./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 ce9fa65ad297a46fd1c0c7bb56056c5a0304efd02803c9735a082016b49852e1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 04:29:49,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 04:29:49,681 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 04:29:49,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 04:29:49,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 04:29:49,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 04:29:49,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 04:29:49,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 04:29:49,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 04:29:49,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 04:29:49,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 04:29:49,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 04:29:49,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 04:29:49,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 04:29:49,709 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 04:29:49,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 04:29:49,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 04:29:49,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 04:29:49,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 04:29:49,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 04:29:49,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 04:29:49,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 04:29:49,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 04:29:49,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 04:29:49,713 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 04:29:49,713 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 04:29:49,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 04:29:49,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 04:29:49,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 04:29:49,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 04:29:49,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 04:29:49,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 04:29:49,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:29:49,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 04:29:49,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 04:29:49,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 04:29:49,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 04:29:49,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 04:29:49,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 04:29:49,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 04:29:49,715 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 04:29:49,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 04:29:49,716 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce9fa65ad297a46fd1c0c7bb56056c5a0304efd02803c9735a082016b49852e1 [2024-11-20 04:29:49,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 04:29:49,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 04:29:49,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 04:29:49,971 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 04:29:49,971 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 04:29:49,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-20 04:29:51,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 04:29:51,397 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 04:29:51,398 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-20 04:29:51,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7f5d51db/edbae9e736ac4c498d11b08dbab46af8/FLAG2c30c2ae4 [2024-11-20 04:29:51,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7f5d51db/edbae9e736ac4c498d11b08dbab46af8 [2024-11-20 04:29:51,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 04:29:51,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 04:29:51,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 04:29:51,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 04:29:51,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 04:29:51,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:29:51" (1/1) ... [2024-11-20 04:29:51,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c168ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:51, skipping insertion in model container [2024-11-20 04:29:51,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:29:51" (1/1) ... [2024-11-20 04:29:51,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 04:29:51,967 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i[919,932] [2024-11-20 04:29:52,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:29:52,062 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 04:29:52,070 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i[919,932] [2024-11-20 04:29:52,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:29:52,111 INFO L204 MainTranslator]: Completed translation [2024-11-20 04:29:52,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52 WrapperNode [2024-11-20 04:29:52,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 04:29:52,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 04:29:52,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 04:29:52,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 04:29:52,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,170 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-11-20 04:29:52,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 04:29:52,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 04:29:52,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 04:29:52,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 04:29:52,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,209 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]. [2024-11-20 04:29:52,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 04:29:52,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 04:29:52,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 04:29:52,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 04:29:52,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (1/1) ... [2024-11-20 04:29:52,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:29:52,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:29:52,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 04:29:52,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 04:29:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 04:29:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 04:29:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 04:29:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 04:29:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 04:29:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 04:29:52,405 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 04:29:52,408 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 04:29:52,794 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-20 04:29:52,795 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 04:29:52,806 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 04:29:52,808 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 04:29:52,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:29:52 BoogieIcfgContainer [2024-11-20 04:29:52,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 04:29:52,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 04:29:52,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 04:29:52,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 04:29:52,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:29:51" (1/3) ... [2024-11-20 04:29:52,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334cd393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:29:52, skipping insertion in model container [2024-11-20 04:29:52,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:52" (2/3) ... [2024-11-20 04:29:52,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334cd393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:29:52, skipping insertion in model container [2024-11-20 04:29:52,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:29:52" (3/3) ... [2024-11-20 04:29:52,817 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-20 04:29:52,831 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 04:29:52,831 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 04:29:52,878 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 04:29:52,883 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;@4e4191c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 04:29:52,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 04:29:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 04:29:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 04:29:52,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:29:52,898 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:29:52,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:29:52,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:29:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash 109598789, now seen corresponding path program 1 times [2024-11-20 04:29:52,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:29:52,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667701267] [2024-11-20 04:29:52,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:29:52,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:29:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:29:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:29:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:29:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:29:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:29:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:29:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:29:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:29:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:29:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:29:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:29:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:29:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:29:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:29:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:29:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:29:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:29:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:29:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:29:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:29:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:29:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:29:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:29:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:29:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:29:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:29:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:29:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:29:53,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:29:53,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667701267] [2024-11-20 04:29:53,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667701267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:29:53,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:29:53,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 04:29:53,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059787347] [2024-11-20 04:29:53,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:29:53,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 04:29:53,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:29:53,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 04:29:53,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 04:29:53,323 INFO L87 Difference]: Start difference. First operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:29:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:29:53,355 INFO L93 Difference]: Finished difference Result 187 states and 329 transitions. [2024-11-20 04:29:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 04:29:53,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-20 04:29:53,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:29:53,363 INFO L225 Difference]: With dead ends: 187 [2024-11-20 04:29:53,364 INFO L226 Difference]: Without dead ends: 93 [2024-11-20 04:29:53,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 04:29:53,369 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:29:53,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:29:53,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-20 04:29:53,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-20 04:29:53,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.4375) internal successors, (92), 64 states have internal predecessors, (92), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 04:29:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2024-11-20 04:29:53,415 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 174 [2024-11-20 04:29:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:29:53,415 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2024-11-20 04:29:53,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:29:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2024-11-20 04:29:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 04:29:53,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:29:53,422 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:29:53,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 04:29:53,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:29:53,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:29:53,425 INFO L85 PathProgramCache]: Analyzing trace with hash 744198851, now seen corresponding path program 1 times [2024-11-20 04:29:53,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:29:53,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789668950] [2024-11-20 04:29:53,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:29:53,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:29:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:29:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:29:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:29:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:29:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:29:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:29:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:29:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:29:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:29:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:29:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:29:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:29:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:29:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:29:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:29:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:29:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:29:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:29:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:29:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:29:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:29:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:29:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:29:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:29:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:29:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:29:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:29:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:29:53,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:29:53,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789668950] [2024-11-20 04:29:53,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789668950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:29:53,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:29:53,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 04:29:53,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687378514] [2024-11-20 04:29:53,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:29:53,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 04:29:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:29:53,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 04:29:53,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:29:53,785 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:29:53,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:29:53,813 INFO L93 Difference]: Finished difference Result 184 states and 291 transitions. [2024-11-20 04:29:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 04:29:53,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 04:29:53,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:29:53,821 INFO L225 Difference]: With dead ends: 184 [2024-11-20 04:29:53,821 INFO L226 Difference]: Without dead ends: 94 [2024-11-20 04:29:53,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:29:53,823 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:29:53,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:29:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-20 04:29:53,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-20 04:29:53,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 04:29:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-11-20 04:29:53,833 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 174 [2024-11-20 04:29:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:29:53,834 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-11-20 04:29:53,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:29:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-11-20 04:29:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 04:29:53,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:29:53,837 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:29:53,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 04:29:53,837 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:29:53,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:29:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1775761083, now seen corresponding path program 1 times [2024-11-20 04:29:53,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:29:53,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433347354] [2024-11-20 04:29:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:29:53,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:29:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:29:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:29:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:29:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:29:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:29:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:29:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:29:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:29:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:29:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:29:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:29:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:29:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:29:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:29:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:29:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:29:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:29:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:29:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:29:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:29:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:29:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:29:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:29:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:29:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:29:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:29:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:29:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:29:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:29:54,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:29:54,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433347354] [2024-11-20 04:29:54,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433347354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:29:54,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:29:54,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 04:29:54,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319602164] [2024-11-20 04:29:54,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:29:54,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 04:29:54,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:29:54,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 04:29:54,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 04:29:54,170 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:29:54,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:29:54,386 INFO L93 Difference]: Finished difference Result 277 states and 436 transitions. [2024-11-20 04:29:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 04:29:54,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 04:29:54,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:29:54,390 INFO L225 Difference]: With dead ends: 277 [2024-11-20 04:29:54,390 INFO L226 Difference]: Without dead ends: 186 [2024-11-20 04:29:54,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 04:29:54,392 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 114 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 04:29:54,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 490 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 04:29:54,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-20 04:29:54,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 141. [2024-11-20 04:29:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 84 states have internal predecessors, (112), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 04:29:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 220 transitions. [2024-11-20 04:29:54,423 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 220 transitions. Word has length 174 [2024-11-20 04:29:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:29:54,423 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 220 transitions. [2024-11-20 04:29:54,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:29:54,423 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 220 transitions. [2024-11-20 04:29:54,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 04:29:54,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:29:54,428 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:29:54,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 04:29:54,428 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:29:54,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:29:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1353059257, now seen corresponding path program 1 times [2024-11-20 04:29:54,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:29:54,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362952602] [2024-11-20 04:29:54,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:29:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:29:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:01,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:01,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362952602] [2024-11-20 04:30:01,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362952602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:01,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:01,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 04:30:01,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435352051] [2024-11-20 04:30:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:01,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 04:30:01,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:01,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 04:30:01,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-20 04:30:01,927 INFO L87 Difference]: Start difference. First operand 141 states and 220 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:30:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:05,654 INFO L93 Difference]: Finished difference Result 497 states and 782 transitions. [2024-11-20 04:30:05,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 04:30:05,655 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-20 04:30:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:05,658 INFO L225 Difference]: With dead ends: 497 [2024-11-20 04:30:05,658 INFO L226 Difference]: Without dead ends: 406 [2024-11-20 04:30:05,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=269, Invalid=723, Unknown=0, NotChecked=0, Total=992 [2024-11-20 04:30:05,660 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 1342 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:05,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1112 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 04:30:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-20 04:30:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 184. [2024-11-20 04:30:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.4251968503937007) internal successors, (181), 127 states have internal predecessors, (181), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 04:30:05,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 289 transitions. [2024-11-20 04:30:05,681 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 289 transitions. Word has length 174 [2024-11-20 04:30:05,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:05,681 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 289 transitions. [2024-11-20 04:30:05,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:30:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 289 transitions. [2024-11-20 04:30:05,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 04:30:05,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:05,687 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:05,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 04:30:05,687 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:05,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:05,688 INFO L85 PathProgramCache]: Analyzing trace with hash -651994679, now seen corresponding path program 1 times [2024-11-20 04:30:05,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:05,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81151651] [2024-11-20 04:30:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:05,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:05,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:05,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81151651] [2024-11-20 04:30:05,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81151651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:05,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:05,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 04:30:05,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187543067] [2024-11-20 04:30:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:05,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 04:30:05,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:05,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 04:30:05,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 04:30:05,991 INFO L87 Difference]: Start difference. First operand 184 states and 289 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:06,059 INFO L93 Difference]: Finished difference Result 359 states and 563 transitions. [2024-11-20 04:30:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 04:30:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 04:30:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:06,061 INFO L225 Difference]: With dead ends: 359 [2024-11-20 04:30:06,061 INFO L226 Difference]: Without dead ends: 268 [2024-11-20 04:30:06,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 04:30:06,062 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 181 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:06,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 396 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:30:06,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-20 04:30:06,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 195. [2024-11-20 04:30:06,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 138 states have (on average 1.434782608695652) internal successors, (198), 138 states have internal predecessors, (198), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 04:30:06,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 306 transitions. [2024-11-20 04:30:06,076 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 306 transitions. Word has length 174 [2024-11-20 04:30:06,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:06,077 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 306 transitions. [2024-11-20 04:30:06,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 306 transitions. [2024-11-20 04:30:06,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 04:30:06,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:06,079 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:06,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 04:30:06,079 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:06,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:06,079 INFO L85 PathProgramCache]: Analyzing trace with hash 947763333, now seen corresponding path program 1 times [2024-11-20 04:30:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731910172] [2024-11-20 04:30:06,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:06,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:06,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:06,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:06,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731910172] [2024-11-20 04:30:06,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731910172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:06,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:06,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 04:30:06,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102944206] [2024-11-20 04:30:06,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:06,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 04:30:06,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 04:30:06,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:30:06,151 INFO L87 Difference]: Start difference. First operand 195 states and 306 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:06,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:06,178 INFO L93 Difference]: Finished difference Result 430 states and 678 transitions. [2024-11-20 04:30:06,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 04:30:06,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 04:30:06,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:06,181 INFO L225 Difference]: With dead ends: 430 [2024-11-20 04:30:06,181 INFO L226 Difference]: Without dead ends: 328 [2024-11-20 04:30:06,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:30:06,182 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 136 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:06,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 332 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:30:06,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-20 04:30:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 326. [2024-11-20 04:30:06,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 241 states have (on average 1.4439834024896265) internal successors, (348), 241 states have internal predecessors, (348), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-20 04:30:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 510 transitions. [2024-11-20 04:30:06,196 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 510 transitions. Word has length 174 [2024-11-20 04:30:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:06,197 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 510 transitions. [2024-11-20 04:30:06,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:06,197 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 510 transitions. [2024-11-20 04:30:06,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 04:30:06,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:06,198 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:06,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 04:30:06,199 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:06,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:06,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1391099721, now seen corresponding path program 1 times [2024-11-20 04:30:06,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:06,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788148829] [2024-11-20 04:30:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:06,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:08,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:08,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788148829] [2024-11-20 04:30:08,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788148829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:08,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:08,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 04:30:08,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720141233] [2024-11-20 04:30:08,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:08,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 04:30:08,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:08,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 04:30:08,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-20 04:30:08,997 INFO L87 Difference]: Start difference. First operand 326 states and 510 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:09,899 INFO L93 Difference]: Finished difference Result 671 states and 1044 transitions. [2024-11-20 04:30:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 04:30:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 04:30:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:09,902 INFO L225 Difference]: With dead ends: 671 [2024-11-20 04:30:09,902 INFO L226 Difference]: Without dead ends: 437 [2024-11-20 04:30:09,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-20 04:30:09,904 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 971 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:09,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1102 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 04:30:09,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-20 04:30:09,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 290. [2024-11-20 04:30:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 205 states have (on average 1.4097560975609755) internal successors, (289), 205 states have internal predecessors, (289), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-20 04:30:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 451 transitions. [2024-11-20 04:30:09,929 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 451 transitions. Word has length 175 [2024-11-20 04:30:09,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:09,930 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 451 transitions. [2024-11-20 04:30:09,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:09,930 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 451 transitions. [2024-11-20 04:30:09,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 04:30:09,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:09,932 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:09,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 04:30:09,932 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:09,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1339895313, now seen corresponding path program 1 times [2024-11-20 04:30:09,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:09,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200812511] [2024-11-20 04:30:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:10,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:10,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:10,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200812511] [2024-11-20 04:30:10,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200812511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:10,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:10,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 04:30:10,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105217691] [2024-11-20 04:30:10,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:10,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 04:30:10,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 04:30:10,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 04:30:10,195 INFO L87 Difference]: Start difference. First operand 290 states and 451 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:30:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:10,258 INFO L93 Difference]: Finished difference Result 556 states and 871 transitions. [2024-11-20 04:30:10,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 04:30:10,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-20 04:30:10,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:10,260 INFO L225 Difference]: With dead ends: 556 [2024-11-20 04:30:10,260 INFO L226 Difference]: Without dead ends: 356 [2024-11-20 04:30:10,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-20 04:30:10,261 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 197 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:10,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 386 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:30:10,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-20 04:30:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 290. [2024-11-20 04:30:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 205 states have (on average 1.3853658536585365) internal successors, (284), 205 states have internal predecessors, (284), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-20 04:30:10,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 446 transitions. [2024-11-20 04:30:10,273 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 446 transitions. Word has length 175 [2024-11-20 04:30:10,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:10,274 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 446 transitions. [2024-11-20 04:30:10,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:30:10,274 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 446 transitions. [2024-11-20 04:30:10,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 04:30:10,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:10,275 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:10,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 04:30:10,275 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:10,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1943954733, now seen corresponding path program 1 times [2024-11-20 04:30:10,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:10,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892916187] [2024-11-20 04:30:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:10,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:15,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:15,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892916187] [2024-11-20 04:30:15,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892916187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:15,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:15,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 04:30:15,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190487296] [2024-11-20 04:30:15,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:15,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 04:30:15,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:15,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 04:30:15,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-20 04:30:15,785 INFO L87 Difference]: Start difference. First operand 290 states and 446 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:30:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:20,205 INFO L93 Difference]: Finished difference Result 469 states and 713 transitions. [2024-11-20 04:30:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 04:30:20,206 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-20 04:30:20,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:20,208 INFO L225 Difference]: With dead ends: 469 [2024-11-20 04:30:20,208 INFO L226 Difference]: Without dead ends: 467 [2024-11-20 04:30:20,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=346, Invalid=986, Unknown=0, NotChecked=0, Total=1332 [2024-11-20 04:30:20,209 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 905 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:20,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1187 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 04:30:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-20 04:30:20,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 290. [2024-11-20 04:30:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 205 states have (on average 1.3853658536585365) internal successors, (284), 205 states have internal predecessors, (284), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-20 04:30:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 446 transitions. [2024-11-20 04:30:20,235 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 446 transitions. Word has length 175 [2024-11-20 04:30:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:20,237 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 446 transitions. [2024-11-20 04:30:20,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 04:30:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 446 transitions. [2024-11-20 04:30:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 04:30:20,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:20,240 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:20,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 04:30:20,241 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:20,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:20,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1888325872, now seen corresponding path program 1 times [2024-11-20 04:30:20,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:20,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351748212] [2024-11-20 04:30:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:20,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:20,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:20,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351748212] [2024-11-20 04:30:20,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351748212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:20,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:20,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 04:30:20,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337338275] [2024-11-20 04:30:20,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:20,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 04:30:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 04:30:20,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:30:20,388 INFO L87 Difference]: Start difference. First operand 290 states and 446 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:20,410 INFO L93 Difference]: Finished difference Result 580 states and 896 transitions. [2024-11-20 04:30:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 04:30:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 04:30:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:20,412 INFO L225 Difference]: With dead ends: 580 [2024-11-20 04:30:20,412 INFO L226 Difference]: Without dead ends: 383 [2024-11-20 04:30:20,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 04:30:20,414 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 85 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:20,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 332 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:30:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-20 04:30:20,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2024-11-20 04:30:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 268 states have (on average 1.3880597014925373) internal successors, (372), 268 states have internal predecessors, (372), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-20 04:30:20,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 588 transitions. [2024-11-20 04:30:20,429 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 588 transitions. Word has length 175 [2024-11-20 04:30:20,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:20,429 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 588 transitions. [2024-11-20 04:30:20,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:20,430 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 588 transitions. [2024-11-20 04:30:20,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 04:30:20,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:20,431 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:20,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 04:30:20,432 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:20,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:20,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1705576846, now seen corresponding path program 1 times [2024-11-20 04:30:20,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:20,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591371063] [2024-11-20 04:30:20,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:20,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:29,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:29,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591371063] [2024-11-20 04:30:29,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591371063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:29,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:29,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 04:30:29,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65270846] [2024-11-20 04:30:29,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:29,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 04:30:29,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 04:30:29,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-20 04:30:29,268 INFO L87 Difference]: Start difference. First operand 381 states and 588 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:38,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:38,365 INFO L93 Difference]: Finished difference Result 601 states and 913 transitions. [2024-11-20 04:30:38,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 04:30:38,366 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 04:30:38,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:38,368 INFO L225 Difference]: With dead ends: 601 [2024-11-20 04:30:38,369 INFO L226 Difference]: Without dead ends: 599 [2024-11-20 04:30:38,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 04:30:38,370 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 724 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:38,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1110 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-20 04:30:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-20 04:30:38,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 416. [2024-11-20 04:30:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 303 states have (on average 1.4059405940594059) internal successors, (426), 303 states have internal predecessors, (426), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-20 04:30:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 642 transitions. [2024-11-20 04:30:38,392 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 642 transitions. Word has length 175 [2024-11-20 04:30:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:38,393 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 642 transitions. [2024-11-20 04:30:38,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:38,393 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 642 transitions. [2024-11-20 04:30:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 04:30:38,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:38,394 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:38,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 04:30:38,394 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:38,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1568322096, now seen corresponding path program 1 times [2024-11-20 04:30:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:38,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941696376] [2024-11-20 04:30:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:38,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:46,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:46,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941696376] [2024-11-20 04:30:46,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941696376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:46,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:46,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 04:30:46,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428886061] [2024-11-20 04:30:46,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:46,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 04:30:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:46,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 04:30:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-20 04:30:46,425 INFO L87 Difference]: Start difference. First operand 416 states and 642 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:30:53,927 INFO L93 Difference]: Finished difference Result 595 states and 907 transitions. [2024-11-20 04:30:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 04:30:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 04:30:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:30:53,930 INFO L225 Difference]: With dead ends: 595 [2024-11-20 04:30:53,930 INFO L226 Difference]: Without dead ends: 593 [2024-11-20 04:30:53,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2024-11-20 04:30:53,931 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 942 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-20 04:30:53,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 1049 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-20 04:30:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-20 04:30:53,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 416. [2024-11-20 04:30:53,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 303 states have (on average 1.4059405940594059) internal successors, (426), 303 states have internal predecessors, (426), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-20 04:30:53,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 642 transitions. [2024-11-20 04:30:53,953 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 642 transitions. Word has length 175 [2024-11-20 04:30:53,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:30:53,953 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 642 transitions. [2024-11-20 04:30:53,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:30:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 642 transitions. [2024-11-20 04:30:53,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 04:30:53,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:30:53,955 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:30:53,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 04:30:53,955 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:30:53,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:30:53,956 INFO L85 PathProgramCache]: Analyzing trace with hash 519318307, now seen corresponding path program 1 times [2024-11-20 04:30:53,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:30:53,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138446607] [2024-11-20 04:30:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:30:53,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:30:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:30:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:30:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:30:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:30:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:30:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:30:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:30:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:30:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:30:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:30:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:30:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:30:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:30:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:30:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:30:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:30:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:30:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:30:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:30:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:30:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:30:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:30:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:30:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:30:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:30:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:30:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:30:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:30:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:30:58,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:30:58,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138446607] [2024-11-20 04:30:58,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138446607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:30:58,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:30:58,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 04:30:58,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868519793] [2024-11-20 04:30:58,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:30:58,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 04:30:58,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:30:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 04:30:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-20 04:30:58,729 INFO L87 Difference]: Start difference. First operand 416 states and 642 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:31:03,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:31:03,598 INFO L93 Difference]: Finished difference Result 558 states and 852 transitions. [2024-11-20 04:31:03,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 04:31:03,599 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-20 04:31:03,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:31:03,602 INFO L225 Difference]: With dead ends: 558 [2024-11-20 04:31:03,602 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 04:31:03,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2024-11-20 04:31:03,603 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 763 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-20 04:31:03,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1414 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-20 04:31:03,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 04:31:03,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 413. [2024-11-20 04:31:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 300 states have (on average 1.4066666666666667) internal successors, (422), 300 states have internal predecessors, (422), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-20 04:31:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 638 transitions. [2024-11-20 04:31:03,623 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 638 transitions. Word has length 176 [2024-11-20 04:31:03,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:31:03,624 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 638 transitions. [2024-11-20 04:31:03,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:31:03,624 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 638 transitions. [2024-11-20 04:31:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 04:31:03,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:31:03,626 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:31:03,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 04:31:03,626 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:31:03,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:31:03,627 INFO L85 PathProgramCache]: Analyzing trace with hash -245946368, now seen corresponding path program 1 times [2024-11-20 04:31:03,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:31:03,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933900883] [2024-11-20 04:31:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:31:03,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:31:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:31:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:31:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:31:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:31:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:31:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:31:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:31:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:31:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:31:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:31:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:31:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:31:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 04:31:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:31:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 04:31:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:31:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 04:31:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:31:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 04:31:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:31:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 04:31:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 04:31:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 04:31:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 04:31:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 04:31:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 04:31:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 04:31:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:31:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 04:31:09,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:31:09,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933900883] [2024-11-20 04:31:09,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933900883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:31:09,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:31:09,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 04:31:09,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419235410] [2024-11-20 04:31:09,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:31:09,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 04:31:09,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:31:09,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 04:31:09,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-20 04:31:09,727 INFO L87 Difference]: Start difference. First operand 413 states and 638 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:31:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:31:13,649 INFO L93 Difference]: Finished difference Result 596 states and 908 transitions. [2024-11-20 04:31:13,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 04:31:13,650 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-20 04:31:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:31:13,652 INFO L225 Difference]: With dead ends: 596 [2024-11-20 04:31:13,653 INFO L226 Difference]: Without dead ends: 594 [2024-11-20 04:31:13,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=314, Invalid=876, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 04:31:13,654 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 749 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:31:13,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1497 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 04:31:13,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-20 04:31:13,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 418. [2024-11-20 04:31:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 305 states have (on average 1.4065573770491804) internal successors, (429), 305 states have internal predecessors, (429), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-20 04:31:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 645 transitions. [2024-11-20 04:31:13,675 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 645 transitions. Word has length 176 [2024-11-20 04:31:13,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:31:13,675 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 645 transitions. [2024-11-20 04:31:13,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 04:31:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 645 transitions. [2024-11-20 04:31:13,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 04:31:13,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:31:13,677 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 04:31:13,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 04:31:13,677 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:31:13,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:31:13,677 INFO L85 PathProgramCache]: Analyzing trace with hash 48743206, now seen corresponding path program 1 times [2024-11-20 04:31:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:31:13,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96152975] [2024-11-20 04:31:13,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:31:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:31:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat