./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.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 23abccf904bd3af5b349907c0c1fe36b3f043e0f305d7494258ac56b80497131 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 09:26:52,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 09:26:52,279 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 09:26:52,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 09:26:52,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 09:26:52,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 09:26:52,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 09:26:52,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 09:26:52,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 09:26:52,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 09:26:52,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 09:26:52,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 09:26:52,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 09:26:52,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 09:26:52,311 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 09:26:52,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 09:26:52,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 09:26:52,314 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 09:26:52,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 09:26:52,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 09:26:52,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 09:26:52,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 09:26:52,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 09:26:52,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 09:26:52,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 09:26:52,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 09:26:52,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 09:26:52,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 09:26:52,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 09:26:52,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 09:26:52,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 09:26:52,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 09:26:52,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:26:52,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 09:26:52,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 09:26:52,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 09:26:52,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 09:26:52,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 09:26:52,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 09:26:52,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 09:26:52,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 09:26:52,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 09:26:52,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23abccf904bd3af5b349907c0c1fe36b3f043e0f305d7494258ac56b80497131 [2024-10-14 09:26:52,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 09:26:52,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 09:26:52,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 09:26:52,550 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 09:26:52,550 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 09:26:52,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i [2024-10-14 09:26:53,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 09:26:53,904 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 09:26:53,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i [2024-10-14 09:26:53,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae4d9445/08bcc338872c4a37911b7a4f8490e4b8/FLAG4d5d682ef [2024-10-14 09:26:53,925 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae4d9445/08bcc338872c4a37911b7a4f8490e4b8 [2024-10-14 09:26:53,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 09:26:53,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 09:26:53,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 09:26:53,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 09:26:53,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 09:26:53,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:26:53" (1/1) ... [2024-10-14 09:26:53,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4597a72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:53, skipping insertion in model container [2024-10-14 09:26:53,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:26:53" (1/1) ... [2024-10-14 09:26:53,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 09:26:54,114 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-pe-co_file-47.i[919,932] [2024-10-14 09:26:54,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:26:54,216 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 09:26:54,228 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-pe-co_file-47.i[919,932] [2024-10-14 09:26:54,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:26:54,287 INFO L204 MainTranslator]: Completed translation [2024-10-14 09:26:54,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54 WrapperNode [2024-10-14 09:26:54,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 09:26:54,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 09:26:54,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 09:26:54,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 09:26:54,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,356 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 307 [2024-10-14 09:26:54,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 09:26:54,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 09:26:54,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 09:26:54,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 09:26:54,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,400 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]. [2024-10-14 09:26:54,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 09:26:54,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 09:26:54,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 09:26:54,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 09:26:54,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (1/1) ... [2024-10-14 09:26:54,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:26:54,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:26:54,487 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) [2024-10-14 09:26:54,489 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 [2024-10-14 09:26:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 09:26:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 09:26:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 09:26:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 09:26:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 09:26:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 09:26:54,597 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 09:26:54,599 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 09:26:54,976 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-14 09:26:54,977 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 09:26:55,005 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 09:26:55,005 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 09:26:55,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:26:55 BoogieIcfgContainer [2024-10-14 09:26:55,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 09:26:55,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 09:26:55,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 09:26:55,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 09:26:55,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:26:53" (1/3) ... [2024-10-14 09:26:55,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a275d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:26:55, skipping insertion in model container [2024-10-14 09:26:55,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:26:54" (2/3) ... [2024-10-14 09:26:55,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a275d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:26:55, skipping insertion in model container [2024-10-14 09:26:55,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:26:55" (3/3) ... [2024-10-14 09:26:55,013 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i [2024-10-14 09:26:55,026 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 09:26:55,026 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 09:26:55,087 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 09:26:55,094 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;@3a6b13fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 09:26:55,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 09:26:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 87 states have (on average 1.5517241379310345) internal successors, (135), 88 states have internal predecessors, (135), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 09:26:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-10-14 09:26:55,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:26:55,115 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:26:55,115 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:26:55,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:26:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash 419578584, now seen corresponding path program 1 times [2024-10-14 09:26:55,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:26:55,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609452561] [2024-10-14 09:26:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:26:55,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:26:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:26:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:26:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:26:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:26:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:26:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:26:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:26:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:26:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:26:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:26:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:26:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:26:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:26:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:26:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:26:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:26:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:26:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:26:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:26:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:26:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:26:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:26:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:26:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:26:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:26:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:26:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:26:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:26:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:26:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:26:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:26:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:26:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:26:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:26:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:26:55,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:26:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609452561] [2024-10-14 09:26:55,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609452561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:26:55,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:26:55,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 09:26:55,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590446247] [2024-10-14 09:26:55,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:26:55,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 09:26:55,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:26:55,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 09:26:55,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:26:55,622 INFO L87 Difference]: Start difference. First operand has 124 states, 87 states have (on average 1.5517241379310345) internal successors, (135), 88 states have internal predecessors, (135), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:26:55,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:26:55,664 INFO L93 Difference]: Finished difference Result 245 states and 438 transitions. [2024-10-14 09:26:55,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 09:26:55,670 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 217 [2024-10-14 09:26:55,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:26:55,676 INFO L225 Difference]: With dead ends: 245 [2024-10-14 09:26:55,676 INFO L226 Difference]: Without dead ends: 122 [2024-10-14 09:26:55,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:26:55,681 INFO L432 NwaCegarLoop]: 191 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, 191 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 [2024-10-14 09:26:55,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:26:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-14 09:26:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-14 09:26:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 86 states have internal predecessors, (126), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 09:26:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 194 transitions. [2024-10-14 09:26:55,733 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 194 transitions. Word has length 217 [2024-10-14 09:26:55,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:26:55,733 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 194 transitions. [2024-10-14 09:26:55,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:26:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 194 transitions. [2024-10-14 09:26:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-10-14 09:26:55,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:26:55,739 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:26:55,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 09:26:55,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:26:55,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:26:55,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1732086492, now seen corresponding path program 1 times [2024-10-14 09:26:55,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:26:55,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969759275] [2024-10-14 09:26:55,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:26:55,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:26:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:26:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:26:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:26:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:26:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:26:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:26:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:26:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:26:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:26:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:26:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:26:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:26:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:26:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:26:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:26:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:26:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:26:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:26:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:26:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:26:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:26:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:26:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:26:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:26:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:26:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:26:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:26:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:26:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:26:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:26:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:26:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:26:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:26:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:26:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:26:56,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:26:56,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969759275] [2024-10-14 09:26:56,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969759275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:26:56,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:26:56,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 09:26:56,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089883515] [2024-10-14 09:26:56,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:26:56,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 09:26:56,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:26:56,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 09:26:56,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:26:56,494 INFO L87 Difference]: Start difference. First operand 122 states and 194 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:26:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:26:56,842 INFO L93 Difference]: Finished difference Result 537 states and 854 transitions. [2024-10-14 09:26:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 09:26:56,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-10-14 09:26:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:26:56,849 INFO L225 Difference]: With dead ends: 537 [2024-10-14 09:26:56,850 INFO L226 Difference]: Without dead ends: 416 [2024-10-14 09:26:56,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 09:26:56,853 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 462 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 09:26:56,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 817 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 09:26:56,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-10-14 09:26:56,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 267. [2024-10-14 09:26:56,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 196 states have (on average 1.4591836734693877) internal successors, (286), 196 states have internal predecessors, (286), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 09:26:56,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 422 transitions. [2024-10-14 09:26:56,892 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 422 transitions. Word has length 218 [2024-10-14 09:26:56,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:26:56,893 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 422 transitions. [2024-10-14 09:26:56,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:26:56,893 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 422 transitions. [2024-10-14 09:26:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-10-14 09:26:56,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:26:56,899 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:26:56,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 09:26:56,899 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:26:56,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:26:56,900 INFO L85 PathProgramCache]: Analyzing trace with hash 191141542, now seen corresponding path program 1 times [2024-10-14 09:26:56,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:26:56,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39439341] [2024-10-14 09:26:56,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:26:56,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:26:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:26:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:26:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:26:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:26:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:26:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:26:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:26:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:26:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:26:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:26:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:26:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:26:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:26:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:26:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:26:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:26:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:26:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:26:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:26:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:26:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:26:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:26:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:26:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:26:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:26:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:26:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:26:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:26:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:26:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:26:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:26:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:26:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:26:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:26:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:26:57,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:26:57,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39439341] [2024-10-14 09:26:57,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39439341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:26:57,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:26:57,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:26:57,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622381555] [2024-10-14 09:26:57,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:26:57,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:26:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:26:57,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:26:57,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:26:57,462 INFO L87 Difference]: Start difference. First operand 267 states and 422 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:26:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:26:57,687 INFO L93 Difference]: Finished difference Result 510 states and 803 transitions. [2024-10-14 09:26:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:26:57,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-10-14 09:26:57,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:26:57,690 INFO L225 Difference]: With dead ends: 510 [2024-10-14 09:26:57,690 INFO L226 Difference]: Without dead ends: 244 [2024-10-14 09:26:57,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:26:57,692 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 128 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:26:57,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 520 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 09:26:57,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-14 09:26:57,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 207. [2024-10-14 09:26:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 136 states have (on average 1.3823529411764706) internal successors, (188), 136 states have internal predecessors, (188), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 09:26:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 324 transitions. [2024-10-14 09:26:57,728 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 324 transitions. Word has length 218 [2024-10-14 09:26:57,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:26:57,728 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 324 transitions. [2024-10-14 09:26:57,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:26:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 324 transitions. [2024-10-14 09:26:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-10-14 09:26:57,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:26:57,730 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:26:57,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 09:26:57,730 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:26:57,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:26:57,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1985320193, now seen corresponding path program 1 times [2024-10-14 09:26:57,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:26:57,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484555856] [2024-10-14 09:26:57,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:26:57,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:26:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:26:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:26:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:26:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:26:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:26:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:26:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:26:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:26:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:26:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:26:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:26:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:26:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:26:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:26:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:26:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:26:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:26:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:26:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:26:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:26:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:26:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:26:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:26:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:26:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:26:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:26:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:26:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:26:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:26:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:26:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:26:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:26:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:26:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:26:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:26:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:26:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:26:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484555856] [2024-10-14 09:26:58,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484555856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:26:58,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:26:58,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 09:26:58,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314916849] [2024-10-14 09:26:58,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:26:58,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 09:26:58,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:26:58,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 09:26:58,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-14 09:26:58,638 INFO L87 Difference]: Start difference. First operand 207 states and 324 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-10-14 09:27:00,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:27:00,078 INFO L93 Difference]: Finished difference Result 790 states and 1230 transitions. [2024-10-14 09:27:00,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 09:27:00,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 220 [2024-10-14 09:27:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:27:00,083 INFO L225 Difference]: With dead ends: 790 [2024-10-14 09:27:00,083 INFO L226 Difference]: Without dead ends: 651 [2024-10-14 09:27:00,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-10-14 09:27:00,084 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1082 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:27:00,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 1056 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 09:27:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-10-14 09:27:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 571. [2024-10-14 09:27:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 438 states have (on average 1.452054794520548) internal successors, (636), 440 states have internal predecessors, (636), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 124 states have call predecessors, (126), 126 states have call successors, (126) [2024-10-14 09:27:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 888 transitions. [2024-10-14 09:27:00,135 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 888 transitions. Word has length 220 [2024-10-14 09:27:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:27:00,135 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 888 transitions. [2024-10-14 09:27:00,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-10-14 09:27:00,136 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 888 transitions. [2024-10-14 09:27:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-10-14 09:27:00,137 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:27:00,138 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:27:00,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 09:27:00,138 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:27:00,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:27:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash -305137857, now seen corresponding path program 1 times [2024-10-14 09:27:00,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:27:00,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432279319] [2024-10-14 09:27:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:00,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:27:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:27:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:27:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:27:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:27:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:27:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:27:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:27:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:27:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:27:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:27:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:27:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:27:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:27:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:27:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:27:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:27:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:27:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:27:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:27:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:27:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:27:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:27:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:27:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:27:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:27:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:27:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:27:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:27:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:27:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:27:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:27:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:27:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:27:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:27:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:27:00,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:27:00,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432279319] [2024-10-14 09:27:00,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432279319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:27:00,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:27:00,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 09:27:00,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392967217] [2024-10-14 09:27:00,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:27:00,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 09:27:00,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:27:00,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 09:27:00,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:27:00,529 INFO L87 Difference]: Start difference. First operand 571 states and 888 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:00,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:27:00,996 INFO L93 Difference]: Finished difference Result 1053 states and 1644 transitions. [2024-10-14 09:27:00,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 09:27:00,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 220 [2024-10-14 09:27:00,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:27:01,001 INFO L225 Difference]: With dead ends: 1053 [2024-10-14 09:27:01,002 INFO L226 Difference]: Without dead ends: 608 [2024-10-14 09:27:01,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 09:27:01,006 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 252 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 09:27:01,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 709 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 09:27:01,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-10-14 09:27:01,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 596. [2024-10-14 09:27:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 430 states have (on average 1.3534883720930233) internal successors, (582), 432 states have internal predecessors, (582), 158 states have call successors, (158), 7 states have call predecessors, (158), 7 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-10-14 09:27:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 898 transitions. [2024-10-14 09:27:01,068 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 898 transitions. Word has length 220 [2024-10-14 09:27:01,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:27:01,068 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 898 transitions. [2024-10-14 09:27:01,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:01,069 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 898 transitions. [2024-10-14 09:27:01,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-10-14 09:27:01,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:27:01,070 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:27:01,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 09:27:01,071 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:27:01,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:27:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1014419322, now seen corresponding path program 1 times [2024-10-14 09:27:01,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:27:01,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118437119] [2024-10-14 09:27:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:01,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:27:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:27:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:27:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:27:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:27:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:27:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:27:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:27:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:27:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:27:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:27:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:27:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:27:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:27:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:27:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:27:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:27:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:27:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:27:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:27:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:27:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:27:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:27:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:27:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:27:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:27:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:27:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:27:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:27:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:27:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:27:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:27:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:27:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:27:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:27:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 57 proven. 42 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2024-10-14 09:27:02,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:27:02,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118437119] [2024-10-14 09:27:02,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118437119] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 09:27:02,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23118545] [2024-10-14 09:27:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:02,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:27:02,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:27:02,330 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:27:02,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 09:27:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:02,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 09:27:02,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 09:27:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1245 proven. 246 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2024-10-14 09:27:04,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 09:27:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 114 proven. 174 refuted. 0 times theorem prover too weak. 1956 trivial. 0 not checked. [2024-10-14 09:27:05,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23118545] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 09:27:05,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 09:27:05,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 12] total 37 [2024-10-14 09:27:05,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646011383] [2024-10-14 09:27:05,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 09:27:05,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-14 09:27:05,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:27:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-14 09:27:05,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 09:27:05,561 INFO L87 Difference]: Start difference. First operand 596 states and 898 transitions. Second operand has 37 states, 36 states have (on average 4.527777777777778) internal successors, (163), 34 states have internal predecessors, (163), 12 states have call successors, (102), 6 states have call predecessors, (102), 12 states have return successors, (102), 12 states have call predecessors, (102), 12 states have call successors, (102) [2024-10-14 09:27:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:27:50,750 INFO L93 Difference]: Finished difference Result 1828 states and 2671 transitions. [2024-10-14 09:27:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-10-14 09:27:50,752 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.527777777777778) internal successors, (163), 34 states have internal predecessors, (163), 12 states have call successors, (102), 6 states have call predecessors, (102), 12 states have return successors, (102), 12 states have call predecessors, (102), 12 states have call successors, (102) Word has length 221 [2024-10-14 09:27:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:27:50,757 INFO L225 Difference]: With dead ends: 1828 [2024-10-14 09:27:50,757 INFO L226 Difference]: Without dead ends: 1358 [2024-10-14 09:27:50,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8774 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=4724, Invalid=20398, Unknown=0, NotChecked=0, Total=25122 [2024-10-14 09:27:50,766 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 2105 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 6843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:27:50,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 3718 Invalid, 6843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 6001 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-10-14 09:27:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2024-10-14 09:27:50,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 971. [2024-10-14 09:27:50,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 781 states have (on average 1.3674775928297056) internal successors, (1068), 784 states have internal predecessors, (1068), 160 states have call successors, (160), 29 states have call predecessors, (160), 29 states have return successors, (160), 157 states have call predecessors, (160), 160 states have call successors, (160) [2024-10-14 09:27:50,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1388 transitions. [2024-10-14 09:27:50,867 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1388 transitions. Word has length 221 [2024-10-14 09:27:50,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:27:50,868 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1388 transitions. [2024-10-14 09:27:50,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.527777777777778) internal successors, (163), 34 states have internal predecessors, (163), 12 states have call successors, (102), 6 states have call predecessors, (102), 12 states have return successors, (102), 12 states have call predecessors, (102), 12 states have call successors, (102) [2024-10-14 09:27:50,868 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1388 transitions. [2024-10-14 09:27:50,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-10-14 09:27:50,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:27:50,871 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:27:50,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 09:27:51,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 09:27:51,076 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:27:51,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:27:51,077 INFO L85 PathProgramCache]: Analyzing trace with hash 532247649, now seen corresponding path program 1 times [2024-10-14 09:27:51,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:27:51,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586708325] [2024-10-14 09:27:51,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:51,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:27:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:27:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:27:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:27:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:27:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:27:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:27:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:27:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:27:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:27:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:27:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:27:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:27:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:27:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:27:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:27:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:27:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:27:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:27:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:27:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:27:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:27:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:27:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:27:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:27:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:27:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:27:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:27:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:27:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:27:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:27:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:27:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:27:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:27:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:27:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:27:51,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:27:51,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586708325] [2024-10-14 09:27:51,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586708325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:27:51,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:27:51,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:27:51,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010702499] [2024-10-14 09:27:51,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:27:51,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:27:51,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:27:51,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:27:51,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:27:51,288 INFO L87 Difference]: Start difference. First operand 971 states and 1388 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:27:51,608 INFO L93 Difference]: Finished difference Result 1572 states and 2271 transitions. [2024-10-14 09:27:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 09:27:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 221 [2024-10-14 09:27:51,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:27:51,615 INFO L225 Difference]: With dead ends: 1572 [2024-10-14 09:27:51,615 INFO L226 Difference]: Without dead ends: 1287 [2024-10-14 09:27:51,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:27:51,616 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 172 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:27:51,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 639 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 09:27:51,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2024-10-14 09:27:51,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1034. [2024-10-14 09:27:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 844 states have (on average 1.3578199052132702) internal successors, (1146), 847 states have internal predecessors, (1146), 160 states have call successors, (160), 29 states have call predecessors, (160), 29 states have return successors, (160), 157 states have call predecessors, (160), 160 states have call successors, (160) [2024-10-14 09:27:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1466 transitions. [2024-10-14 09:27:51,700 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1466 transitions. Word has length 221 [2024-10-14 09:27:51,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:27:51,701 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1466 transitions. [2024-10-14 09:27:51,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:51,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1466 transitions. [2024-10-14 09:27:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-10-14 09:27:51,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:27:51,704 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:27:51,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 09:27:51,704 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:27:51,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:27:51,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1853540958, now seen corresponding path program 1 times [2024-10-14 09:27:51,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:27:51,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355646684] [2024-10-14 09:27:51,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:51,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:27:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:27:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:27:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:27:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:27:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:27:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:27:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:27:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:27:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:27:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:27:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:27:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:27:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:27:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:27:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:27:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:27:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:27:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:27:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:27:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:27:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:27:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:27:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:27:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:27:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:27:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:27:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:27:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:27:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:27:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:27:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:27:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:27:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:27:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:27:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:27:52,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:27:52,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355646684] [2024-10-14 09:27:52,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355646684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:27:52,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:27:52,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 09:27:52,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110176644] [2024-10-14 09:27:52,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:27:52,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 09:27:52,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:27:52,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 09:27:52,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 09:27:52,370 INFO L87 Difference]: Start difference. First operand 1034 states and 1466 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:27:54,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:27:54,221 INFO L93 Difference]: Finished difference Result 2255 states and 3199 transitions. [2024-10-14 09:27:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 09:27:54,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 222 [2024-10-14 09:27:54,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:27:54,229 INFO L225 Difference]: With dead ends: 2255 [2024-10-14 09:27:54,229 INFO L226 Difference]: Without dead ends: 1424 [2024-10-14 09:27:54,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-14 09:27:54,232 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 694 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 09:27:54,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1033 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 09:27:54,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2024-10-14 09:27:54,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1074. [2024-10-14 09:27:54,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 884 states have (on average 1.3687782805429864) internal successors, (1210), 887 states have internal predecessors, (1210), 160 states have call successors, (160), 29 states have call predecessors, (160), 29 states have return successors, (160), 157 states have call predecessors, (160), 160 states have call successors, (160) [2024-10-14 09:27:54,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1530 transitions. [2024-10-14 09:27:54,322 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1530 transitions. Word has length 222 [2024-10-14 09:27:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:27:54,323 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1530 transitions. [2024-10-14 09:27:54,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-14 09:27:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1530 transitions. [2024-10-14 09:27:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-10-14 09:27:54,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:27:54,325 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:27:54,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 09:27:54,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:27:54,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:27:54,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1161562660, now seen corresponding path program 1 times [2024-10-14 09:27:54,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:27:54,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698217109] [2024-10-14 09:27:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:54,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:27:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:27:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:27:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:27:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:27:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:27:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:27:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:27:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:27:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:27:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:27:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:27:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:27:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:27:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:27:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:27:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:27:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:27:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:27:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:27:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:27:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:27:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:27:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:27:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:27:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:27:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:27:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:27:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:27:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:27:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:27:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:27:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:27:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:27:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:27:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:27:54,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:27:54,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698217109] [2024-10-14 09:27:54,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698217109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:27:54,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:27:54,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 09:27:54,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505683200] [2024-10-14 09:27:54,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:27:54,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 09:27:54,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:27:54,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 09:27:54,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 09:27:54,907 INFO L87 Difference]: Start difference. First operand 1074 states and 1530 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:27:56,051 INFO L93 Difference]: Finished difference Result 2615 states and 3726 transitions. [2024-10-14 09:27:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 09:27:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 222 [2024-10-14 09:27:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:27:56,059 INFO L225 Difference]: With dead ends: 2615 [2024-10-14 09:27:56,059 INFO L226 Difference]: Without dead ends: 1752 [2024-10-14 09:27:56,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-14 09:27:56,062 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 279 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 09:27:56,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 868 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 09:27:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2024-10-14 09:27:56,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1592. [2024-10-14 09:27:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1293 states have (on average 1.3588553750966743) internal successors, (1757), 1298 states have internal predecessors, (1757), 250 states have call successors, (250), 48 states have call predecessors, (250), 48 states have return successors, (250), 245 states have call predecessors, (250), 250 states have call successors, (250) [2024-10-14 09:27:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2257 transitions. [2024-10-14 09:27:56,216 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2257 transitions. Word has length 222 [2024-10-14 09:27:56,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:27:56,217 INFO L471 AbstractCegarLoop]: Abstraction has 1592 states and 2257 transitions. [2024-10-14 09:27:56,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2257 transitions. [2024-10-14 09:27:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-14 09:27:56,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:27:56,219 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:27:56,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 09:27:56,219 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:27:56,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:27:56,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1167471269, now seen corresponding path program 1 times [2024-10-14 09:27:56,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:27:56,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833867107] [2024-10-14 09:27:56,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:56,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:27:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:27:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:27:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:27:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:27:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:27:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:27:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:27:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:27:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:27:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:27:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:27:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:27:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:27:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:27:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:27:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:27:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:27:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:27:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:27:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:27:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:27:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:27:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:27:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:27:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:27:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:27:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:27:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:27:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:27:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:27:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:27:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:27:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:27:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:27:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 09:27:56,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:27:56,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833867107] [2024-10-14 09:27:56,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833867107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:27:56,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:27:56,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 09:27:56,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499290355] [2024-10-14 09:27:56,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:27:56,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 09:27:56,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:27:56,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 09:27:56,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 09:27:56,512 INFO L87 Difference]: Start difference. First operand 1592 states and 2257 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:57,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:27:57,387 INFO L93 Difference]: Finished difference Result 3195 states and 4593 transitions. [2024-10-14 09:27:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 09:27:57,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 223 [2024-10-14 09:27:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:27:57,396 INFO L225 Difference]: With dead ends: 3195 [2024-10-14 09:27:57,396 INFO L226 Difference]: Without dead ends: 2332 [2024-10-14 09:27:57,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 09:27:57,398 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 338 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 09:27:57,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 764 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 09:27:57,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states. [2024-10-14 09:27:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 1818. [2024-10-14 09:27:57,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1481 states have (on average 1.37542201215395) internal successors, (2037), 1487 states have internal predecessors, (2037), 284 states have call successors, (284), 52 states have call predecessors, (284), 52 states have return successors, (284), 278 states have call predecessors, (284), 284 states have call successors, (284) [2024-10-14 09:27:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2605 transitions. [2024-10-14 09:27:57,598 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2605 transitions. Word has length 223 [2024-10-14 09:27:57,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:27:57,601 INFO L471 AbstractCegarLoop]: Abstraction has 1818 states and 2605 transitions. [2024-10-14 09:27:57,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-14 09:27:57,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2605 transitions. [2024-10-14 09:27:57,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-14 09:27:57,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:27:57,604 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:27:57,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 09:27:57,604 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:27:57,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:27:57,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1847632349, now seen corresponding path program 1 times [2024-10-14 09:27:57,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:27:57,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555698071] [2024-10-14 09:27:57,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:57,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:27:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:27:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:27:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:27:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:27:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:27:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:27:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:27:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:27:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:27:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:27:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:27:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:27:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 09:27:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 09:27:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 09:27:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 09:27:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 09:27:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 09:27:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 09:27:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 09:27:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 09:27:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 09:27:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 09:27:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 09:27:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 09:27:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 09:27:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 09:27:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 09:27:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 09:27:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 09:27:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 09:27:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 09:27:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 09:27:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 09:27:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2024-10-14 09:27:58,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:27:58,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555698071] [2024-10-14 09:27:58,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555698071] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 09:27:58,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678079066] [2024-10-14 09:27:58,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:27:58,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:27:58,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:27:58,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:27:58,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 09:27:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:27:58,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-14 09:27:58,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 09:28:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1245 proven. 246 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2024-10-14 09:28:02,164 INFO L311 TraceCheckSpWp]: Computing backward predicates...