./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-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-56.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 74c69109f1168b2451565c694ece1ff9e7d9f6a05c2f06eb4663232b493b2588 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:18:36,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:18:36,300 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:18:36,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:18:36,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:18:36,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:18:36,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:18:36,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:18:36,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:18:36,343 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:18:36,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:18:36,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:18:36,344 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:18:36,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:18:36,346 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:18:36,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:18:36,346 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:18:36,347 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:18:36,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:18:36,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:18:36,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:18:36,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:18:36,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:18:36,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:18:36,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:18:36,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:18:36,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:18:36,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:18:36,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:18:36,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:18:36,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:18:36,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:18:36,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:18:36,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:18:36,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:18:36,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:18:36,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:18:36,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:18:36,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:18:36,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:18:36,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:18:36,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:18:36,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74c69109f1168b2451565c694ece1ff9e7d9f6a05c2f06eb4663232b493b2588 [2024-10-24 07:18:36,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:18:36,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:18:36,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:18:36,620 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:18:36,620 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:18:36,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-56.i [2024-10-24 07:18:38,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:18:38,250 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:18:38,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-56.i [2024-10-24 07:18:38,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df9244b5c/33b456e9e78f44d3be6f5f904ef3ec98/FLAG4c8ada635 [2024-10-24 07:18:38,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df9244b5c/33b456e9e78f44d3be6f5f904ef3ec98 [2024-10-24 07:18:38,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:18:38,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:18:38,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:18:38,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:18:38,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:18:38,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:18:38" (1/1) ... [2024-10-24 07:18:38,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b3d460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:38, skipping insertion in model container [2024-10-24 07:18:38,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:18:38" (1/1) ... [2024-10-24 07:18:38,624 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:18:38,795 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-56.i[919,932] [2024-10-24 07:18:38,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:18:38,905 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:18:38,915 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-56.i[919,932] [2024-10-24 07:18:38,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:18:39,006 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:18:39,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39 WrapperNode [2024-10-24 07:18:39,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:18:39,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:18:39,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:18:39,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:18:39,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,092 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 219 [2024-10-24 07:18:39,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:18:39,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:18:39,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:18:39,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:18:39,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,176 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 07:18:39,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:18:39,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:18:39,214 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:18:39,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:18:39,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (1/1) ... [2024-10-24 07:18:39,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:18:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:18:39,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 07:18:39,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 07:18:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:18:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:18:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:18:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:18:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:18:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:18:39,399 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:18:39,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:18:39,930 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 07:18:39,930 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:18:39,982 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:18:39,983 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:18:39,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:18:39 BoogieIcfgContainer [2024-10-24 07:18:39,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:18:39,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:18:39,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:18:39,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:18:39,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:18:38" (1/3) ... [2024-10-24 07:18:39,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d6063b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:18:39, skipping insertion in model container [2024-10-24 07:18:39,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:39" (2/3) ... [2024-10-24 07:18:39,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d6063b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:18:39, skipping insertion in model container [2024-10-24 07:18:39,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:18:39" (3/3) ... [2024-10-24 07:18:39,995 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-56.i [2024-10-24 07:18:40,012 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:18:40,012 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:18:40,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:18:40,090 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;@6988fa0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:18:40,090 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:18:40,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 54 states have internal predecessors, (77), 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) [2024-10-24 07:18:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-24 07:18:40,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:18:40,113 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] [2024-10-24 07:18:40,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:18:40,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:18:40,120 INFO L85 PathProgramCache]: Analyzing trace with hash 947221612, now seen corresponding path program 1 times [2024-10-24 07:18:40,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:18:40,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808763299] [2024-10-24 07:18:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:18:40,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:18:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:18:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:18:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:18:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:18:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:18:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:18:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:18:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:18:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:18:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:18:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:18:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:18:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:18:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:18:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:18:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:18:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:18:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:18:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:18:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:18:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:18:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:18:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:18:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:18:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:18:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:18:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 07:18:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 07:18:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 07:18:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 07:18:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 07:18:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-24 07:18:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 07:18:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 07:18:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:18:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:18:40,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808763299] [2024-10-24 07:18:40,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808763299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:18:40,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:18:40,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:18:40,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113698364] [2024-10-24 07:18:40,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:18:40,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:18:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:18:40,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:18:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:18:40,744 INFO L87 Difference]: Start difference. First operand has 90 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 54 states have internal predecessors, (77), 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 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) [2024-10-24 07:18:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:18:40,805 INFO L93 Difference]: Finished difference Result 177 states and 322 transitions. [2024-10-24 07:18:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:18:40,812 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 210 [2024-10-24 07:18:40,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:18:40,834 INFO L225 Difference]: With dead ends: 177 [2024-10-24 07:18:40,835 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 07:18:40,841 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 [2024-10-24 07:18:40,845 INFO L432 NwaCegarLoop]: 137 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, 137 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:18:40,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:18:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 07:18:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-24 07:18:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 52 states have internal predecessors, (72), 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) [2024-10-24 07:18:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 140 transitions. [2024-10-24 07:18:40,915 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 140 transitions. Word has length 210 [2024-10-24 07:18:40,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:18:40,916 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 140 transitions. [2024-10-24 07:18:40,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) [2024-10-24 07:18:40,918 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 140 transitions. [2024-10-24 07:18:40,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-24 07:18:40,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:18:40,925 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] [2024-10-24 07:18:40,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:18:40,926 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:18:40,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:18:40,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1186145572, now seen corresponding path program 1 times [2024-10-24 07:18:40,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:18:40,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610347612] [2024-10-24 07:18:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:18:40,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:18:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:18:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:18:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:18:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:18:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:18:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:18:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:18:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:18:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:18:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:18:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:18:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:18:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:18:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:18:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:18:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:18:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:18:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:18:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:18:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:18:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:18:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:18:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:18:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:18:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:18:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:18:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 07:18:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 07:18:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 07:18:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 07:18:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 07:18:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-24 07:18:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 07:18:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 07:18:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:18:41,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:18:41,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610347612] [2024-10-24 07:18:41,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610347612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:18:41,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:18:41,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 07:18:41,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897528554] [2024-10-24 07:18:41,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:18:41,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 07:18:41,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:18:41,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 07:18:41,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:18:41,403 INFO L87 Difference]: Start difference. First operand 88 states and 140 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-10-24 07:18:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:18:41,484 INFO L93 Difference]: Finished difference Result 260 states and 414 transitions. [2024-10-24 07:18:41,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 07:18:41,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 210 [2024-10-24 07:18:41,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:18:41,489 INFO L225 Difference]: With dead ends: 260 [2024-10-24 07:18:41,490 INFO L226 Difference]: Without dead ends: 173 [2024-10-24 07:18:41,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:18:41,492 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 123 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:18:41,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 269 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:18:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-24 07:18:41,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 171. [2024-10-24 07:18:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 100 states have (on average 1.36) internal successors, (136), 100 states have internal predecessors, (136), 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) [2024-10-24 07:18:41,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 272 transitions. [2024-10-24 07:18:41,538 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 272 transitions. Word has length 210 [2024-10-24 07:18:41,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:18:41,540 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 272 transitions. [2024-10-24 07:18:41,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-10-24 07:18:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 272 transitions. [2024-10-24 07:18:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-24 07:18:41,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:18:41,545 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] [2024-10-24 07:18:41,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:18:41,545 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:18:41,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:18:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1520473822, now seen corresponding path program 1 times [2024-10-24 07:18:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:18:41,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005568825] [2024-10-24 07:18:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:18:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:18:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:18:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:18:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:18:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:18:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:18:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:18:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:18:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:18:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:18:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:18:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:18:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:18:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:18:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:18:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:18:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 07:18:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:18:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:18:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:18:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:18:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:18:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 07:18:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:18:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 07:18:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:18:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:18:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 07:18:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 07:18:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 07:18:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 07:18:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 07:18:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-24 07:18:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 07:18:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 07:18:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:18:42,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:18:42,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:18:42,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005568825] [2024-10-24 07:18:42,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005568825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:18:42,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:18:42,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:18:42,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107536111] [2024-10-24 07:18:42,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:18:42,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:18:42,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:18:42,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:18:42,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:18:42,716 INFO L87 Difference]: Start difference. First operand 171 states and 272 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (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) [2024-10-24 07:18:42,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:18:42,841 INFO L93 Difference]: Finished difference Result 421 states and 670 transitions. [2024-10-24 07:18:42,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:18:42,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (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 210 [2024-10-24 07:18:42,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:18:42,848 INFO L225 Difference]: With dead ends: 421 [2024-10-24 07:18:42,848 INFO L226 Difference]: Without dead ends: 235 [2024-10-24 07:18:42,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:18:42,854 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 89 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:18:42,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 588 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:18:42,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-24 07:18:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 208. [2024-10-24 07:18:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 132 states have (on average 1.393939393939394) internal successors, (184), 133 states have internal predecessors, (184), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-24 07:18:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 328 transitions. [2024-10-24 07:18:42,906 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 328 transitions. Word has length 210 [2024-10-24 07:18:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:18:42,907 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 328 transitions. [2024-10-24 07:18:42,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (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) [2024-10-24 07:18:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 328 transitions. [2024-10-24 07:18:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-24 07:18:42,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:18:42,926 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] [2024-10-24 07:18:42,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:18:42,926 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:18:42,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:18:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1763376224, now seen corresponding path program 1 times [2024-10-24 07:18:42,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:18:42,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429862620] [2024-10-24 07:18:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:18:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:18:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat