533), 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 23:57:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5533 transitions. [2025-01-08 23:57:57,225 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5533 transitions. Word has length 1659 [2025-01-08 23:57:57,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:57,225 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5533 transitions. [2025-01-08 23:57:57,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 3 states have internal predecessors, (489), 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 23:57:57,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5533 transitions. [2025-01-08 23:57:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1689 [2025-01-08 23:57:57,238 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:57,239 INFO L218 NwaCegarLoop]: trace histogram [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, 13, 13, 13, 13, 13, 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, 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, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 23:57:57,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-08 23:57:57,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-01-08 23:57:57,439 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:57,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:57,440 INFO L85 PathProgramCache]: Analyzing trace with hash 682402227, now seen corresponding path program 1 times [2025-01-08 23:57:57,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:57,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114965363] [2025-01-08 23:57:57,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:57,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:57,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1688 statements into 1 equivalence classes. [2025-01-08 23:57:57,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1688 of 1688 statements. [2025-01-08 23:57:57,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:57,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8493 backedges. 5232 proven. 95 refuted. 0 times theorem prover too weak. 3166 trivial. 0 not checked. [2025-01-08 23:57:58,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:57:58,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114965363] [2025-01-08 23:57:58,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114965363] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 23:57:58,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220620235] [2025-01-08 23:57:58,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:58,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 23:57:58,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:57:58,460 INFO L229 MonitoredProcess]: Starting monitored process 16 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 23:57:58,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-08 23:57:58,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1688 statements into 1 equivalence classes. [2025-01-08 23:57:58,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1688 of 1688 statements. [2025-01-08 23:57:58,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:58,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:57:58,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-08 23:57:58,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 23:57:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 8493 backedges. 5327 proven. 0 refuted. 0 times theorem prover too weak. 3166 trivial. 0 not checked. [2025-01-08 23:57:58,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 23:57:58,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220620235] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:57:58,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 23:57:58,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-01-08 23:57:58,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715431972] [2025-01-08 23:57:58,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:57:58,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:57:58,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:57:58,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:57:58,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-08 23:57:58,991 INFO L87 Difference]: Start difference. First operand 5344 states and 5533 transitions. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 23:57:59,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:57:59,331 INFO L93 Difference]: Finished difference Result 10686 states and 11064 transitions. [2025-01-08 23:57:59,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:57:59,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 1688 [2025-01-08 23:57:59,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:57:59,338 INFO L225 Difference]: With dead ends: 10686 [2025-01-08 23:57:59,338 INFO L226 Difference]: Without dead ends: 5522 [2025-01-08 23:57:59,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1691 GetRequests, 1687 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 23:57:59,342 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 23:57:59,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 219 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 23:57:59,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2025-01-08 23:57:59,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5166. [2025-01-08 23:57:59,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.02729912875121) internal successors, (5306), 5165 states have internal predecessors, (5306), 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 23:57:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5306 transitions. [2025-01-08 23:57:59,394 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5306 transitions. Word has length 1688 [2025-01-08 23:57:59,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:57:59,395 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5306 transitions. [2025-01-08 23:57:59,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 23:57:59,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5306 transitions. [2025-01-08 23:57:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1779 [2025-01-08 23:57:59,412 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:57:59,412 INFO L218 NwaCegarLoop]: trace histogram [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, 15, 15, 15, 15, 15, 15, 15, 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, 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, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:57:59,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-08 23:57:59,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-08 23:57:59,613 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:57:59,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:57:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1736183196, now seen corresponding path program 1 times [2025-01-08 23:57:59,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:57:59,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820443111] [2025-01-08 23:57:59,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:57:59,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:57:59,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1778 statements into 1 equivalence classes. [2025-01-08 23:57:59,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1778 of 1778 statements. [2025-01-08 23:57:59,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:57:59,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:58:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 10200 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 9515 trivial. 0 not checked. [2025-01-08 23:58:01,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:58:01,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820443111] [2025-01-08 23:58:01,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820443111] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:58:01,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:58:01,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:58:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597482232] [2025-01-08 23:58:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:58:01,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:58:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:58:01,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:58:01,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:58:01,003 INFO L87 Difference]: Start difference. First operand 5166 states and 5306 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 23:58:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:58:01,363 INFO L93 Difference]: Finished difference Result 10684 states and 10971 transitions. [2025-01-08 23:58:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:58:01,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 1778 [2025-01-08 23:58:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:58:01,365 INFO L225 Difference]: With dead ends: 10684 [2025-01-08 23:58:01,365 INFO L226 Difference]: Without dead ends: 0 [2025-01-08 23:58:01,370 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 23:58:01,370 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 23:58:01,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 197 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 23:58:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-08 23:58:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-08 23:58:01,371 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) [2025-01-08 23:58:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-08 23:58:01,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1778 [2025-01-08 23:58:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:58:01,372 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-08 23:58:01,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 23:58:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-08 23:58:01,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-08 23:58:01,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-08 23:58:01,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-01-08 23:58:01,379 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, 1, 1, 1] [2025-01-08 23:58:01,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-08 23:58:02,105 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-08 23:58:02,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.01 11:58:02 BoogieIcfgContainer [2025-01-08 23:58:02,122 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-08 23:58:02,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-08 23:58:02,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-08 23:58:02,123 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-08 23:58:02,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:57:06" (3/4) ... [2025-01-08 23:58:02,126 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-08 23:58:02,142 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-01-08 23:58:02,143 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-08 23:58:02,144 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-08 23:58:02,144 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-08 23:58:02,276 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-08 23:58:02,276 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-08 23:58:02,277 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-08 23:58:02,278 INFO L158 Benchmark]: Toolchain (without parser) took 58334.05ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 111.6MB in the beginning and 269.3MB in the end (delta: -157.6MB). Peak memory consumption was 120.4MB. Max. memory is 16.1GB. [2025-01-08 23:58:02,278 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-08 23:58:02,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.88ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 79.2MB in the end (delta: 32.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-08 23:58:02,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.60ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 69.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-08 23:58:02,279 INFO L158 Benchmark]: Boogie Preprocessor took 129.06ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 57.9MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-08 23:58:02,279 INFO L158 Benchmark]: RCFGBuilder took 1368.18ms. Allocated memory is still 142.6MB. Free memory was 57.9MB in the beginning and 69.7MB in the end (delta: -11.8MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2025-01-08 23:58:02,279 INFO L158 Benchmark]: TraceAbstraction took 56113.20ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 69.7MB in the beginning and 281.9MB in the end (delta: -212.1MB). Peak memory consumption was 228.7MB. Max. memory is 16.1GB. [2025-01-08 23:58:02,280 INFO L158 Benchmark]: Witness Printer took 153.73ms. Allocated memory is still 419.4MB. Free memory was 281.9MB in the beginning and 269.3MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-08 23:58:02,282 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.88ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 79.2MB in the end (delta: 32.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.60ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 69.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.06ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 57.9MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1368.18ms. Allocated memory is still 142.6MB. Free memory was 57.9MB in the beginning and 69.7MB in the end (delta: -11.8MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * TraceAbstraction took 56113.20ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 69.7MB in the beginning and 281.9MB in the end (delta: -212.1MB). Peak memory consumption was 228.7MB. Max. memory is 16.1GB. * Witness Printer took 153.73ms. Allocated memory is still 419.4MB. Free memory was 281.9MB in the beginning and 269.3MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 167]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.3s, OverallIterations: 29, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2947 SdHoareTripleChecker+Valid, 14.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2947 mSDsluCounter, 2636 SdHoareTripleChecker+Invalid, 12.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 1726 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16435 IncrementalHoareTripleChecker+Invalid, 18161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1726 mSolverCounterUnsat, 2458 mSDtfsCounter, 16435 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18106 GetRequests, 18002 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=18, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 29 MinimizatonAttempts, 6054 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 27.7s InterpolantComputationTime, 39026 NumberOfCodeBlocks, 39026 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 42047 ConstructedInterpolants, 0 QuantifiedInterpolants, 111928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 18148 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 47 InterpolantComputations, 28 PerfectInterpolantSequences, 147086/151391 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((((a12 <= 11) && (a24 == 1)) && (0 <= ((long long) a12 + 12))) && (10 <= a21)) || ((((a12 <= 11) && (a24 == 1)) && (a15 <= 8)) && (a21 <= 6))) || ((((a12 <= 11) && (a24 == 1)) && (7 == a21)) && (a15 <= 8))) || ((((a24 == 1) && (5 == a15)) && (a21 == 6)) && (a12 <= 600129))) || (((a21 == 8) && (a24 == 1)) && (a12 <= 600060))) || ((((a24 == 1) && (12 <= a12)) && (10 <= a21)) && (a12 <= 600060))) || (((((long long) a12 + 43) <= 0) && (a15 <= 8)) && (a21 <= 6))) || ((((a12 <= 11) && (6 <= a15)) && (a24 == 1)) && (10 <= a21))) || ((((a24 == 1) && (a15 <= 8)) && (a21 == 9)) && (a12 <= 600060))) || (((a24 == 1) && (12 <= a12)) && (a12 <= 76))) || ((((a24 == 1) && (12 <= a12)) && (a21 <= 6)) && (a12 <= 600060))) || ((((6 <= a15) && (a24 == 1)) && (12 <= a12)) && (a12 <= 600060))) RESULT: Ultimate proved your program to be correct! [2025-01-08 23:58:02,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE