./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.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 17124c627a77300cd44285b9c4c316438e4d73c0a011ab8330c0a1114bb82733 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 03:08:22,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 03:08:22,397 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 03:08:22,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 03:08:22,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 03:08:22,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 03:08:22,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 03:08:22,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 03:08:22,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 03:08:22,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 03:08:22,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 03:08:22,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 03:08:22,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 03:08:22,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 03:08:22,428 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 03:08:22,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 03:08:22,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 03:08:22,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 03:08:22,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 03:08:22,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 03:08:22,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 03:08:22,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 03:08:22,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 03:08:22,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 03:08:22,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 03:08:22,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 03:08:22,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 03:08:22,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 03:08:22,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 03:08:22,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 03:08:22,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 03:08:22,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 03:08:22,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 03:08:22,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 03:08:22,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 03:08:22,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 03:08:22,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 03:08:22,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 03:08:22,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 03:08:22,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 03:08:22,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 03:08:22,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 03:08:22,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17124c627a77300cd44285b9c4c316438e4d73c0a011ab8330c0a1114bb82733 [2024-11-20 03:08:22,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 03:08:22,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 03:08:22,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 03:08:22,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 03:08:22,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 03:08:22,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i [2024-11-20 03:08:24,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 03:08:24,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 03:08:24,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i [2024-11-20 03:08:24,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a115cc27a/72f5882c169445cfaa814a8fffe2eebb/FLAGa8d82a35e [2024-11-20 03:08:24,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a115cc27a/72f5882c169445cfaa814a8fffe2eebb [2024-11-20 03:08:24,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 03:08:24,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 03:08:24,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 03:08:24,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 03:08:24,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 03:08:24,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:24,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de7e6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24, skipping insertion in model container [2024-11-20 03:08:24,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:24,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 03:08:24,716 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_fillercodesize_ps-cn-10_file-10.i[915,928] [2024-11-20 03:08:24,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 03:08:24,791 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 03:08:24,803 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_fillercodesize_ps-cn-10_file-10.i[915,928] [2024-11-20 03:08:24,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 03:08:24,886 INFO L204 MainTranslator]: Completed translation [2024-11-20 03:08:24,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24 WrapperNode [2024-11-20 03:08:24,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 03:08:24,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 03:08:24,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 03:08:24,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 03:08:24,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:24,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,012 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 214 [2024-11-20 03:08:25,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 03:08:25,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 03:08:25,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 03:08:25,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 03:08:25,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,029 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,058 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 03:08:25,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 03:08:25,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 03:08:25,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 03:08:25,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 03:08:25,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (1/1) ... [2024-11-20 03:08:25,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 03:08:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 03:08:25,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 03:08:25,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 03:08:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 03:08:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 03:08:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 03:08:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 03:08:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 03:08:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 03:08:25,260 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 03:08:25,262 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 03:08:25,706 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-20 03:08:25,707 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 03:08:25,720 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 03:08:25,720 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 03:08:25,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:08:25 BoogieIcfgContainer [2024-11-20 03:08:25,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 03:08:25,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 03:08:25,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 03:08:25,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 03:08:25,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:08:24" (1/3) ... [2024-11-20 03:08:25,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1d9cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:08:25, skipping insertion in model container [2024-11-20 03:08:25,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:08:24" (2/3) ... [2024-11-20 03:08:25,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1d9cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:08:25, skipping insertion in model container [2024-11-20 03:08:25,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:08:25" (3/3) ... [2024-11-20 03:08:25,728 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-10.i [2024-11-20 03:08:25,741 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 03:08:25,741 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 03:08:25,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 03:08:25,811 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;@2a094240, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 03:08:25,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 03:08:25,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 64 states have (on average 1.40625) internal successors, (90), 65 states have internal predecessors, (90), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 03:08:25,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-20 03:08:25,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:08:25,828 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:08:25,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:08:25,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:08:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2101394287, now seen corresponding path program 1 times [2024-11-20 03:08:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:08:25,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697687381] [2024-11-20 03:08:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:08:25,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:08:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:08:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:08:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 03:08:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:08:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 03:08:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:08:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 03:08:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:08:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:08:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:08:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 03:08:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:08:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 03:08:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:08:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 03:08:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:08:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 03:08:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:08:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 03:08:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:08:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 03:08:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 03:08:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 03:08:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 03:08:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:08:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-20 03:08:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:08:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697687381] [2024-11-20 03:08:26,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697687381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:08:26,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:08:26,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 03:08:26,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714564401] [2024-11-20 03:08:26,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:08:26,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 03:08:26,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:08:26,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 03:08:26,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 03:08:26,342 INFO L87 Difference]: Start difference. First operand has 92 states, 64 states have (on average 1.40625) internal successors, (90), 65 states have internal predecessors, (90), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-20 03:08:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:08:26,377 INFO L93 Difference]: Finished difference Result 177 states and 299 transitions. [2024-11-20 03:08:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 03:08:26,380 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) Word has length 164 [2024-11-20 03:08:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:08:26,391 INFO L225 Difference]: With dead ends: 177 [2024-11-20 03:08:26,391 INFO L226 Difference]: Without dead ends: 88 [2024-11-20 03:08:26,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 03:08:26,400 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 03:08:26,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 03:08:26,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-20 03:08:26,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-20 03:08:26,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 61 states have internal predecessors, (82), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 03:08:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 132 transitions. [2024-11-20 03:08:26,464 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 132 transitions. Word has length 164 [2024-11-20 03:08:26,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:08:26,466 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 132 transitions. [2024-11-20 03:08:26,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-20 03:08:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2024-11-20 03:08:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-20 03:08:26,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:08:26,471 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:08:26,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 03:08:26,472 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:08:26,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:08:26,473 INFO L85 PathProgramCache]: Analyzing trace with hash -615042911, now seen corresponding path program 1 times [2024-11-20 03:08:26,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:08:26,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774246571] [2024-11-20 03:08:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:08:26,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:08:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:08:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:08:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 03:08:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:08:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 03:08:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:08:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 03:08:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:08:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:08:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:08:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 03:08:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:08:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 03:08:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:08:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 03:08:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:08:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 03:08:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:08:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 03:08:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:08:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 03:08:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 03:08:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 03:08:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 03:08:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:08:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-20 03:08:27,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:08:27,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774246571] [2024-11-20 03:08:27,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774246571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:08:27,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:08:27,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 03:08:27,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541987670] [2024-11-20 03:08:27,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:08:27,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 03:08:27,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:08:27,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 03:08:27,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 03:08:27,239 INFO L87 Difference]: Start difference. First operand 88 states and 132 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:27,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:08:27,474 INFO L93 Difference]: Finished difference Result 259 states and 391 transitions. [2024-11-20 03:08:27,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 03:08:27,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 165 [2024-11-20 03:08:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:08:27,478 INFO L225 Difference]: With dead ends: 259 [2024-11-20 03:08:27,478 INFO L226 Difference]: Without dead ends: 174 [2024-11-20 03:08:27,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 03:08:27,481 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 94 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 03:08:27,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 499 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 03:08:27,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-20 03:08:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2024-11-20 03:08:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 87 states have internal predecessors, (112), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:08:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 212 transitions. [2024-11-20 03:08:27,518 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 212 transitions. Word has length 165 [2024-11-20 03:08:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:08:27,521 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 212 transitions. [2024-11-20 03:08:27,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:27,522 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 212 transitions. [2024-11-20 03:08:27,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-20 03:08:27,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:08:27,526 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:08:27,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 03:08:27,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:08:27,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:08:27,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2087881671, now seen corresponding path program 1 times [2024-11-20 03:08:27,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:08:27,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293063520] [2024-11-20 03:08:27,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:08:27,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:08:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:08:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:08:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 03:08:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:08:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 03:08:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:08:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 03:08:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:08:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:08:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:08:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 03:08:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:08:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 03:08:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:08:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 03:08:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:08:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 03:08:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:08:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 03:08:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:08:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 03:08:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 03:08:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 03:08:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 03:08:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:08:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-20 03:08:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:08:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293063520] [2024-11-20 03:08:27,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293063520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:08:27,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:08:27,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 03:08:27,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657215308] [2024-11-20 03:08:27,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:08:27,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 03:08:27,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:08:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 03:08:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 03:08:27,894 INFO L87 Difference]: Start difference. First operand 140 states and 212 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:28,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:08:28,029 INFO L93 Difference]: Finished difference Result 237 states and 353 transitions. [2024-11-20 03:08:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 03:08:28,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 166 [2024-11-20 03:08:28,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:08:28,033 INFO L225 Difference]: With dead ends: 237 [2024-11-20 03:08:28,033 INFO L226 Difference]: Without dead ends: 150 [2024-11-20 03:08:28,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 03:08:28,035 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 112 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 03:08:28,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 224 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 03:08:28,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-20 03:08:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-20 03:08:28,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.263157894736842) internal successors, (120), 95 states have internal predecessors, (120), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:08:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-11-20 03:08:28,056 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 166 [2024-11-20 03:08:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:08:28,057 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-11-20 03:08:28,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-11-20 03:08:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 03:08:28,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:08:28,060 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:08:28,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 03:08:28,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:08:28,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:08:28,061 INFO L85 PathProgramCache]: Analyzing trace with hash 228644080, now seen corresponding path program 1 times [2024-11-20 03:08:28,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:08:28,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78360861] [2024-11-20 03:08:28,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:08:28,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:08:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:08:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:08:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 03:08:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:08:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 03:08:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:08:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 03:08:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:08:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:08:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:08:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 03:08:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:08:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 03:08:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:08:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 03:08:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:08:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 03:08:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:08:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 03:08:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:08:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 03:08:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 03:08:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 03:08:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 03:08:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:08:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-20 03:08:28,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:08:28,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78360861] [2024-11-20 03:08:28,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78360861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:08:28,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:08:28,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 03:08:28,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575829706] [2024-11-20 03:08:28,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:08:28,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 03:08:28,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:08:28,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 03:08:28,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 03:08:28,452 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:28,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:08:28,597 INFO L93 Difference]: Finished difference Result 244 states and 359 transitions. [2024-11-20 03:08:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 03:08:28,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-11-20 03:08:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:08:28,600 INFO L225 Difference]: With dead ends: 244 [2024-11-20 03:08:28,600 INFO L226 Difference]: Without dead ends: 152 [2024-11-20 03:08:28,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 03:08:28,606 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 107 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 03:08:28,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 304 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 03:08:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-20 03:08:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2024-11-20 03:08:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.263157894736842) internal successors, (120), 95 states have internal predecessors, (120), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:08:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-11-20 03:08:28,643 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 167 [2024-11-20 03:08:28,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:08:28,643 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-11-20 03:08:28,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:28,644 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-11-20 03:08:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 03:08:28,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:08:28,646 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:08:28,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 03:08:28,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:08:28,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:08:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash -404164286, now seen corresponding path program 1 times [2024-11-20 03:08:28,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:08:28,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659151163] [2024-11-20 03:08:28,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:08:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:08:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:08:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:08:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 03:08:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:08:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 03:08:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:08:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 03:08:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:08:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:08:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:08:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 03:08:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:08:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 03:08:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:08:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 03:08:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:08:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 03:08:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:08:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 03:08:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:08:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 03:08:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 03:08:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 03:08:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 03:08:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:08:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:08:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-20 03:08:28,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:08:28,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659151163] [2024-11-20 03:08:28,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659151163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:08:28,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:08:28,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 03:08:28,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274648988] [2024-11-20 03:08:28,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:08:28,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 03:08:28,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:08:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 03:08:28,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:08:28,894 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:08:28,924 INFO L93 Difference]: Finished difference Result 242 states and 355 transitions. [2024-11-20 03:08:28,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 03:08:28,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-11-20 03:08:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:08:28,927 INFO L225 Difference]: With dead ends: 242 [2024-11-20 03:08:28,927 INFO L226 Difference]: Without dead ends: 150 [2024-11-20 03:08:28,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:08:28,929 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 124 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 03:08:28,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 267 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 03:08:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-20 03:08:28,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-20 03:08:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.2421052631578948) internal successors, (118), 95 states have internal predecessors, (118), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:08:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 218 transitions. [2024-11-20 03:08:28,955 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 218 transitions. Word has length 167 [2024-11-20 03:08:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:08:28,955 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 218 transitions. [2024-11-20 03:08:28,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:08:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 218 transitions. [2024-11-20 03:08:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 03:08:28,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:08:28,958 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:08:28,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 03:08:28,958 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:08:28,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:08:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash 18537540, now seen corresponding path program 1 times [2024-11-20 03:08:28,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:08:28,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111353673] [2024-11-20 03:08:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:08:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:08:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:09:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:09:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 03:09:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:09:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 03:09:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:09:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 03:09:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:09:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:09:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:09:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 03:09:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:09:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 03:09:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:09:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 03:09:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:09:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 03:09:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:09:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 03:09:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:09:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 03:09:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 03:09:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 03:09:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 03:09:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:09:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-20 03:09:30,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:09:30,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111353673] [2024-11-20 03:09:30,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111353673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:09:30,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:09:30,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 03:09:30,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585854271] [2024-11-20 03:09:30,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:09:30,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 03:09:30,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:09:30,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 03:09:30,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-20 03:09:30,677 INFO L87 Difference]: Start difference. First operand 150 states and 218 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-20 03:09:33,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:09:33,342 INFO L93 Difference]: Finished difference Result 425 states and 605 transitions. [2024-11-20 03:09:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 03:09:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-11-20 03:09:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:09:33,346 INFO L225 Difference]: With dead ends: 425 [2024-11-20 03:09:33,346 INFO L226 Difference]: Without dead ends: 335 [2024-11-20 03:09:33,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2024-11-20 03:09:33,348 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 922 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 03:09:33,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 640 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 03:09:33,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-20 03:09:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 177. [2024-11-20 03:09:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 121 states have internal predecessors, (154), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:09:33,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 254 transitions. [2024-11-20 03:09:33,379 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 254 transitions. Word has length 167 [2024-11-20 03:09:33,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:09:33,379 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 254 transitions. [2024-11-20 03:09:33,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-20 03:09:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 254 transitions. [2024-11-20 03:09:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 03:09:33,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:09:33,382 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:09:33,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 03:09:33,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:09:33,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:09:33,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1166662980, now seen corresponding path program 1 times [2024-11-20 03:09:33,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:09:33,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157704635] [2024-11-20 03:09:33,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:09:33,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:09:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:09:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:09:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 03:09:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:09:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 03:09:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:09:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 03:09:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:09:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:09:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:09:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 03:09:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:09:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 03:09:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:09:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 03:09:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:09:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 03:09:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:09:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 03:09:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:09:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 03:09:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 03:09:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 03:09:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 03:09:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:09:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:09:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-20 03:09:41,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:09:41,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157704635] [2024-11-20 03:09:41,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157704635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:09:41,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:09:41,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 03:09:41,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891623630] [2024-11-20 03:09:41,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:09:41,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 03:09:41,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:09:41,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 03:09:41,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-20 03:09:41,727 INFO L87 Difference]: Start difference. First operand 177 states and 254 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:09:43,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:09:43,656 INFO L93 Difference]: Finished difference Result 460 states and 646 transitions. [2024-11-20 03:09:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 03:09:43,657 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-11-20 03:09:43,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:09:43,660 INFO L225 Difference]: With dead ends: 460 [2024-11-20 03:09:43,660 INFO L226 Difference]: Without dead ends: 370 [2024-11-20 03:09:43,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2024-11-20 03:09:43,661 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 704 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 03:09:43,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 703 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 03:09:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-20 03:09:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 178. [2024-11-20 03:09:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 122 states have (on average 1.278688524590164) internal successors, (156), 122 states have internal predecessors, (156), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:09:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 256 transitions. [2024-11-20 03:09:43,681 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 256 transitions. Word has length 167 [2024-11-20 03:09:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:09:43,682 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 256 transitions. [2024-11-20 03:09:43,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-20 03:09:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 256 transitions. [2024-11-20 03:09:43,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 03:09:43,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:09:43,684 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:09:43,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 03:09:43,685 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:09:43,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:09:43,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1846721350, now seen corresponding path program 1 times [2024-11-20 03:09:43,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:09:43,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017565765] [2024-11-20 03:09:43,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:09:43,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:09:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat