./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-81.i -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 6e69db6b79c938e6e812d41f7858906e1e9aba1ae7dcdc76b88489ffb95cb274 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 22:01:29,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 22:01:29,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 22:01:29,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 22:01:29,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 22:01:29,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 22:01:29,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 22:01:29,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 22:01:29,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 22:01:29,870 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 22:01:29,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 22:01:29,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 22:01:29,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 22:01:29,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 22:01:29,871 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 22:01:29,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 22:01:29,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 22:01:29,871 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 22:01:29,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 22:01:29,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 22:01:29,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 22:01:29,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 22:01:29,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 22:01:29,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 22:01:29,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 22:01:29,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 22:01:29,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 22:01:29,873 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 22:01:29,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 22:01:29,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 22:01:29,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 22:01:29,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 22:01:29,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 22:01:29,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 22:01:29,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 22:01:29,874 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 -> 6e69db6b79c938e6e812d41f7858906e1e9aba1ae7dcdc76b88489ffb95cb274 [2025-02-05 22:01:30,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 22:01:30,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 22:01:30,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 22:01:30,230 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 22:01:30,230 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 22:01:30,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-81.i [2025-02-05 22:01:31,516 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3eb08ff51/7271d6d83c854213a21ceefafcdb90b0/FLAGeee81e0fa [2025-02-05 22:01:31,905 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 22:01:31,910 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-81.i [2025-02-05 22:01:31,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3eb08ff51/7271d6d83c854213a21ceefafcdb90b0/FLAGeee81e0fa [2025-02-05 22:01:31,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3eb08ff51/7271d6d83c854213a21ceefafcdb90b0 [2025-02-05 22:01:31,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 22:01:31,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 22:01:31,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 22:01:31,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 22:01:31,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 22:01:31,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:01:31" (1/1) ... [2025-02-05 22:01:31,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cac7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:31, skipping insertion in model container [2025-02-05 22:01:31,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:01:31" (1/1) ... [2025-02-05 22:01:32,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 22:01:32,155 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-81.i[916,929] [2025-02-05 22:01:32,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 22:01:32,333 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 22:01:32,341 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-81.i[916,929] [2025-02-05 22:01:32,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 22:01:32,462 INFO L204 MainTranslator]: Completed translation [2025-02-05 22:01:32,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32 WrapperNode [2025-02-05 22:01:32,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 22:01:32,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 22:01:32,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 22:01:32,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 22:01:32,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,608 INFO L138 Inliner]: procedures = 26, calls = 122, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 820 [2025-02-05 22:01:32,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 22:01:32,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 22:01:32,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 22:01:32,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 22:01:32,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,695 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]. [2025-02-05 22:01:32,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,733 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 22:01:32,786 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 22:01:32,786 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 22:01:32,787 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 22:01:32,788 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (1/1) ... [2025-02-05 22:01:32,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 22:01:32,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 22:01:32,821 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) [2025-02-05 22:01:32,824 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 [2025-02-05 22:01:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 22:01:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 22:01:32,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 22:01:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 22:01:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 22:01:32,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 22:01:33,014 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 22:01:33,015 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 22:01:34,242 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L711: havoc property_#t~bitwise80#1;havoc property_#t~short81#1; [2025-02-05 22:01:34,444 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-02-05 22:01:34,444 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 22:01:34,483 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 22:01:34,487 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-05 22:01:34,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:01:34 BoogieIcfgContainer [2025-02-05 22:01:34,488 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 22:01:34,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 22:01:34,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 22:01:34,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 22:01:34,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:01:31" (1/3) ... [2025-02-05 22:01:34,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4716b9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:01:34, skipping insertion in model container [2025-02-05 22:01:34,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:32" (2/3) ... [2025-02-05 22:01:34,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4716b9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:01:34, skipping insertion in model container [2025-02-05 22:01:34,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:01:34" (3/3) ... [2025-02-05 22:01:34,497 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-81.i [2025-02-05 22:01:34,510 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 22:01:34,515 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-81.i that has 2 procedures, 340 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 22:01:34,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 22:01:34,600 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;@3e33f7a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 22:01:34,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 22:01:34,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 228 states have (on average 1.5745614035087718) internal successors, (359), 229 states have internal predecessors, (359), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2025-02-05 22:01:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2025-02-05 22:01:34,646 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:34,647 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:34,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:34,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:34,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1635253365, now seen corresponding path program 1 times [2025-02-05 22:01:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935099769] [2025-02-05 22:01:34,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:34,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:34,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 690 statements into 1 equivalence classes. [2025-02-05 22:01:34,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 690 of 690 statements. [2025-02-05 22:01:34,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:34,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2025-02-05 22:01:35,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:35,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935099769] [2025-02-05 22:01:35,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935099769] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 22:01:35,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652875908] [2025-02-05 22:01:35,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:35,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 22:01:35,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 22:01:35,440 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) [2025-02-05 22:01:35,442 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 [2025-02-05 22:01:35,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 690 statements into 1 equivalence classes. [2025-02-05 22:01:35,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 690 of 690 statements. [2025-02-05 22:01:35,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:35,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:35,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 22:01:35,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 22:01:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2025-02-05 22:01:36,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 22:01:36,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652875908] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:36,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 22:01:36,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 22:01:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77050650] [2025-02-05 22:01:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:36,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 22:01:36,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:36,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 22:01:36,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 22:01:36,085 INFO L87 Difference]: Start difference. First operand has 340 states, 228 states have (on average 1.5745614035087718) internal successors, (359), 229 states have internal predecessors, (359), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:01:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:36,179 INFO L93 Difference]: Finished difference Result 674 states and 1258 transitions. [2025-02-05 22:01:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 22:01:36,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) Word has length 690 [2025-02-05 22:01:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:36,194 INFO L225 Difference]: With dead ends: 674 [2025-02-05 22:01:36,195 INFO L226 Difference]: Without dead ends: 337 [2025-02-05 22:01:36,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 22:01:36,204 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:36,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 22:01:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-02-05 22:01:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2025-02-05 22:01:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 226 states have internal predecessors, (352), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2025-02-05 22:01:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 570 transitions. [2025-02-05 22:01:36,310 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 570 transitions. Word has length 690 [2025-02-05 22:01:36,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:36,313 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 570 transitions. [2025-02-05 22:01:36,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:01:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 570 transitions. [2025-02-05 22:01:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:01:36,332 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:36,333 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:36,345 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 [2025-02-05 22:01:36,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 22:01:36,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:36,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:36,536 INFO L85 PathProgramCache]: Analyzing trace with hash 426582716, now seen corresponding path program 1 times [2025-02-05 22:01:36,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:36,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306957576] [2025-02-05 22:01:36,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:36,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:36,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:01:36,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:01:36,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:36,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:37,417 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:01:37,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:37,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306957576] [2025-02-05 22:01:37,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306957576] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:37,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:37,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 22:01:37,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389760505] [2025-02-05 22:01:37,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:37,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 22:01:37,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:37,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 22:01:37,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:37,426 INFO L87 Difference]: Start difference. First operand 337 states and 570 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:37,557 INFO L93 Difference]: Finished difference Result 870 states and 1483 transitions. [2025-02-05 22:01:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 691 [2025-02-05 22:01:37,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:37,570 INFO L225 Difference]: With dead ends: 870 [2025-02-05 22:01:37,570 INFO L226 Difference]: Without dead ends: 536 [2025-02-05 22:01:37,572 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 [2025-02-05 22:01:37,574 INFO L435 NwaCegarLoop]: 548 mSDtfsCounter, 339 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:37,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1084 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 22:01:37,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2025-02-05 22:01:37,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 533. [2025-02-05 22:01:37,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 395 states have (on average 1.6177215189873417) internal successors, (639), 396 states have internal predecessors, (639), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 134 states have call predecessors, (135), 135 states have call successors, (135) [2025-02-05 22:01:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 909 transitions. [2025-02-05 22:01:37,706 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 909 transitions. Word has length 691 [2025-02-05 22:01:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:37,709 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 909 transitions. [2025-02-05 22:01:37,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 909 transitions. [2025-02-05 22:01:37,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:01:37,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:37,726 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:37,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 22:01:37,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:37,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:37,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1572603204, now seen corresponding path program 1 times [2025-02-05 22:01:37,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:37,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392874007] [2025-02-05 22:01:37,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:37,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:37,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:01:37,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:01:37,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:37,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:01:38,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:38,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392874007] [2025-02-05 22:01:38,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392874007] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:38,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:38,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 22:01:38,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808611971] [2025-02-05 22:01:38,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:38,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 22:01:38,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:38,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 22:01:38,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:38,984 INFO L87 Difference]: Start difference. First operand 533 states and 909 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:39,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:39,141 INFO L93 Difference]: Finished difference Result 1589 states and 2713 transitions. [2025-02-05 22:01:39,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:39,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 691 [2025-02-05 22:01:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:39,153 INFO L225 Difference]: With dead ends: 1589 [2025-02-05 22:01:39,153 INFO L226 Difference]: Without dead ends: 1059 [2025-02-05 22:01:39,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:39,156 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 368 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:39,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1099 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 22:01:39,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2025-02-05 22:01:39,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1057. [2025-02-05 22:01:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 782 states have (on average 1.6138107416879794) internal successors, (1262), 784 states have internal predecessors, (1262), 270 states have call successors, (270), 4 states have call predecessors, (270), 4 states have return successors, (270), 268 states have call predecessors, (270), 270 states have call successors, (270) [2025-02-05 22:01:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1802 transitions. [2025-02-05 22:01:39,376 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1802 transitions. Word has length 691 [2025-02-05 22:01:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:39,378 INFO L471 AbstractCegarLoop]: Abstraction has 1057 states and 1802 transitions. [2025-02-05 22:01:39,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1802 transitions. [2025-02-05 22:01:39,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:01:39,390 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:39,391 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:39,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 22:01:39,391 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:39,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:39,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1137544025, now seen corresponding path program 1 times [2025-02-05 22:01:39,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:39,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076734822] [2025-02-05 22:01:39,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:39,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:39,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:01:39,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:01:39,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:39,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:01:40,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:40,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076734822] [2025-02-05 22:01:40,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076734822] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:40,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:40,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 22:01:40,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301374696] [2025-02-05 22:01:40,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:40,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 22:01:40,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:40,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 22:01:40,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:40,075 INFO L87 Difference]: Start difference. First operand 1057 states and 1802 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:40,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:40,249 INFO L93 Difference]: Finished difference Result 3165 states and 5400 transitions. [2025-02-05 22:01:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:40,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 691 [2025-02-05 22:01:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:40,266 INFO L225 Difference]: With dead ends: 3165 [2025-02-05 22:01:40,266 INFO L226 Difference]: Without dead ends: 2111 [2025-02-05 22:01:40,271 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 [2025-02-05 22:01:40,273 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 358 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:40,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1105 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 22:01:40,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2025-02-05 22:01:40,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2109. [2025-02-05 22:01:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 1560 states have (on average 1.6102564102564103) internal successors, (2512), 1564 states have internal predecessors, (2512), 540 states have call successors, (540), 8 states have call predecessors, (540), 8 states have return successors, (540), 536 states have call predecessors, (540), 540 states have call successors, (540) [2025-02-05 22:01:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3592 transitions. [2025-02-05 22:01:40,513 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3592 transitions. Word has length 691 [2025-02-05 22:01:40,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:40,514 INFO L471 AbstractCegarLoop]: Abstraction has 2109 states and 3592 transitions. [2025-02-05 22:01:40,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3592 transitions. [2025-02-05 22:01:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:01:40,522 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:40,523 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:40,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 22:01:40,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:40,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash -833395432, now seen corresponding path program 1 times [2025-02-05 22:01:40,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:40,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577070651] [2025-02-05 22:01:40,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:40,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:01:40,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:01:40,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:40,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:01:41,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:41,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577070651] [2025-02-05 22:01:41,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577070651] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:41,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:41,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 22:01:41,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512353043] [2025-02-05 22:01:41,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:41,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 22:01:41,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:41,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 22:01:41,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:41,663 INFO L87 Difference]: Start difference. First operand 2109 states and 3592 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:41,937 INFO L93 Difference]: Finished difference Result 6321 states and 10770 transitions. [2025-02-05 22:01:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:41,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 691 [2025-02-05 22:01:41,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:41,973 INFO L225 Difference]: With dead ends: 6321 [2025-02-05 22:01:41,973 INFO L226 Difference]: Without dead ends: 4215 [2025-02-05 22:01:41,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:41,983 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 333 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:41,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1104 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 22:01:41,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4215 states. [2025-02-05 22:01:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4215 to 4173. [2025-02-05 22:01:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4173 states, 3076 states have (on average 1.6059817945383614) internal successors, (4940), 3084 states have internal predecessors, (4940), 1080 states have call successors, (1080), 16 states have call predecessors, (1080), 16 states have return successors, (1080), 1072 states have call predecessors, (1080), 1080 states have call successors, (1080) [2025-02-05 22:01:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4173 states to 4173 states and 7100 transitions. [2025-02-05 22:01:42,510 INFO L78 Accepts]: Start accepts. Automaton has 4173 states and 7100 transitions. Word has length 691 [2025-02-05 22:01:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:42,512 INFO L471 AbstractCegarLoop]: Abstraction has 4173 states and 7100 transitions. [2025-02-05 22:01:42,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:01:42,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4173 states and 7100 transitions. [2025-02-05 22:01:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:01:42,521 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:42,521 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:42,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 22:01:42,523 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:42,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash -622044519, now seen corresponding path program 1 times [2025-02-05 22:01:42,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:42,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63766710] [2025-02-05 22:01:42,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:42,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:42,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:01:43,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:01:43,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:43,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:01:56,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:56,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63766710] [2025-02-05 22:01:56,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63766710] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:56,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:56,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 22:01:56,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430843494] [2025-02-05 22:01:56,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:56,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 22:01:56,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:56,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 22:01:56,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2025-02-05 22:01:56,181 INFO L87 Difference]: Start difference. First operand 4173 states and 7100 transitions. Second operand has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:02:00,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:02:00,979 INFO L93 Difference]: Finished difference Result 11619 states and 19479 transitions. [2025-02-05 22:02:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 22:02:00,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 691 [2025-02-05 22:02:00,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:02:01,029 INFO L225 Difference]: With dead ends: 11619 [2025-02-05 22:02:01,029 INFO L226 Difference]: Without dead ends: 7449 [2025-02-05 22:02:01,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2025-02-05 22:02:01,048 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 1120 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 3422 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-05 22:02:01,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 3422 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-05 22:02:01,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2025-02-05 22:02:01,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 5725. [2025-02-05 22:02:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 4517 states have (on average 1.6360416205446093) internal successors, (7390), 4525 states have internal predecessors, (7390), 1189 states have call successors, (1189), 18 states have call predecessors, (1189), 18 states have return successors, (1189), 1181 states have call predecessors, (1189), 1189 states have call successors, (1189) [2025-02-05 22:02:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 9768 transitions. [2025-02-05 22:02:01,758 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 9768 transitions. Word has length 691 [2025-02-05 22:02:01,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:02:01,759 INFO L471 AbstractCegarLoop]: Abstraction has 5725 states and 9768 transitions. [2025-02-05 22:02:01,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:02:01,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 9768 transitions. [2025-02-05 22:02:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:02:01,768 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:02:01,768 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:02:01,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 22:02:01,768 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:02:01,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:02:01,769 INFO L85 PathProgramCache]: Analyzing trace with hash -818558024, now seen corresponding path program 1 times [2025-02-05 22:02:01,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:02:01,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139832003] [2025-02-05 22:02:01,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:02:01,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:02:01,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:02:01,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:02:01,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:02:01,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:02:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:02:02,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:02:02,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139832003] [2025-02-05 22:02:02,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139832003] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:02:02,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:02:02,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 22:02:02,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490934520] [2025-02-05 22:02:02,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:02:02,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 22:02:02,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:02:02,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 22:02:02,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:02:02,457 INFO L87 Difference]: Start difference. First operand 5725 states and 9768 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:02:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:02:02,711 INFO L93 Difference]: Finished difference Result 10425 states and 17634 transitions. [2025-02-05 22:02:02,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 22:02:02,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 691 [2025-02-05 22:02:02,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:02:02,763 INFO L225 Difference]: With dead ends: 10425 [2025-02-05 22:02:02,764 INFO L226 Difference]: Without dead ends: 6255 [2025-02-05 22:02:02,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:02:02,783 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 42 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:02:02,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 1658 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 22:02:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2025-02-05 22:02:03,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6237. [2025-02-05 22:02:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6237 states, 4949 states have (on average 1.6096181046676097) internal successors, (7966), 4973 states have internal predecessors, (7966), 1253 states have call successors, (1253), 34 states have call predecessors, (1253), 34 states have return successors, (1253), 1229 states have call predecessors, (1253), 1253 states have call successors, (1253) [2025-02-05 22:02:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6237 states to 6237 states and 10472 transitions. [2025-02-05 22:02:03,402 INFO L78 Accepts]: Start accepts. Automaton has 6237 states and 10472 transitions. Word has length 691 [2025-02-05 22:02:03,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:02:03,404 INFO L471 AbstractCegarLoop]: Abstraction has 6237 states and 10472 transitions. [2025-02-05 22:02:03,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:02:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 6237 states and 10472 transitions. [2025-02-05 22:02:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:02:03,417 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:02:03,417 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:02:03,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 22:02:03,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:02:03,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:02:03,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1875971418, now seen corresponding path program 1 times [2025-02-05 22:02:03,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:02:03,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65881139] [2025-02-05 22:02:03,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:02:03,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:02:03,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:02:03,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:02:03,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:02:03,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:02:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:02:12,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:02:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65881139] [2025-02-05 22:02:12,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65881139] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:02:12,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:02:12,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 22:02:12,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972022486] [2025-02-05 22:02:12,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:02:12,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 22:02:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:02:12,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 22:02:12,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-02-05 22:02:12,040 INFO L87 Difference]: Start difference. First operand 6237 states and 10472 transitions. Second operand has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:02:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:02:13,807 INFO L93 Difference]: Finished difference Result 11499 states and 19107 transitions. [2025-02-05 22:02:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 22:02:13,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 691 [2025-02-05 22:02:13,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:02:13,845 INFO L225 Difference]: With dead ends: 11499 [2025-02-05 22:02:13,846 INFO L226 Difference]: Without dead ends: 6817 [2025-02-05 22:02:13,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2025-02-05 22:02:13,864 INFO L435 NwaCegarLoop]: 539 mSDtfsCounter, 175 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 22:02:13,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 3127 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 22:02:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6817 states. [2025-02-05 22:02:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6817 to 5025. [2025-02-05 22:02:14,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5025 states, 3737 states have (on average 1.5587369547765588) internal successors, (5825), 3762 states have internal predecessors, (5825), 1253 states have call successors, (1253), 34 states have call predecessors, (1253), 34 states have return successors, (1253), 1228 states have call predecessors, (1253), 1253 states have call successors, (1253) [2025-02-05 22:02:14,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 8331 transitions. [2025-02-05 22:02:14,512 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 8331 transitions. Word has length 691 [2025-02-05 22:02:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:02:14,513 INFO L471 AbstractCegarLoop]: Abstraction has 5025 states and 8331 transitions. [2025-02-05 22:02:14,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2025-02-05 22:02:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 8331 transitions. [2025-02-05 22:02:14,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:02:14,522 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:02:14,523 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:02:14,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 22:02:14,523 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:02:14,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:02:14,524 INFO L85 PathProgramCache]: Analyzing trace with hash -492961800, now seen corresponding path program 1 times [2025-02-05 22:02:14,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:02:14,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258185277] [2025-02-05 22:02:14,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:02:14,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:02:14,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:02:14,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:02:14,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:02:14,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:02:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:02:16,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:02:16,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258185277] [2025-02-05 22:02:16,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258185277] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:02:16,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:02:16,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 22:02:16,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392083319] [2025-02-05 22:02:16,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:02:16,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 22:02:16,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:02:16,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 22:02:16,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-05 22:02:16,486 INFO L87 Difference]: Start difference. First operand 5025 states and 8331 transitions. Second operand has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:02:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:02:18,771 INFO L93 Difference]: Finished difference Result 13341 states and 21844 transitions. [2025-02-05 22:02:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 22:02:18,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) Word has length 691 [2025-02-05 22:02:18,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:02:18,809 INFO L225 Difference]: With dead ends: 13341 [2025-02-05 22:02:18,809 INFO L226 Difference]: Without dead ends: 8499 [2025-02-05 22:02:18,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2025-02-05 22:02:18,826 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 907 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-05 22:02:18,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 3448 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-05 22:02:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8499 states. [2025-02-05 22:02:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8499 to 6301. [2025-02-05 22:02:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6301 states, 5013 states have (on average 1.6050269299820468) internal successors, (8046), 5037 states have internal predecessors, (8046), 1253 states have call successors, (1253), 34 states have call predecessors, (1253), 34 states have return successors, (1253), 1229 states have call predecessors, (1253), 1253 states have call successors, (1253) [2025-02-05 22:02:19,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 10552 transitions. [2025-02-05 22:02:19,506 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 10552 transitions. Word has length 691 [2025-02-05 22:02:19,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:02:19,507 INFO L471 AbstractCegarLoop]: Abstraction has 6301 states and 10552 transitions. [2025-02-05 22:02:19,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:02:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 10552 transitions. [2025-02-05 22:02:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2025-02-05 22:02:19,517 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:02:19,517 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:02:19,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 22:02:19,518 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:02:19,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:02:19,519 INFO L85 PathProgramCache]: Analyzing trace with hash -998520425, now seen corresponding path program 1 times [2025-02-05 22:02:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:02:19,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172815006] [2025-02-05 22:02:19,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:02:19,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:02:19,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 691 statements into 1 equivalence classes. [2025-02-05 22:02:19,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 691 of 691 statements. [2025-02-05 22:02:19,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:02:19,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:02:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:02:21,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:02:21,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172815006] [2025-02-05 22:02:21,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172815006] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:02:21,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:02:21,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 22:02:21,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609490627] [2025-02-05 22:02:21,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:02:21,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 22:02:21,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:02:21,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 22:02:21,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-05 22:02:21,288 INFO L87 Difference]: Start difference. First operand 6301 states and 10552 transitions. Second operand has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:02:22,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:02:22,782 INFO L93 Difference]: Finished difference Result 12603 states and 20723 transitions. [2025-02-05 22:02:22,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 22:02:22,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) Word has length 691 [2025-02-05 22:02:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:02:22,818 INFO L225 Difference]: With dead ends: 12603 [2025-02-05 22:02:22,819 INFO L226 Difference]: Without dead ends: 7761 [2025-02-05 22:02:22,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2025-02-05 22:02:22,836 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 1055 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:02:22,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 2266 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-05 22:02:22,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7761 states. [2025-02-05 22:02:23,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7761 to 6317. [2025-02-05 22:02:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6317 states, 5029 states have (on average 1.6062835553788029) internal successors, (8078), 5053 states have internal predecessors, (8078), 1253 states have call successors, (1253), 34 states have call predecessors, (1253), 34 states have return successors, (1253), 1229 states have call predecessors, (1253), 1253 states have call successors, (1253) [2025-02-05 22:02:23,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6317 states to 6317 states and 10584 transitions. [2025-02-05 22:02:23,478 INFO L78 Accepts]: Start accepts. Automaton has 6317 states and 10584 transitions. Word has length 691 [2025-02-05 22:02:23,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:02:23,479 INFO L471 AbstractCegarLoop]: Abstraction has 6317 states and 10584 transitions. [2025-02-05 22:02:23,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:02:23,480 INFO L276 IsEmpty]: Start isEmpty. Operand 6317 states and 10584 transitions. [2025-02-05 22:02:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2025-02-05 22:02:23,487 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:02:23,488 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:02:23,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 22:02:23,488 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:02:23,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:02:23,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1903911574, now seen corresponding path program 1 times [2025-02-05 22:02:23,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:02:23,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378818708] [2025-02-05 22:02:23,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:02:23,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:02:23,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 692 statements into 1 equivalence classes. [2025-02-05 22:02:23,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 692 of 692 statements. [2025-02-05 22:02:23,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:02:23,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:02:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2025-02-05 22:02:29,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:02:29,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378818708] [2025-02-05 22:02:29,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378818708] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:02:29,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:02:29,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-05 22:02:29,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033757809] [2025-02-05 22:02:29,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:02:29,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 22:02:29,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:02:29,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 22:02:29,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-05 22:02:29,556 INFO L87 Difference]: Start difference. First operand 6317 states and 10584 transitions. Second operand has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:02:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:02:32,414 INFO L93 Difference]: Finished difference Result 14225 states and 23014 transitions. [2025-02-05 22:02:32,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 22:02:32,415 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) Word has length 692 [2025-02-05 22:02:32,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:02:32,449 INFO L225 Difference]: With dead ends: 14225 [2025-02-05 22:02:32,449 INFO L226 Difference]: Without dead ends: 9383 [2025-02-05 22:02:32,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2025-02-05 22:02:32,466 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 1090 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-05 22:02:32,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 3970 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-05 22:02:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2025-02-05 22:02:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 6381. [2025-02-05 22:02:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6381 states, 5093 states have (on average 1.6049479677989398) internal successors, (8174), 5117 states have internal predecessors, (8174), 1253 states have call successors, (1253), 34 states have call predecessors, (1253), 34 states have return successors, (1253), 1229 states have call predecessors, (1253), 1253 states have call successors, (1253) [2025-02-05 22:02:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6381 states to 6381 states and 10680 transitions. [2025-02-05 22:02:33,082 INFO L78 Accepts]: Start accepts. Automaton has 6381 states and 10680 transitions. Word has length 692 [2025-02-05 22:02:33,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:02:33,083 INFO L471 AbstractCegarLoop]: Abstraction has 6381 states and 10680 transitions. [2025-02-05 22:02:33,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 2 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2025-02-05 22:02:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 6381 states and 10680 transitions. [2025-02-05 22:02:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2025-02-05 22:02:33,091 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:02:33,091 INFO L218 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:02:33,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 22:02:33,091 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:02:33,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:02:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1707398069, now seen corresponding path program 1 times [2025-02-05 22:02:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:02:33,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115934451] [2025-02-05 22:02:33,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:02:33,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:02:33,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 692 statements into 1 equivalence classes. [2025-02-05 22:02:33,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 692 of 692 statements. [2025-02-05 22:02:33,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:02:33,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat