./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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-pr-co_file-59.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 bd989104ff103e9b5ed152f8842800410e6bde451d7ac2b024a1b80da691bd1b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:46:16,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:46:16,370 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:46:16,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:46:16,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:46:16,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:46:16,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:46:16,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:46:16,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:46:16,404 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:46:16,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:46:16,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:46:16,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:46:16,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:46:16,411 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:46:16,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:46:16,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:46:16,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:46:16,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:46:16,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:46:16,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:46:16,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:46:16,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:46:16,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:46:16,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:46:16,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:46:16,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:46:16,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:46:16,416 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:46:16,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:46:16,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:46:16,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:46:16,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:46:16,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:46:16,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:46:16,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:46:16,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:46:16,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:46:16,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:46:16,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:46:16,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:46:16,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:46:16,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd989104ff103e9b5ed152f8842800410e6bde451d7ac2b024a1b80da691bd1b [2024-11-16 14:46:16,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:46:16,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:46:16,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:46:16,712 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:46:16,713 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:46:16,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-59.i [2024-11-16 14:46:18,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:46:18,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:46:18,405 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-59.i [2024-11-16 14:46:18,419 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81b62c7f3/efa763e9615c472fa052a153f7fae171/FLAGef4460eb7 [2024-11-16 14:46:18,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81b62c7f3/efa763e9615c472fa052a153f7fae171 [2024-11-16 14:46:18,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:46:18,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:46:18,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:46:18,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:46:18,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:46:18,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:18,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f31d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18, skipping insertion in model container [2024-11-16 14:46:18,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:18,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:46:18,712 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-pr-co_file-59.i[919,932] [2024-11-16 14:46:18,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:46:18,814 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:46:18,829 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-pr-co_file-59.i[919,932] [2024-11-16 14:46:18,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:46:18,905 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:46:18,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18 WrapperNode [2024-11-16 14:46:18,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:46:18,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:46:18,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:46:18,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:46:18,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:18,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:18,977 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2024-11-16 14:46:18,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:46:18,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:46:18,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:46:18,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:46:18,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:18,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:18,999 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,039 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]. [2024-11-16 14:46:19,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,059 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:46:19,081 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:46:19,082 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:46:19,082 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:46:19,083 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (1/1) ... [2024-11-16 14:46:19,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:46:19,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:46:19,120 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) [2024-11-16 14:46:19,123 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 [2024-11-16 14:46:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:46:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:46:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:46:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:46:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:46:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:46:19,268 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:46:19,270 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:46:19,825 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-16 14:46:19,826 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:46:19,854 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:46:19,856 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 14:46:19,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:46:19 BoogieIcfgContainer [2024-11-16 14:46:19,857 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:46:19,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:46:19,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:46:19,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:46:19,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:46:18" (1/3) ... [2024-11-16 14:46:19,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574d4d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:46:19, skipping insertion in model container [2024-11-16 14:46:19,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:46:18" (2/3) ... [2024-11-16 14:46:19,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574d4d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:46:19, skipping insertion in model container [2024-11-16 14:46:19,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:46:19" (3/3) ... [2024-11-16 14:46:19,868 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-59.i [2024-11-16 14:46:19,884 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:46:19,885 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:46:19,956 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:46:19,964 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;@9a4ada3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:46:19,964 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:46:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 67 states have internal predecessors, (97), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 14:46:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 14:46:19,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:19,984 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:19,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:19,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:19,991 INFO L85 PathProgramCache]: Analyzing trace with hash -322578659, now seen corresponding path program 1 times [2024-11-16 14:46:19,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:19,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716149331] [2024-11-16 14:46:19,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:19,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:46:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:46:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 14:46:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:46:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 14:46:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:46:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 14:46:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:46:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:46:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:46:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:46:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:46:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:46:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:46:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:46:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:46:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:46:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:46:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:46:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:46:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 14:46:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 14:46:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 14:46:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 14:46:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 14:46:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 14:46:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 14:46:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:46:20,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:46:20,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716149331] [2024-11-16 14:46:20,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716149331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:46:20,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:46:20,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:46:20,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900961446] [2024-11-16 14:46:20,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:46:20,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:46:20,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:46:20,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:46:20,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:46:20,941 INFO L87 Difference]: Start difference. First operand has 96 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 67 states have internal predecessors, (97), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:21,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:46:21,029 INFO L93 Difference]: Finished difference Result 184 states and 322 transitions. [2024-11-16 14:46:21,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:46:21,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-11-16 14:46:21,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:46:21,040 INFO L225 Difference]: With dead ends: 184 [2024-11-16 14:46:21,041 INFO L226 Difference]: Without dead ends: 91 [2024-11-16 14:46:21,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:46:21,047 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:46:21,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 258 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:46:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-16 14:46:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-16 14:46:21,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 62 states have internal predecessors, (85), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 14:46:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 139 transitions. [2024-11-16 14:46:21,099 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 139 transitions. Word has length 178 [2024-11-16 14:46:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:46:21,102 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 139 transitions. [2024-11-16 14:46:21,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 139 transitions. [2024-11-16 14:46:21,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 14:46:21,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:21,106 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:21,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:46:21,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:21,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash -519092164, now seen corresponding path program 1 times [2024-11-16 14:46:21,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:21,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787626713] [2024-11-16 14:46:21,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:21,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:46:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:46:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 14:46:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:46:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 14:46:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:46:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 14:46:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:46:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:46:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:46:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:46:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:46:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:46:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:46:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:46:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:46:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:46:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:46:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:46:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:46:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 14:46:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 14:46:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 14:46:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 14:46:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 14:46:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 14:46:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 14:46:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:46:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:46:21,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787626713] [2024-11-16 14:46:21,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787626713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:46:21,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:46:21,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:46:21,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715952597] [2024-11-16 14:46:21,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:46:21,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:46:21,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:46:21,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:46:21,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:46:21,556 INFO L87 Difference]: Start difference. First operand 91 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:46:21,808 INFO L93 Difference]: Finished difference Result 269 states and 413 transitions. [2024-11-16 14:46:21,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:46:21,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-11-16 14:46:21,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:46:21,816 INFO L225 Difference]: With dead ends: 269 [2024-11-16 14:46:21,816 INFO L226 Difference]: Without dead ends: 181 [2024-11-16 14:46:21,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:46:21,821 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 111 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:46:21,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 392 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 14:46:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-16 14:46:21,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 153. [2024-11-16 14:46:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 96 states have (on average 1.34375) internal successors, (129), 96 states have internal predecessors, (129), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 14:46:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 237 transitions. [2024-11-16 14:46:21,864 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 237 transitions. Word has length 178 [2024-11-16 14:46:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:46:21,866 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 237 transitions. [2024-11-16 14:46:21,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 237 transitions. [2024-11-16 14:46:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 14:46:21,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:21,869 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:21,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:46:21,870 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:21,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:21,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1416199250, now seen corresponding path program 1 times [2024-11-16 14:46:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:21,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222435789] [2024-11-16 14:46:21,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:21,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:46:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:46:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 14:46:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:46:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 14:46:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:46:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 14:46:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:46:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:46:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:46:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:46:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:46:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:46:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:46:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:46:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:46:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:46:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:46:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:46:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:46:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 14:46:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 14:46:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 14:46:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 14:46:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 14:46:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 14:46:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 14:46:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:46:22,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:46:22,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222435789] [2024-11-16 14:46:22,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222435789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:46:22,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:46:22,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:46:22,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227849490] [2024-11-16 14:46:22,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:46:22,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:46:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:46:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:46:22,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:46:22,507 INFO L87 Difference]: Start difference. First operand 153 states and 237 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:22,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:46:22,612 INFO L93 Difference]: Finished difference Result 257 states and 400 transitions. [2024-11-16 14:46:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:46:22,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 179 [2024-11-16 14:46:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:46:22,616 INFO L225 Difference]: With dead ends: 257 [2024-11-16 14:46:22,616 INFO L226 Difference]: Without dead ends: 161 [2024-11-16 14:46:22,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:46:22,621 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 59 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 14:46:22,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 235 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 14:46:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-16 14:46:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2024-11-16 14:46:22,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 96 states have internal predecessors, (128), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 14:46:22,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 236 transitions. [2024-11-16 14:46:22,658 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 236 transitions. Word has length 179 [2024-11-16 14:46:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:46:22,660 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 236 transitions. [2024-11-16 14:46:22,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 236 transitions. [2024-11-16 14:46:22,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 14:46:22,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:22,665 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:22,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 14:46:22,666 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:22,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:22,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1107575933, now seen corresponding path program 1 times [2024-11-16 14:46:22,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:22,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184815158] [2024-11-16 14:46:22,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:22,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:46:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:46:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 14:46:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:46:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 14:46:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:46:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 14:46:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:46:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:46:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:46:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:46:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:46:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:46:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:46:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:46:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:46:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:46:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:46:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:46:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:46:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 14:46:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 14:46:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 14:46:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 14:46:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 14:46:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 14:46:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 14:46:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:46:22,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:46:22,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184815158] [2024-11-16 14:46:22,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184815158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:46:22,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:46:22,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:46:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003344749] [2024-11-16 14:46:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:46:22,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:46:22,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:46:22,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:46:22,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:46:22,983 INFO L87 Difference]: Start difference. First operand 153 states and 236 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:46:23,040 INFO L93 Difference]: Finished difference Result 257 states and 399 transitions. [2024-11-16 14:46:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:46:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 180 [2024-11-16 14:46:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:46:23,043 INFO L225 Difference]: With dead ends: 257 [2024-11-16 14:46:23,043 INFO L226 Difference]: Without dead ends: 161 [2024-11-16 14:46:23,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:46:23,049 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 57 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:46:23,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 256 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:46:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-16 14:46:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2024-11-16 14:46:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 96 states have (on average 1.3229166666666667) internal successors, (127), 96 states have internal predecessors, (127), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 14:46:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 235 transitions. [2024-11-16 14:46:23,081 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 235 transitions. Word has length 180 [2024-11-16 14:46:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:46:23,083 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 235 transitions. [2024-11-16 14:46:23,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 235 transitions. [2024-11-16 14:46:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 14:46:23,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:23,086 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:23,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 14:46:23,086 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:23,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:23,087 INFO L85 PathProgramCache]: Analyzing trace with hash -285010323, now seen corresponding path program 1 times [2024-11-16 14:46:23,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:23,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996459432] [2024-11-16 14:46:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:23,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:46:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:46:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 14:46:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:46:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 14:46:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:46:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 14:46:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:46:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:46:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:46:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:46:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:46:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:46:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:46:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:46:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:46:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:46:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:46:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:46:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:46:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 14:46:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 14:46:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 14:46:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 14:46:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 14:46:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 14:46:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 14:46:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:46:23,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:46:23,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996459432] [2024-11-16 14:46:23,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996459432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:46:23,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:46:23,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 14:46:23,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110307184] [2024-11-16 14:46:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:46:23,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 14:46:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:46:23,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 14:46:23,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 14:46:23,972 INFO L87 Difference]: Start difference. First operand 153 states and 235 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:24,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:46:24,574 INFO L93 Difference]: Finished difference Result 299 states and 451 transitions. [2024-11-16 14:46:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 14:46:24,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-16 14:46:24,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:46:24,578 INFO L225 Difference]: With dead ends: 299 [2024-11-16 14:46:24,578 INFO L226 Difference]: Without dead ends: 211 [2024-11-16 14:46:24,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-16 14:46:24,582 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 221 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 14:46:24,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 647 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 14:46:24,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-16 14:46:24,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 167. [2024-11-16 14:46:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 110 states have (on average 1.3272727272727274) internal successors, (146), 110 states have internal predecessors, (146), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 14:46:24,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 254 transitions. [2024-11-16 14:46:24,620 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 254 transitions. Word has length 181 [2024-11-16 14:46:24,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:46:24,620 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 254 transitions. [2024-11-16 14:46:24,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:24,621 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 254 transitions. [2024-11-16 14:46:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 14:46:24,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:24,623 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:24,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 14:46:24,623 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:24,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:24,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1479441903, now seen corresponding path program 1 times [2024-11-16 14:46:24,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:24,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509306181] [2024-11-16 14:46:24,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:24,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:46:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:46:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 14:46:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:46:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 14:46:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:46:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 14:46:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:46:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:46:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:46:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:46:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:46:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:46:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:46:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:46:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:46:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:46:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 14:46:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:46:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:46:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 14:46:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 14:46:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 14:46:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 14:46:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 14:46:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 14:46:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:24,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 14:46:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:25,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:46:25,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:46:25,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509306181] [2024-11-16 14:46:25,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509306181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:46:25,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:46:25,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:46:25,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276311173] [2024-11-16 14:46:25,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:46:25,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:46:25,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:46:25,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:46:25,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:46:25,005 INFO L87 Difference]: Start difference. First operand 167 states and 254 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:25,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:46:25,200 INFO L93 Difference]: Finished difference Result 355 states and 540 transitions. [2024-11-16 14:46:25,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:46:25,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2024-11-16 14:46:25,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:46:25,203 INFO L225 Difference]: With dead ends: 355 [2024-11-16 14:46:25,203 INFO L226 Difference]: Without dead ends: 261 [2024-11-16 14:46:25,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:46:25,205 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 119 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:46:25,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 390 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 14:46:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-16 14:46:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 235. [2024-11-16 14:46:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 150 states have (on average 1.34) internal successors, (201), 150 states have internal predecessors, (201), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 14:46:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 363 transitions. [2024-11-16 14:46:25,238 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 363 transitions. Word has length 182 [2024-11-16 14:46:25,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:46:25,239 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 363 transitions. [2024-11-16 14:46:25,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-16 14:46:25,239 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 363 transitions. [2024-11-16 14:46:25,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 14:46:25,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:25,241 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:25,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 14:46:25,242 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:25,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:25,242 INFO L85 PathProgramCache]: Analyzing trace with hash -319325702, now seen corresponding path program 1 times [2024-11-16 14:46:25,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:25,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967596518] [2024-11-16 14:46:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:25,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 14:46:25,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632455563] [2024-11-16 14:46:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:25,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:46:25,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:46:25,401 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) [2024-11-16 14:46:25,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 14:46:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:25,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-16 14:46:25,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:46:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 222 proven. 72 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2024-11-16 14:46:26,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:46:49,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:46:49,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967596518] [2024-11-16 14:46:49,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 14:46:49,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632455563] [2024-11-16 14:46:49,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632455563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:46:49,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 14:46:49,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-16 14:46:49,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177380086] [2024-11-16 14:46:49,365 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 14:46:49,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 14:46:49,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:46:49,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 14:46:49,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=211, Unknown=5, NotChecked=0, Total=272 [2024-11-16 14:46:49,368 INFO L87 Difference]: Start difference. First operand 235 states and 363 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 14:46:52,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:46:52,488 INFO L93 Difference]: Finished difference Result 446 states and 685 transitions. [2024-11-16 14:46:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 14:46:52,489 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 182 [2024-11-16 14:46:52,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:46:52,491 INFO L225 Difference]: With dead ends: 446 [2024-11-16 14:46:52,491 INFO L226 Difference]: Without dead ends: 276 [2024-11-16 14:46:52,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=115, Invalid=432, Unknown=5, NotChecked=0, Total=552 [2024-11-16 14:46:52,497 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 97 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 14:46:52,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 678 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 14:46:52,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-16 14:46:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 243. [2024-11-16 14:46:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 157 states have (on average 1.3375796178343948) internal successors, (210), 157 states have internal predecessors, (210), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 14:46:52,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 372 transitions. [2024-11-16 14:46:52,535 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 372 transitions. Word has length 182 [2024-11-16 14:46:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:46:52,536 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 372 transitions. [2024-11-16 14:46:52,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-16 14:46:52,537 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 372 transitions. [2024-11-16 14:46:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 14:46:52,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:46:52,540 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:46:52,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 14:46:52,740 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 [2024-11-16 14:46:52,741 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:46:52,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:46:52,742 INFO L85 PathProgramCache]: Analyzing trace with hash 677609120, now seen corresponding path program 1 times [2024-11-16 14:46:52,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:46:52,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671186] [2024-11-16 14:46:52,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:52,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:46:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 14:46:52,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939571053] [2024-11-16 14:46:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:46:52,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:46:52,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:46:52,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 14:46:52,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 14:46:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:46:53,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-16 14:46:53,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:47:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 338 proven. 300 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2024-11-16 14:47:01,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:47:22,872 WARN L286 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-16 14:47:49,854 WARN L286 SmtUtils]: Spent 13.41s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)