./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-4.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 2a893901067ae0432c16558f2b07e02825c27620f081523bfcd6a7f18ed4dc7d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 05:16:20,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 05:16:20,117 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 05:16:20,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 05:16:20,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 05:16:20,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 05:16:20,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 05:16:20,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 05:16:20,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 05:16:20,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 05:16:20,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 05:16:20,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 05:16:20,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 05:16:20,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 05:16:20,154 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 05:16:20,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 05:16:20,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 05:16:20,154 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 05:16:20,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 05:16:20,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 05:16:20,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 05:16:20,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 05:16:20,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 05:16:20,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 05:16:20,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 05:16:20,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 05:16:20,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 05:16:20,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 05:16:20,159 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 05:16:20,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 05:16:20,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 05:16:20,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 05:16:20,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 05:16:20,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 05:16:20,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 05:16:20,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 05:16:20,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 05:16:20,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 05:16:20,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 05:16:20,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 05:16:20,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 05:16:20,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 05:16:20,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a893901067ae0432c16558f2b07e02825c27620f081523bfcd6a7f18ed4dc7d [2024-11-10 05:16:20,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 05:16:20,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 05:16:20,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 05:16:20,411 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 05:16:20,411 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 05:16:20,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-4.i [2024-11-10 05:16:21,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 05:16:21,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 05:16:21,984 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-4.i [2024-11-10 05:16:21,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ddfcbbf/4fd5546926f04983bb26cca699e8f99c/FLAG8137407d9 [2024-11-10 05:16:22,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ddfcbbf/4fd5546926f04983bb26cca699e8f99c [2024-11-10 05:16:22,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 05:16:22,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 05:16:22,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 05:16:22,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 05:16:22,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 05:16:22,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0c32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22, skipping insertion in model container [2024-11-10 05:16:22,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 05:16:22,170 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-4.i[918,931] [2024-11-10 05:16:22,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 05:16:22,256 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 05:16:22,266 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-4.i[918,931] [2024-11-10 05:16:22,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 05:16:22,318 INFO L204 MainTranslator]: Completed translation [2024-11-10 05:16:22,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22 WrapperNode [2024-11-10 05:16:22,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 05:16:22,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 05:16:22,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 05:16:22,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 05:16:22,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,373 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 232 [2024-11-10 05:16:22,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 05:16:22,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 05:16:22,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 05:16:22,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 05:16:22,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,421 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]. [2024-11-10 05:16:22,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,428 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 05:16:22,435 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 05:16:22,435 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 05:16:22,435 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 05:16:22,436 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (1/1) ... [2024-11-10 05:16:22,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 05:16:22,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:16:22,469 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) [2024-11-10 05:16:22,472 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 [2024-11-10 05:16:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 05:16:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 05:16:22,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 05:16:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 05:16:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 05:16:22,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 05:16:22,615 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 05:16:22,617 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 05:16:22,970 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-10 05:16:22,971 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 05:16:22,995 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 05:16:22,997 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 05:16:22,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:16:22 BoogieIcfgContainer [2024-11-10 05:16:22,998 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 05:16:22,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 05:16:22,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 05:16:23,002 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 05:16:23,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:16:22" (1/3) ... [2024-11-10 05:16:23,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ef7a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:16:23, skipping insertion in model container [2024-11-10 05:16:23,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:16:22" (2/3) ... [2024-11-10 05:16:23,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ef7a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:16:23, skipping insertion in model container [2024-11-10 05:16:23,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:16:22" (3/3) ... [2024-11-10 05:16:23,005 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-4.i [2024-11-10 05:16:23,018 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 05:16:23,018 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 05:16:23,068 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 05:16:23,073 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;@c75505d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 05:16:23,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 05:16:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 68 states have (on average 1.4411764705882353) internal successors, (98), 69 states have internal predecessors, (98), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-10 05:16:23,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-10 05:16:23,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:23,092 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:23,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:23,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash 387734159, now seen corresponding path program 1 times [2024-11-10 05:16:23,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:23,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679195730] [2024-11-10 05:16:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:23,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:16:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:16:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:16:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:16:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:16:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:16:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:16:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 05:16:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 05:16:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 05:16:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 05:16:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 05:16:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 05:16:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 05:16:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 05:16:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 05:16:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 05:16:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:16:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 05:16:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:16:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:16:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:16:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:16:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:16:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 05:16:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 05:16:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 05:16:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 05:16:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 05:16:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 05:16:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-10 05:16:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 05:16:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-10 05:16:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 05:16:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-10 05:16:23,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:16:23,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679195730] [2024-11-10 05:16:23,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679195730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:16:23,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:16:23,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 05:16:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971170422] [2024-11-10 05:16:23,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:16:23,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 05:16:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:16:23,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 05:16:23,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 05:16:23,744 INFO L87 Difference]: Start difference. First operand has 105 states, 68 states have (on average 1.4411764705882353) internal successors, (98), 69 states have internal predecessors, (98), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-10 05:16:23,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:16:23,786 INFO L93 Difference]: Finished difference Result 202 states and 359 transitions. [2024-11-10 05:16:23,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 05:16:23,789 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 217 [2024-11-10 05:16:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:16:23,798 INFO L225 Difference]: With dead ends: 202 [2024-11-10 05:16:23,798 INFO L226 Difference]: Without dead ends: 100 [2024-11-10 05:16:23,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 05:16:23,804 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 05:16:23,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 05:16:23,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-10 05:16:23,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-10 05:16:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 64 states have (on average 1.390625) internal successors, (89), 64 states have internal predecessors, (89), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-10 05:16:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2024-11-10 05:16:23,862 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 217 [2024-11-10 05:16:23,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:16:23,862 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2024-11-10 05:16:23,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-10 05:16:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2024-11-10 05:16:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-10 05:16:23,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:23,869 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:23,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 05:16:23,870 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:23,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:23,875 INFO L85 PathProgramCache]: Analyzing trace with hash 519801984, now seen corresponding path program 1 times [2024-11-10 05:16:23,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:23,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847233534] [2024-11-10 05:16:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:23,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:16:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:16:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:16:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:16:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:16:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:16:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:16:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 05:16:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 05:16:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 05:16:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 05:16:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 05:16:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 05:16:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 05:16:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 05:16:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 05:16:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 05:16:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:16:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 05:16:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:16:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:16:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:16:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:16:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:16:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 05:16:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 05:16:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 05:16:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 05:16:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 05:16:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 05:16:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-10 05:16:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 05:16:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-10 05:16:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 05:16:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-10 05:16:24,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:16:24,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847233534] [2024-11-10 05:16:24,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847233534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:16:24,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:16:24,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 05:16:24,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938226076] [2024-11-10 05:16:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:16:24,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 05:16:24,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:16:24,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 05:16:24,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 05:16:24,584 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:16:24,693 INFO L93 Difference]: Finished difference Result 294 states and 465 transitions. [2024-11-10 05:16:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 05:16:24,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-10 05:16:24,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:16:24,699 INFO L225 Difference]: With dead ends: 294 [2024-11-10 05:16:24,700 INFO L226 Difference]: Without dead ends: 197 [2024-11-10 05:16:24,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 05:16:24,705 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 80 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 05:16:24,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 292 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 05:16:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-10 05:16:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 193. [2024-11-10 05:16:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 122 states have (on average 1.3934426229508197) internal successors, (170), 122 states have internal predecessors, (170), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-10 05:16:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2024-11-10 05:16:24,752 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 218 [2024-11-10 05:16:24,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:16:24,753 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2024-11-10 05:16:24,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:24,753 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2024-11-10 05:16:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-10 05:16:24,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:24,764 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:24,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 05:16:24,764 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:24,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash -775064307, now seen corresponding path program 1 times [2024-11-10 05:16:24,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:24,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577869868] [2024-11-10 05:16:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:24,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:16:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:16:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:16:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:16:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:16:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:16:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:16:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 05:16:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 05:16:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 05:16:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 05:16:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 05:16:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 05:16:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 05:16:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 05:16:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 05:16:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 05:16:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:16:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 05:16:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:16:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:16:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:16:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:16:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:16:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 05:16:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 05:16:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 05:16:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 05:16:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 05:16:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 05:16:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-10 05:16:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 05:16:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-10 05:16:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 05:16:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-10 05:16:24,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:16:24,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577869868] [2024-11-10 05:16:24,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577869868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:16:24,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:16:24,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 05:16:24,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137415069] [2024-11-10 05:16:24,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:16:24,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 05:16:24,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:16:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 05:16:24,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 05:16:24,996 INFO L87 Difference]: Start difference. First operand 193 states and 306 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:25,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:16:25,042 INFO L93 Difference]: Finished difference Result 377 states and 591 transitions. [2024-11-10 05:16:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 05:16:25,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 219 [2024-11-10 05:16:25,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:16:25,047 INFO L225 Difference]: With dead ends: 377 [2024-11-10 05:16:25,047 INFO L226 Difference]: Without dead ends: 280 [2024-11-10 05:16:25,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 05:16:25,051 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 61 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 05:16:25,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 299 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 05:16:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-10 05:16:25,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 275. [2024-11-10 05:16:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 198 states have (on average 1.4494949494949494) internal successors, (287), 200 states have internal predecessors, (287), 72 states have call successors, (72), 4 states have call predecessors, (72), 4 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-10 05:16:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 431 transitions. [2024-11-10 05:16:25,096 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 431 transitions. Word has length 219 [2024-11-10 05:16:25,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:16:25,097 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 431 transitions. [2024-11-10 05:16:25,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 431 transitions. [2024-11-10 05:16:25,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-10 05:16:25,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:25,101 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:25,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 05:16:25,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:25,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1192965267, now seen corresponding path program 1 times [2024-11-10 05:16:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:25,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254911357] [2024-11-10 05:16:25,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:25,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:16:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:16:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:16:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:16:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:16:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:16:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:16:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 05:16:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 05:16:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 05:16:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 05:16:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 05:16:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 05:16:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 05:16:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 05:16:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 05:16:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 05:16:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:16:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 05:16:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:16:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:16:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:16:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:16:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:16:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 05:16:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 05:16:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 05:16:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 05:16:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 05:16:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 05:16:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-10 05:16:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 05:16:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-10 05:16:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 05:16:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-10 05:16:25,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:16:25,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254911357] [2024-11-10 05:16:25,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254911357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:16:25,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:16:25,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 05:16:25,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637658878] [2024-11-10 05:16:25,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:16:25,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 05:16:25,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:16:25,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 05:16:25,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:16:25,776 INFO L87 Difference]: Start difference. First operand 275 states and 431 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:16:25,905 INFO L93 Difference]: Finished difference Result 786 states and 1229 transitions. [2024-11-10 05:16:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 05:16:25,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 219 [2024-11-10 05:16:25,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:16:25,912 INFO L225 Difference]: With dead ends: 786 [2024-11-10 05:16:25,912 INFO L226 Difference]: Without dead ends: 514 [2024-11-10 05:16:25,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:16:25,915 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 176 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 05:16:25,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 321 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 05:16:25,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-10 05:16:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 332. [2024-11-10 05:16:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 255 states have (on average 1.4313725490196079) internal successors, (365), 257 states have internal predecessors, (365), 72 states have call successors, (72), 4 states have call predecessors, (72), 4 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-10 05:16:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 509 transitions. [2024-11-10 05:16:25,946 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 509 transitions. Word has length 219 [2024-11-10 05:16:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:16:25,946 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 509 transitions. [2024-11-10 05:16:25,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 509 transitions. [2024-11-10 05:16:25,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-10 05:16:25,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:25,948 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:25,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 05:16:25,949 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:25,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:25,949 INFO L85 PathProgramCache]: Analyzing trace with hash 834521124, now seen corresponding path program 1 times [2024-11-10 05:16:25,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:25,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302208311] [2024-11-10 05:16:25,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:25,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:16:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:16:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:16:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:16:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:16:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:16:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:16:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 05:16:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 05:16:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 05:16:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 05:16:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 05:16:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 05:16:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 05:16:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 05:16:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 05:16:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 05:16:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:16:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 05:16:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:16:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:16:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:16:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:16:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:16:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 05:16:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 05:16:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 05:16:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:30,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 05:16:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:31,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 05:16:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:31,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 05:16:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:31,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-10 05:16:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:31,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 05:16:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:31,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-10 05:16:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:31,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 05:16:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-10 05:16:31,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:16:31,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302208311] [2024-11-10 05:16:31,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302208311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:16:31,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:16:31,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 05:16:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005805734] [2024-11-10 05:16:31,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:16:31,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 05:16:31,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:16:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 05:16:31,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-10 05:16:31,034 INFO L87 Difference]: Start difference. First operand 332 states and 509 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:16:32,431 INFO L93 Difference]: Finished difference Result 966 states and 1476 transitions. [2024-11-10 05:16:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 05:16:32,432 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 220 [2024-11-10 05:16:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:16:32,435 INFO L225 Difference]: With dead ends: 966 [2024-11-10 05:16:32,435 INFO L226 Difference]: Without dead ends: 637 [2024-11-10 05:16:32,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-10 05:16:32,437 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 392 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 05:16:32,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 787 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 05:16:32,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-10 05:16:32,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 432. [2024-11-10 05:16:32,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 319 states have (on average 1.4075235109717867) internal successors, (449), 321 states have internal predecessors, (449), 106 states have call successors, (106), 6 states have call predecessors, (106), 6 states have return successors, (106), 104 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-10 05:16:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 661 transitions. [2024-11-10 05:16:32,500 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 661 transitions. Word has length 220 [2024-11-10 05:16:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:16:32,501 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 661 transitions. [2024-11-10 05:16:32,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 661 transitions. [2024-11-10 05:16:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-10 05:16:32,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:32,504 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:32,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 05:16:32,504 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:32,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:32,505 INFO L85 PathProgramCache]: Analyzing trace with hash -861973306, now seen corresponding path program 1 times [2024-11-10 05:16:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:32,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892180624] [2024-11-10 05:16:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:32,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:16:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:16:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:16:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:16:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:16:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:16:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:16:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 05:16:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 05:16:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 05:16:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 05:16:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 05:16:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 05:16:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 05:16:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 05:16:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 05:16:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 05:16:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:16:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 05:16:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:16:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:16:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:16:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:16:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:16:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 05:16:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 05:16:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 05:16:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 05:16:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 05:16:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 05:16:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-10 05:16:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 05:16:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-10 05:16:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 05:16:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-10 05:16:32,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:16:32,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892180624] [2024-11-10 05:16:32,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892180624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:16:32,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:16:32,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 05:16:32,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091972510] [2024-11-10 05:16:32,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:16:32,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 05:16:32,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:16:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 05:16:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 05:16:32,738 INFO L87 Difference]: Start difference. First operand 432 states and 661 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:32,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:16:32,980 INFO L93 Difference]: Finished difference Result 1075 states and 1669 transitions. [2024-11-10 05:16:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 05:16:32,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 220 [2024-11-10 05:16:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:16:32,984 INFO L225 Difference]: With dead ends: 1075 [2024-11-10 05:16:32,984 INFO L226 Difference]: Without dead ends: 746 [2024-11-10 05:16:32,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:16:32,985 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 223 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 05:16:32,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 502 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 05:16:32,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-11-10 05:16:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 668. [2024-11-10 05:16:33,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 479 states have (on average 1.4008350730688934) internal successors, (671), 483 states have internal predecessors, (671), 178 states have call successors, (178), 10 states have call predecessors, (178), 10 states have return successors, (178), 174 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-10 05:16:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1027 transitions. [2024-11-10 05:16:33,035 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1027 transitions. Word has length 220 [2024-11-10 05:16:33,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:16:33,036 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 1027 transitions. [2024-11-10 05:16:33,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-10 05:16:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1027 transitions. [2024-11-10 05:16:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-10 05:16:33,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:33,038 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:33,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 05:16:33,038 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:33,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1270797531, now seen corresponding path program 1 times [2024-11-10 05:16:33,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:33,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892141231] [2024-11-10 05:16:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:33,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:16:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:16:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:16:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:16:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:16:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:16:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:16:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 05:16:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 05:16:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 05:16:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 05:16:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 05:16:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 05:16:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 05:16:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 05:16:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 05:16:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 05:16:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:16:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 05:16:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:33,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:16:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:16:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:16:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:16:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:16:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 05:16:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 05:16:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 05:16:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 05:16:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 05:16:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 05:16:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-10 05:16:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 05:16:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-10 05:16:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 05:16:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 51 proven. 141 refuted. 0 times theorem prover too weak. 2052 trivial. 0 not checked. [2024-11-10 05:16:34,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:16:34,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892141231] [2024-11-10 05:16:34,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892141231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 05:16:34,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83911870] [2024-11-10 05:16:34,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:34,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:16:34,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:16:34,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 05:16:34,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 05:16:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:34,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 05:16:34,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 05:16:35,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 735 proven. 18 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2024-11-10 05:16:35,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 05:16:35,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83911870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 05:16:35,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 05:16:35,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 16 [2024-11-10 05:16:35,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953113033] [2024-11-10 05:16:35,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 05:16:35,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 05:16:35,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:16:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 05:16:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-10 05:16:35,737 INFO L87 Difference]: Start difference. First operand 668 states and 1027 transitions. Second operand has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 5 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2024-11-10 05:16:39,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:16:39,078 INFO L93 Difference]: Finished difference Result 1817 states and 2738 transitions. [2024-11-10 05:16:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-10 05:16:39,079 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 5 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) Word has length 220 [2024-11-10 05:16:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:16:39,084 INFO L225 Difference]: With dead ends: 1817 [2024-11-10 05:16:39,084 INFO L226 Difference]: Without dead ends: 1226 [2024-11-10 05:16:39,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=781, Invalid=2879, Unknown=0, NotChecked=0, Total=3660 [2024-11-10 05:16:39,087 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 995 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 05:16:39,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1258 Invalid, 2198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 05:16:39,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2024-11-10 05:16:39,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1096. [2024-11-10 05:16:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 800 states have (on average 1.37) internal successors, (1096), 809 states have internal predecessors, (1096), 268 states have call successors, (268), 27 states have call predecessors, (268), 27 states have return successors, (268), 259 states have call predecessors, (268), 268 states have call successors, (268) [2024-11-10 05:16:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1632 transitions. [2024-11-10 05:16:39,187 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1632 transitions. Word has length 220 [2024-11-10 05:16:39,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:16:39,188 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1632 transitions. [2024-11-10 05:16:39,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 5 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2024-11-10 05:16:39,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1632 transitions. [2024-11-10 05:16:39,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-10 05:16:39,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:16:39,190 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:16:39,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 05:16:39,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:16:39,395 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:16:39,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:16:39,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1689804046, now seen corresponding path program 1 times [2024-11-10 05:16:39,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:16:39,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200211588] [2024-11-10 05:16:39,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:16:39,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:16:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:16:53,877 WARN L286 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-10 05:17:52,210 WARN L286 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 187 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)