./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.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 19ddd5d3e870010456648368aac7f13027e543c029bb47d44edea54e5df0ea2e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:26:50,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:26:50,079 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:26:50,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:26:50,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:26:50,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:26:50,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:26:50,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:26:50,100 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:26:50,100 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:26:50,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:26:50,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:26:50,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:26:50,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:26:50,101 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:26:50,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:26:50,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:26:50,102 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:26:50,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:26:50,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:26:50,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:26:50,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:26:50,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:26:50,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:26:50,106 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:26:50,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:26:50,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:26:50,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:26:50,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:26:50,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:26:50,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:26:50,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:26:50,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:26:50,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:26:50,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:26:50,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:26:50,110 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:26:50,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:26:50,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:26:50,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:26:50,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:26:50,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:26:50,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19ddd5d3e870010456648368aac7f13027e543c029bb47d44edea54e5df0ea2e [2024-10-24 07:26:50,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:26:50,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:26:50,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:26:50,355 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:26:50,355 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:26:50,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i [2024-10-24 07:26:51,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:26:51,775 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:26:51,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i [2024-10-24 07:26:51,792 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c269123b4/3d9d59afba334ea3bca4101ed2377030/FLAG600c5b634 [2024-10-24 07:26:52,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c269123b4/3d9d59afba334ea3bca4101ed2377030 [2024-10-24 07:26:52,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:26:52,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:26:52,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:26:52,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:26:52,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:26:52,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4d6818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52, skipping insertion in model container [2024-10-24 07:26:52,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:26:52,365 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i[919,932] [2024-10-24 07:26:52,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:26:52,427 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:26:52,435 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i[919,932] [2024-10-24 07:26:52,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:26:52,481 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:26:52,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52 WrapperNode [2024-10-24 07:26:52,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:26:52,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:26:52,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:26:52,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:26:52,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,532 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2024-10-24 07:26:52,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:26:52,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:26:52,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:26:52,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:26:52,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,564 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]. [2024-10-24 07:26:52,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:26:52,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:26:52,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:26:52,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:26:52,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (1/1) ... [2024-10-24 07:26:52,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:26:52,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:26:52,621 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) [2024-10-24 07:26:52,623 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 [2024-10-24 07:26:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:26:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:26:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:26:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:26:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:26:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:26:52,753 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:26:52,755 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:26:53,132 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-10-24 07:26:53,133 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:26:53,157 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:26:53,157 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:26:53,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:26:53 BoogieIcfgContainer [2024-10-24 07:26:53,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:26:53,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:26:53,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:26:53,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:26:53,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:26:52" (1/3) ... [2024-10-24 07:26:53,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ab9171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:26:53, skipping insertion in model container [2024-10-24 07:26:53,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:26:52" (2/3) ... [2024-10-24 07:26:53,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ab9171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:26:53, skipping insertion in model container [2024-10-24 07:26:53,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:26:53" (3/3) ... [2024-10-24 07:26:53,165 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i [2024-10-24 07:26:53,179 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:26:53,179 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:26:53,238 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:26:53,243 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;@6a5b3aa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:26:53,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:26:53,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 64 states have (on average 1.5625) internal successors, (100), 65 states have internal predecessors, (100), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 07:26:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 07:26:53,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:53,258 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:53,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:53,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:53,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1386516986, now seen corresponding path program 1 times [2024-10-24 07:26:53,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:53,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355916807] [2024-10-24 07:26:53,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:26:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:26:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:26:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:26:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:26:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:26:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:26:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:26:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:26:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:26:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:26:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:26:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:26:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:26:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:26:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:26:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:26:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:26:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:26:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:26:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:26:53,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:26:53,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355916807] [2024-10-24 07:26:53,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355916807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:26:53,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:26:53,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:26:53,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049792099] [2024-10-24 07:26:53,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:26:53,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:26:53,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:26:53,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:26:53,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:26:53,702 INFO L87 Difference]: Start difference. First operand has 87 states, 64 states have (on average 1.5625) internal successors, (100), 65 states have internal predecessors, (100), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 07:26:53,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:26:53,746 INFO L93 Difference]: Finished difference Result 171 states and 298 transitions. [2024-10-24 07:26:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:26:53,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 137 [2024-10-24 07:26:53,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:26:53,757 INFO L225 Difference]: With dead ends: 171 [2024-10-24 07:26:53,758 INFO L226 Difference]: Without dead ends: 85 [2024-10-24 07:26:53,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:26:53,765 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:26:53,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:26:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-24 07:26:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-24 07:26:53,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.492063492063492) internal successors, (94), 63 states have internal predecessors, (94), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 07:26:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 134 transitions. [2024-10-24 07:26:53,805 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 134 transitions. Word has length 137 [2024-10-24 07:26:53,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:26:53,806 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 134 transitions. [2024-10-24 07:26:53,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 07:26:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 134 transitions. [2024-10-24 07:26:53,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 07:26:53,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:53,811 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:53,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:26:53,811 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:53,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1057582658, now seen corresponding path program 1 times [2024-10-24 07:26:53,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:53,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234511155] [2024-10-24 07:26:53,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:53,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:26:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:26:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:26:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:26:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:26:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:26:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:26:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:26:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:26:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:26:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:26:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:26:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:26:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:26:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:26:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:26:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:26:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:26:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:26:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:26:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:26:54,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:26:54,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234511155] [2024-10-24 07:26:54,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234511155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:26:54,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:26:54,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:26:54,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565082154] [2024-10-24 07:26:54,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:26:54,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:26:54,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:26:54,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:26:54,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:26:54,296 INFO L87 Difference]: Start difference. First operand 85 states and 134 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:26:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:26:54,445 INFO L93 Difference]: Finished difference Result 292 states and 462 transitions. [2024-10-24 07:26:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:26:54,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2024-10-24 07:26:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:26:54,447 INFO L225 Difference]: With dead ends: 292 [2024-10-24 07:26:54,447 INFO L226 Difference]: Without dead ends: 208 [2024-10-24 07:26:54,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:26:54,449 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 160 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:26:54,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 438 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:26:54,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-24 07:26:54,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 177. [2024-10-24 07:26:54,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 134 states have (on average 1.507462686567164) internal successors, (202), 134 states have internal predecessors, (202), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 07:26:54,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 282 transitions. [2024-10-24 07:26:54,482 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 282 transitions. Word has length 137 [2024-10-24 07:26:54,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:26:54,483 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 282 transitions. [2024-10-24 07:26:54,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:26:54,483 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 282 transitions. [2024-10-24 07:26:54,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 07:26:54,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:54,488 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:54,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:26:54,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:54,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash 432229192, now seen corresponding path program 1 times [2024-10-24 07:26:54,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:54,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415447446] [2024-10-24 07:26:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:54,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:26:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:26:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:26:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:26:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:26:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:26:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:26:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:26:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:26:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:26:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:26:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:26:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:26:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:26:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:26:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:26:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:26:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:26:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:26:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:26:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:26:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:26:54,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:26:54,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415447446] [2024-10-24 07:26:54,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415447446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:26:54,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:26:54,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:26:54,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305779133] [2024-10-24 07:26:54,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:26:54,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:26:54,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:26:54,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:26:54,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:26:54,760 INFO L87 Difference]: Start difference. First operand 177 states and 282 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:26:55,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:26:55,009 INFO L93 Difference]: Finished difference Result 520 states and 827 transitions. [2024-10-24 07:26:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:26:55,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2024-10-24 07:26:55,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:26:55,014 INFO L225 Difference]: With dead ends: 520 [2024-10-24 07:26:55,014 INFO L226 Difference]: Without dead ends: 344 [2024-10-24 07:26:55,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 07:26:55,020 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 171 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:26:55,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 467 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:26:55,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-24 07:26:55,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 181. [2024-10-24 07:26:55,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 138 states have (on average 1.4927536231884058) internal successors, (206), 138 states have internal predecessors, (206), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 07:26:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 286 transitions. [2024-10-24 07:26:55,045 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 286 transitions. Word has length 138 [2024-10-24 07:26:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:26:55,046 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 286 transitions. [2024-10-24 07:26:55,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:26:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 286 transitions. [2024-10-24 07:26:55,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 07:26:55,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:26:55,048 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:26:55,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:26:55,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:26:55,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:26:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -39142631, now seen corresponding path program 1 times [2024-10-24 07:26:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:26:55,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352541646] [2024-10-24 07:26:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:26:55,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:26:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:03,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:03,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352541646] [2024-10-24 07:27:03,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352541646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:03,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:03,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 07:27:03,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059659617] [2024-10-24 07:27:03,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:03,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 07:27:03,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:03,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 07:27:03,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-10-24 07:27:03,206 INFO L87 Difference]: Start difference. First operand 181 states and 286 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:05,583 INFO L93 Difference]: Finished difference Result 710 states and 1095 transitions. [2024-10-24 07:27:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 07:27:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 07:27:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:05,586 INFO L225 Difference]: With dead ends: 710 [2024-10-24 07:27:05,586 INFO L226 Difference]: Without dead ends: 530 [2024-10-24 07:27:05,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2024-10-24 07:27:05,588 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 867 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:05,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 619 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 07:27:05,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-10-24 07:27:05,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 358. [2024-10-24 07:27:05,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 294 states have (on average 1.4931972789115646) internal successors, (439), 294 states have internal predecessors, (439), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:05,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 559 transitions. [2024-10-24 07:27:05,627 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 559 transitions. Word has length 139 [2024-10-24 07:27:05,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:05,628 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 559 transitions. [2024-10-24 07:27:05,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:05,629 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 559 transitions. [2024-10-24 07:27:05,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 07:27:05,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:05,633 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:05,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 07:27:05,633 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:05,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash 18115671, now seen corresponding path program 1 times [2024-10-24 07:27:05,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:05,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61988308] [2024-10-24 07:27:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:05,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:07,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:07,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61988308] [2024-10-24 07:27:07,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61988308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:07,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:07,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 07:27:07,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725556476] [2024-10-24 07:27:07,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:07,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 07:27:07,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:07,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 07:27:07,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 07:27:07,219 INFO L87 Difference]: Start difference. First operand 358 states and 559 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:08,171 INFO L93 Difference]: Finished difference Result 861 states and 1330 transitions. [2024-10-24 07:27:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 07:27:08,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 07:27:08,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:08,175 INFO L225 Difference]: With dead ends: 861 [2024-10-24 07:27:08,175 INFO L226 Difference]: Without dead ends: 593 [2024-10-24 07:27:08,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-24 07:27:08,176 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 473 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:08,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 458 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 07:27:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-10-24 07:27:08,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 423. [2024-10-24 07:27:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 359 states have (on average 1.4818941504178273) internal successors, (532), 359 states have internal predecessors, (532), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:08,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 652 transitions. [2024-10-24 07:27:08,217 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 652 transitions. Word has length 139 [2024-10-24 07:27:08,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:08,217 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 652 transitions. [2024-10-24 07:27:08,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:08,218 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 652 transitions. [2024-10-24 07:27:08,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 07:27:08,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:08,219 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:08,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 07:27:08,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:08,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash -848489257, now seen corresponding path program 1 times [2024-10-24 07:27:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:08,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962887751] [2024-10-24 07:27:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:08,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:11,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:11,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962887751] [2024-10-24 07:27:11,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962887751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:11,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:11,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 07:27:11,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736672308] [2024-10-24 07:27:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:11,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 07:27:11,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:11,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 07:27:11,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 07:27:11,389 INFO L87 Difference]: Start difference. First operand 423 states and 652 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:12,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:12,726 INFO L93 Difference]: Finished difference Result 826 states and 1270 transitions. [2024-10-24 07:27:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 07:27:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 07:27:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:12,728 INFO L225 Difference]: With dead ends: 826 [2024-10-24 07:27:12,729 INFO L226 Difference]: Without dead ends: 545 [2024-10-24 07:27:12,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-10-24 07:27:12,730 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 398 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:12,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 537 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 07:27:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-10-24 07:27:12,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 435. [2024-10-24 07:27:12,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 371 states have (on average 1.490566037735849) internal successors, (553), 371 states have internal predecessors, (553), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 673 transitions. [2024-10-24 07:27:12,748 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 673 transitions. Word has length 139 [2024-10-24 07:27:12,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:12,749 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 673 transitions. [2024-10-24 07:27:12,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 673 transitions. [2024-10-24 07:27:12,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 07:27:12,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:12,752 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:12,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 07:27:12,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:12,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:12,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1582453320, now seen corresponding path program 1 times [2024-10-24 07:27:12,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:12,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569998714] [2024-10-24 07:27:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:12,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569998714] [2024-10-24 07:27:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569998714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 07:27:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763642837] [2024-10-24 07:27:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:13,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 07:27:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:13,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 07:27:13,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 07:27:13,759 INFO L87 Difference]: Start difference. First operand 435 states and 673 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:14,061 INFO L93 Difference]: Finished difference Result 769 states and 1178 transitions. [2024-10-24 07:27:14,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 07:27:14,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 07:27:14,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:14,067 INFO L225 Difference]: With dead ends: 769 [2024-10-24 07:27:14,067 INFO L226 Difference]: Without dead ends: 543 [2024-10-24 07:27:14,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 07:27:14,069 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 202 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:14,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 444 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:27:14,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-24 07:27:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 445. [2024-10-24 07:27:14,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 381 states have (on average 1.4776902887139107) internal successors, (563), 381 states have internal predecessors, (563), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:14,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 683 transitions. [2024-10-24 07:27:14,095 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 683 transitions. Word has length 139 [2024-10-24 07:27:14,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:14,095 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 683 transitions. [2024-10-24 07:27:14,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:14,095 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 683 transitions. [2024-10-24 07:27:14,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 07:27:14,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:14,097 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:14,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 07:27:14,097 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:14,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:14,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1319006309, now seen corresponding path program 1 times [2024-10-24 07:27:14,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:14,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525641108] [2024-10-24 07:27:14,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:14,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:14,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:14,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525641108] [2024-10-24 07:27:14,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525641108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:14,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:14,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:27:14,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202188145] [2024-10-24 07:27:14,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:14,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:27:14,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:14,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:27:14,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:27:14,383 INFO L87 Difference]: Start difference. First operand 445 states and 683 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:14,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:14,555 INFO L93 Difference]: Finished difference Result 683 states and 1051 transitions. [2024-10-24 07:27:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:27:14,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-10-24 07:27:14,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:14,557 INFO L225 Difference]: With dead ends: 683 [2024-10-24 07:27:14,557 INFO L226 Difference]: Without dead ends: 435 [2024-10-24 07:27:14,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:27:14,559 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 94 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:14,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 323 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:27:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-10-24 07:27:14,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 409. [2024-10-24 07:27:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 345 states have (on average 1.4521739130434783) internal successors, (501), 345 states have internal predecessors, (501), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 621 transitions. [2024-10-24 07:27:14,580 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 621 transitions. Word has length 139 [2024-10-24 07:27:14,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:14,580 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 621 transitions. [2024-10-24 07:27:14,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 621 transitions. [2024-10-24 07:27:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 07:27:14,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:14,581 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:14,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 07:27:14,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:14,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1670456883, now seen corresponding path program 1 times [2024-10-24 07:27:14,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:14,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434728657] [2024-10-24 07:27:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:16,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:16,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434728657] [2024-10-24 07:27:16,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434728657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:16,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:16,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 07:27:16,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737711027] [2024-10-24 07:27:16,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:16,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 07:27:16,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:16,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 07:27:16,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-24 07:27:16,480 INFO L87 Difference]: Start difference. First operand 409 states and 621 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:17,412 INFO L93 Difference]: Finished difference Result 769 states and 1154 transitions. [2024-10-24 07:27:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 07:27:17,413 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 07:27:17,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:17,418 INFO L225 Difference]: With dead ends: 769 [2024-10-24 07:27:17,418 INFO L226 Difference]: Without dead ends: 589 [2024-10-24 07:27:17,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 07:27:17,420 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 354 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:17,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 496 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 07:27:17,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-10-24 07:27:17,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 437. [2024-10-24 07:27:17,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 371 states have (on average 1.431266846361186) internal successors, (531), 371 states have internal predecessors, (531), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 651 transitions. [2024-10-24 07:27:17,447 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 651 transitions. Word has length 140 [2024-10-24 07:27:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:17,448 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 651 transitions. [2024-10-24 07:27:17,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 651 transitions. [2024-10-24 07:27:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 07:27:17,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:17,450 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:17,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 07:27:17,450 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:17,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2010805354, now seen corresponding path program 1 times [2024-10-24 07:27:17,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:17,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615406373] [2024-10-24 07:27:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:17,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:24,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:24,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615406373] [2024-10-24 07:27:24,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615406373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:24,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:24,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 07:27:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782915093] [2024-10-24 07:27:24,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:24,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 07:27:24,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 07:27:24,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-24 07:27:24,793 INFO L87 Difference]: Start difference. First operand 437 states and 651 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:27,152 INFO L93 Difference]: Finished difference Result 941 states and 1378 transitions. [2024-10-24 07:27:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 07:27:27,153 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 07:27:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:27,155 INFO L225 Difference]: With dead ends: 941 [2024-10-24 07:27:27,155 INFO L226 Difference]: Without dead ends: 608 [2024-10-24 07:27:27,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2024-10-24 07:27:27,156 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 406 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:27,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 811 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 07:27:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-10-24 07:27:27,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 508. [2024-10-24 07:27:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 442 states have (on average 1.416289592760181) internal successors, (626), 442 states have internal predecessors, (626), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 746 transitions. [2024-10-24 07:27:27,183 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 746 transitions. Word has length 140 [2024-10-24 07:27:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:27,183 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 746 transitions. [2024-10-24 07:27:27,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 746 transitions. [2024-10-24 07:27:27,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 07:27:27,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:27,184 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:27,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 07:27:27,185 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:27,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1201458728, now seen corresponding path program 1 times [2024-10-24 07:27:27,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:27,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338456825] [2024-10-24 07:27:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:27,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:33,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:33,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338456825] [2024-10-24 07:27:33,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338456825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:33,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:33,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 07:27:33,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698398912] [2024-10-24 07:27:33,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:33,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 07:27:33,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:33,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 07:27:33,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-10-24 07:27:33,576 INFO L87 Difference]: Start difference. First operand 508 states and 746 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:35,348 INFO L93 Difference]: Finished difference Result 804 states and 1165 transitions. [2024-10-24 07:27:35,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 07:27:35,349 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-10-24 07:27:35,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:35,351 INFO L225 Difference]: With dead ends: 804 [2024-10-24 07:27:35,352 INFO L226 Difference]: Without dead ends: 608 [2024-10-24 07:27:35,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2024-10-24 07:27:35,353 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 326 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:35,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 904 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 07:27:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-10-24 07:27:35,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 500. [2024-10-24 07:27:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 434 states have (on average 1.4193548387096775) internal successors, (616), 434 states have internal predecessors, (616), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 736 transitions. [2024-10-24 07:27:35,380 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 736 transitions. Word has length 140 [2024-10-24 07:27:35,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:35,380 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 736 transitions. [2024-10-24 07:27:35,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 736 transitions. [2024-10-24 07:27:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 07:27:35,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:35,382 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:35,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 07:27:35,383 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:35,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash -308789874, now seen corresponding path program 1 times [2024-10-24 07:27:35,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:35,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867860473] [2024-10-24 07:27:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:35,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:46,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:46,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:46,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:46,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:46,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:46,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867860473] [2024-10-24 07:27:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867860473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:47,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:47,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 07:27:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004300566] [2024-10-24 07:27:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:47,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 07:27:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 07:27:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-10-24 07:27:47,107 INFO L87 Difference]: Start difference. First operand 500 states and 736 transitions. Second operand has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 07:27:49,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:49,894 INFO L93 Difference]: Finished difference Result 816 states and 1180 transitions. [2024-10-24 07:27:49,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 07:27:49,896 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2024-10-24 07:27:49,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:49,898 INFO L225 Difference]: With dead ends: 816 [2024-10-24 07:27:49,900 INFO L226 Difference]: Without dead ends: 620 [2024-10-24 07:27:49,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=225, Invalid=767, Unknown=0, NotChecked=0, Total=992 [2024-10-24 07:27:49,902 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 635 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:49,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 716 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 07:27:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-10-24 07:27:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 504. [2024-10-24 07:27:49,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 438 states have (on average 1.4200913242009132) internal successors, (622), 438 states have internal predecessors, (622), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 742 transitions. [2024-10-24 07:27:49,928 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 742 transitions. Word has length 141 [2024-10-24 07:27:49,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:49,928 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 742 transitions. [2024-10-24 07:27:49,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 07:27:49,929 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 742 transitions. [2024-10-24 07:27:49,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 07:27:49,930 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:49,931 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:49,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 07:27:49,931 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:49,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:49,931 INFO L85 PathProgramCache]: Analyzing trace with hash 392274704, now seen corresponding path program 1 times [2024-10-24 07:27:49,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:49,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452287219] [2024-10-24 07:27:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:49,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:27:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:27:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:27:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:27:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:27:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:27:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:27:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:27:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:27:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:27:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:27:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:27:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:27:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:49,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:27:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:50,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:27:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:50,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:27:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:50,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:27:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:50,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:27:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:50,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:27:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:50,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:27:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:27:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:27:50,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:27:50,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452287219] [2024-10-24 07:27:50,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452287219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:27:50,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:27:50,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:27:50,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000425918] [2024-10-24 07:27:50,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:27:50,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:27:50,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:27:50,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:27:50,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:27:50,010 INFO L87 Difference]: Start difference. First operand 504 states and 742 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:50,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:27:50,060 INFO L93 Difference]: Finished difference Result 778 states and 1147 transitions. [2024-10-24 07:27:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:27:50,060 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2024-10-24 07:27:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:27:50,062 INFO L225 Difference]: With dead ends: 778 [2024-10-24 07:27:50,063 INFO L226 Difference]: Without dead ends: 516 [2024-10-24 07:27:50,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:27:50,064 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 55 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:27:50,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 326 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:27:50,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-10-24 07:27:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 490. [2024-10-24 07:27:50,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 424 states have (on average 1.4056603773584906) internal successors, (596), 424 states have internal predecessors, (596), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:27:50,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 716 transitions. [2024-10-24 07:27:50,099 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 716 transitions. Word has length 141 [2024-10-24 07:27:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:27:50,100 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 716 transitions. [2024-10-24 07:27:50,100 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:27:50,100 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 716 transitions. [2024-10-24 07:27:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 07:27:50,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:27:50,101 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:27:50,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 07:27:50,102 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:27:50,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:27:50,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1227742870, now seen corresponding path program 1 times [2024-10-24 07:27:50,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:27:50,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147200856] [2024-10-24 07:27:50,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:27:50,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:27:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:28:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:28:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:28:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:28:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:28:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:28:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:28:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:28:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:28:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:28:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:28:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:28:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:28:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:28:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:28:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:28:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:28:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:28:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:28:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:28:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:28:02,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:28:02,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147200856] [2024-10-24 07:28:02,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147200856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:28:02,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:28:02,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 07:28:02,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424868483] [2024-10-24 07:28:02,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:28:02,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 07:28:02,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:28:02,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 07:28:02,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-10-24 07:28:02,858 INFO L87 Difference]: Start difference. First operand 490 states and 716 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:28:08,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:28:08,037 INFO L93 Difference]: Finished difference Result 1081 states and 1548 transitions. [2024-10-24 07:28:08,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 07:28:08,038 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2024-10-24 07:28:08,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:28:08,041 INFO L225 Difference]: With dead ends: 1081 [2024-10-24 07:28:08,041 INFO L226 Difference]: Without dead ends: 796 [2024-10-24 07:28:08,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2024-10-24 07:28:08,042 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 704 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 07:28:08,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 905 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 07:28:08,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-10-24 07:28:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 574. [2024-10-24 07:28:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 508 states have (on average 1.405511811023622) internal successors, (714), 508 states have internal predecessors, (714), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:28:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 834 transitions. [2024-10-24 07:28:08,081 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 834 transitions. Word has length 141 [2024-10-24 07:28:08,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:28:08,083 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 834 transitions. [2024-10-24 07:28:08,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:28:08,083 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 834 transitions. [2024-10-24 07:28:08,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 07:28:08,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:08,084 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:08,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 07:28:08,084 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:08,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:08,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1285001172, now seen corresponding path program 1 times [2024-10-24 07:28:08,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:08,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65217341] [2024-10-24 07:28:08,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:08,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:28:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:28:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 07:28:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:28:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 07:28:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:28:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 07:28:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:28:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 07:28:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:28:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 07:28:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:28:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 07:28:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:28:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:28:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:28:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:28:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 07:28:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 07:28:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 07:28:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:28:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 07:28:13,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:28:13,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65217341] [2024-10-24 07:28:13,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65217341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:28:13,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:28:13,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 07:28:13,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664275044] [2024-10-24 07:28:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:28:13,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 07:28:13,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:28:13,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 07:28:13,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-24 07:28:13,571 INFO L87 Difference]: Start difference. First operand 574 states and 834 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:28:18,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:28:18,311 INFO L93 Difference]: Finished difference Result 886 states and 1276 transitions. [2024-10-24 07:28:18,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 07:28:18,311 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2024-10-24 07:28:18,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:28:18,315 INFO L225 Difference]: With dead ends: 886 [2024-10-24 07:28:18,315 INFO L226 Difference]: Without dead ends: 686 [2024-10-24 07:28:18,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2024-10-24 07:28:18,318 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 317 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 07:28:18,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 703 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 07:28:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-10-24 07:28:18,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 592. [2024-10-24 07:28:18,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 526 states have (on average 1.3992395437262357) internal successors, (736), 526 states have internal predecessors, (736), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 07:28:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 856 transitions. [2024-10-24 07:28:18,350 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 856 transitions. Word has length 141 [2024-10-24 07:28:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:28:18,350 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 856 transitions. [2024-10-24 07:28:18,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 07:28:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 856 transitions. [2024-10-24 07:28:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 07:28:18,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:28:18,352 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:28:18,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 07:28:18,352 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:28:18,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:28:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash 418396244, now seen corresponding path program 1 times [2024-10-24 07:28:18,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:28:18,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229519124] [2024-10-24 07:28:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:28:18,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:28:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat