./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_variablewrapping_wrapper-sp_file-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-3.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 963153236bfee4fba7310de151468b7ab2713ef3b9442c5a0ed9bd52a1f2d263 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:05:57,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:05:57,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:05:57,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:05:57,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:05:57,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:05:57,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:05:57,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:05:57,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:05:57,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:05:57,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:05:57,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:05:57,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:05:57,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:05:57,580 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:05:57,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:05:57,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:05:57,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:05:57,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:05:57,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:05:57,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:05:57,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:05:57,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:05:57,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:05:57,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:05:57,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:05:57,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:05:57,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:05:57,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:05:57,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:05:57,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:05:57,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:05:57,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:05:57,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:05:57,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:05:57,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:05:57,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:05:57,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:05:57,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:05:57,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:05:57,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:05:57,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:05:57,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 963153236bfee4fba7310de151468b7ab2713ef3b9442c5a0ed9bd52a1f2d263 [2024-11-20 09:05:57,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:05:57,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:05:57,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:05:57,863 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:05:57,863 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:05:57,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-3.i [2024-11-20 09:05:59,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:05:59,566 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:05:59,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-3.i [2024-11-20 09:05:59,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a73e7cef5/8eb2d8400dae492780149d360659ccd0/FLAGa5c6eeef5 [2024-11-20 09:05:59,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a73e7cef5/8eb2d8400dae492780149d360659ccd0 [2024-11-20 09:05:59,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:05:59,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:05:59,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:05:59,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:05:59,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:05:59,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:05:59" (1/1) ... [2024-11-20 09:05:59,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f76545a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:05:59, skipping insertion in model container [2024-11-20 09:05:59,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:05:59" (1/1) ... [2024-11-20 09:05:59,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:05:59,818 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-3.i[916,929] [2024-11-20 09:05:59,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:05:59,907 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:05:59,918 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-3.i[916,929] [2024-11-20 09:05:59,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:06:00,010 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:06:00,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00 WrapperNode [2024-11-20 09:06:00,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:06:00,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:06:00,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:06:00,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:06:00,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,089 INFO L138 Inliner]: procedures = 30, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 641 [2024-11-20 09:06:00,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:06:00,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:06:00,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:06:00,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:06:00,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,118 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-20 09:06:00,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:06:00,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:06:00,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:06:00,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:06:00,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (1/1) ... [2024-11-20 09:06:00,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:06:00,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:06:00,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:06:00,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:06:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:06:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-20 09:06:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-20 09:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-20 09:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 09:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-20 09:06:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 09:06:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:06:00,269 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:06:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 09:06:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:06:00,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:06:00,441 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:06:00,443 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:06:01,150 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2024-11-20 09:06:01,150 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:06:01,168 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:06:01,169 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 09:06:01,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:06:01 BoogieIcfgContainer [2024-11-20 09:06:01,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:06:01,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:06:01,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:06:01,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:06:01,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:05:59" (1/3) ... [2024-11-20 09:06:01,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7ac783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:06:01, skipping insertion in model container [2024-11-20 09:06:01,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:00" (2/3) ... [2024-11-20 09:06:01,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7ac783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:06:01, skipping insertion in model container [2024-11-20 09:06:01,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:06:01" (3/3) ... [2024-11-20 09:06:01,179 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-3.i [2024-11-20 09:06:01,195 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:06:01,195 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:06:01,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:06:01,262 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;@18b7cf9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:06:01,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:06:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 09:06:01,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-20 09:06:01,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:01,280 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:01,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:01,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:01,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1212346061, now seen corresponding path program 1 times [2024-11-20 09:06:01,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:01,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052412202] [2024-11-20 09:06:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:01,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:02,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:02,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052412202] [2024-11-20 09:06:02,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052412202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:02,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:02,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:06:02,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336568938] [2024-11-20 09:06:02,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:02,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:06:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:02,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:06:02,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:06:02,235 INFO L87 Difference]: Start difference. First operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:02,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:02,316 INFO L93 Difference]: Finished difference Result 293 states and 457 transitions. [2024-11-20 09:06:02,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:06:02,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-11-20 09:06:02,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:02,363 INFO L225 Difference]: With dead ends: 293 [2024-11-20 09:06:02,363 INFO L226 Difference]: Without dead ends: 147 [2024-11-20 09:06:02,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:06:02,371 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:02,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:06:02,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-20 09:06:02,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-20 09:06:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.434108527131783) internal successors, (185), 129 states have internal predecessors, (185), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 09:06:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 217 transitions. [2024-11-20 09:06:02,421 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 217 transitions. Word has length 133 [2024-11-20 09:06:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:02,424 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 217 transitions. [2024-11-20 09:06:02,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2024-11-20 09:06:02,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 09:06:02,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:02,428 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:02,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:06:02,429 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:02,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:02,430 INFO L85 PathProgramCache]: Analyzing trace with hash -500527483, now seen corresponding path program 1 times [2024-11-20 09:06:02,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:02,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396203254] [2024-11-20 09:06:02,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:02,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:02,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:02,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396203254] [2024-11-20 09:06:02,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396203254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:02,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:02,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:06:02,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651040885] [2024-11-20 09:06:02,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:02,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:06:02,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:02,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:06:02,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:06:02,767 INFO L87 Difference]: Start difference. First operand 147 states and 217 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:02,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:02,832 INFO L93 Difference]: Finished difference Result 368 states and 546 transitions. [2024-11-20 09:06:02,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:06:02,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-20 09:06:02,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:02,836 INFO L225 Difference]: With dead ends: 368 [2024-11-20 09:06:02,836 INFO L226 Difference]: Without dead ends: 224 [2024-11-20 09:06:02,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:06:02,838 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 114 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:02,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 412 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:06:02,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-20 09:06:02,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 179. [2024-11-20 09:06:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 161 states have (on average 1.453416149068323) internal successors, (234), 161 states have internal predecessors, (234), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 09:06:02,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 266 transitions. [2024-11-20 09:06:02,854 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 266 transitions. Word has length 135 [2024-11-20 09:06:02,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:02,855 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 266 transitions. [2024-11-20 09:06:02,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:02,855 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 266 transitions. [2024-11-20 09:06:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 09:06:02,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:02,857 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:02,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:06:02,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:02,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:02,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1678409010, now seen corresponding path program 1 times [2024-11-20 09:06:02,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:02,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633419405] [2024-11-20 09:06:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:04,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:04,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633419405] [2024-11-20 09:06:04,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633419405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:04,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:04,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:06:04,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984646370] [2024-11-20 09:06:04,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:04,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:06:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:04,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:06:04,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:06:04,797 INFO L87 Difference]: Start difference. First operand 179 states and 266 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:05,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:05,064 INFO L93 Difference]: Finished difference Result 436 states and 650 transitions. [2024-11-20 09:06:05,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:06:05,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2024-11-20 09:06:05,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:05,073 INFO L225 Difference]: With dead ends: 436 [2024-11-20 09:06:05,073 INFO L226 Difference]: Without dead ends: 260 [2024-11-20 09:06:05,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:06:05,076 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 97 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:05,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 504 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:06:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-20 09:06:05,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 248. [2024-11-20 09:06:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 213 states have (on average 1.4178403755868545) internal successors, (302), 213 states have internal predecessors, (302), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 09:06:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 366 transitions. [2024-11-20 09:06:05,124 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 366 transitions. Word has length 135 [2024-11-20 09:06:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:05,125 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 366 transitions. [2024-11-20 09:06:05,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:05,128 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 366 transitions. [2024-11-20 09:06:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-20 09:06:05,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:05,134 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:05,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:06:05,135 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:05,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash 741335402, now seen corresponding path program 1 times [2024-11-20 09:06:05,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:05,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547943591] [2024-11-20 09:06:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:05,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-20 09:06:06,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:06,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547943591] [2024-11-20 09:06:06,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547943591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:06:06,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275820190] [2024-11-20 09:06:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:06,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:06:06,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:06:06,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:06:06,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:06:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:06,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-20 09:06:06,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:06:09,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-20 09:06:09,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:09,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:09,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:09,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-11-20 09:06:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:10,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:10,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:10,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2024-11-20 09:06:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:10,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:06:10,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275820190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:10,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:06:10,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2024-11-20 09:06:10,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349640820] [2024-11-20 09:06:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:10,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 09:06:10,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:10,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 09:06:10,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:06:10,302 INFO L87 Difference]: Start difference. First operand 248 states and 366 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:11,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:11,203 INFO L93 Difference]: Finished difference Result 524 states and 777 transitions. [2024-11-20 09:06:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:06:11,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-20 09:06:11,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:11,206 INFO L225 Difference]: With dead ends: 524 [2024-11-20 09:06:11,206 INFO L226 Difference]: Without dead ends: 348 [2024-11-20 09:06:11,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2024-11-20 09:06:11,208 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 313 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:11,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1476 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:06:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-20 09:06:11,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 306. [2024-11-20 09:06:11,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 271 states have (on average 1.4354243542435425) internal successors, (389), 271 states have internal predecessors, (389), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 09:06:11,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 453 transitions. [2024-11-20 09:06:11,241 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 453 transitions. Word has length 136 [2024-11-20 09:06:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:11,243 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 453 transitions. [2024-11-20 09:06:11,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 453 transitions. [2024-11-20 09:06:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 09:06:11,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:11,245 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:11,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 09:06:11,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:06:11,447 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:11,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:11,447 INFO L85 PathProgramCache]: Analyzing trace with hash -608558604, now seen corresponding path program 1 times [2024-11-20 09:06:11,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:11,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231495976] [2024-11-20 09:06:11,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:11,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:13,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:13,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231495976] [2024-11-20 09:06:13,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231495976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:13,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:13,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:06:13,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144121699] [2024-11-20 09:06:13,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:13,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:06:13,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:06:13,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:06:13,255 INFO L87 Difference]: Start difference. First operand 306 states and 453 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:13,555 INFO L93 Difference]: Finished difference Result 771 states and 1150 transitions. [2024-11-20 09:06:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:06:13,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-11-20 09:06:13,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:13,559 INFO L225 Difference]: With dead ends: 771 [2024-11-20 09:06:13,560 INFO L226 Difference]: Without dead ends: 537 [2024-11-20 09:06:13,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:06:13,562 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 163 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:13,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 819 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:06:13,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-20 09:06:13,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 472. [2024-11-20 09:06:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 420 states have (on average 1.4404761904761905) internal successors, (605), 420 states have internal predecessors, (605), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 09:06:13,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 701 transitions. [2024-11-20 09:06:13,603 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 701 transitions. Word has length 137 [2024-11-20 09:06:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:13,604 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 701 transitions. [2024-11-20 09:06:13,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 701 transitions. [2024-11-20 09:06:13,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 09:06:13,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:13,607 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:13,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:06:13,607 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:13,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1514344948, now seen corresponding path program 1 times [2024-11-20 09:06:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:13,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921564840] [2024-11-20 09:06:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:13,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:13,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:13,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921564840] [2024-11-20 09:06:13,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921564840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:13,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:13,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:06:13,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895512800] [2024-11-20 09:06:13,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:13,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:06:13,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:13,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:06:13,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:06:13,836 INFO L87 Difference]: Start difference. First operand 472 states and 701 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:13,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:13,889 INFO L93 Difference]: Finished difference Result 881 states and 1311 transitions. [2024-11-20 09:06:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:06:13,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-20 09:06:13,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:13,893 INFO L225 Difference]: With dead ends: 881 [2024-11-20 09:06:13,893 INFO L226 Difference]: Without dead ends: 481 [2024-11-20 09:06:13,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:06:13,895 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:13,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:06:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-20 09:06:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 475. [2024-11-20 09:06:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 423 states have (on average 1.4373522458628842) internal successors, (608), 423 states have internal predecessors, (608), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 09:06:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 704 transitions. [2024-11-20 09:06:13,928 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 704 transitions. Word has length 137 [2024-11-20 09:06:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:13,929 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 704 transitions. [2024-11-20 09:06:13,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 704 transitions. [2024-11-20 09:06:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 09:06:13,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:13,931 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:13,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:06:13,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:13,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:13,932 INFO L85 PathProgramCache]: Analyzing trace with hash -285582379, now seen corresponding path program 1 times [2024-11-20 09:06:13,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:13,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336958947] [2024-11-20 09:06:13,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:13,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:14,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:14,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336958947] [2024-11-20 09:06:14,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336958947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:14,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:14,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:06:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918545729] [2024-11-20 09:06:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:14,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:06:14,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:06:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:06:14,151 INFO L87 Difference]: Start difference. First operand 475 states and 704 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:14,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:14,193 INFO L93 Difference]: Finished difference Result 884 states and 1313 transitions. [2024-11-20 09:06:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:06:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-20 09:06:14,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:14,196 INFO L225 Difference]: With dead ends: 884 [2024-11-20 09:06:14,196 INFO L226 Difference]: Without dead ends: 481 [2024-11-20 09:06:14,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:06:14,197 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:14,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:06:14,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-20 09:06:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-11-20 09:06:14,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 429 states have (on average 1.4312354312354312) internal successors, (614), 429 states have internal predecessors, (614), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 09:06:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 710 transitions. [2024-11-20 09:06:14,223 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 710 transitions. Word has length 138 [2024-11-20 09:06:14,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:14,223 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 710 transitions. [2024-11-20 09:06:14,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 710 transitions. [2024-11-20 09:06:14,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 09:06:14,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:14,225 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:14,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:06:14,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:14,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash 903635364, now seen corresponding path program 1 times [2024-11-20 09:06:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:14,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629921357] [2024-11-20 09:06:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:15,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629921357] [2024-11-20 09:06:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629921357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:15,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:15,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:06:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735707053] [2024-11-20 09:06:15,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:15,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:06:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:15,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:06:15,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:06:15,059 INFO L87 Difference]: Start difference. First operand 481 states and 710 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:15,589 INFO L93 Difference]: Finished difference Result 930 states and 1372 transitions. [2024-11-20 09:06:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:06:15,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-20 09:06:15,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:15,593 INFO L225 Difference]: With dead ends: 930 [2024-11-20 09:06:15,593 INFO L226 Difference]: Without dead ends: 691 [2024-11-20 09:06:15,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:06:15,594 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 711 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:15,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 861 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:06:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-20 09:06:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 541. [2024-11-20 09:06:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 489 states have (on average 1.4396728016359919) internal successors, (704), 489 states have internal predecessors, (704), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 09:06:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 800 transitions. [2024-11-20 09:06:15,628 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 800 transitions. Word has length 138 [2024-11-20 09:06:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:15,628 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 800 transitions. [2024-11-20 09:06:15,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 800 transitions. [2024-11-20 09:06:15,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 09:06:15,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:15,630 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:15,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:06:15,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:15,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:15,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1188514192, now seen corresponding path program 1 times [2024-11-20 09:06:15,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:15,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562465695] [2024-11-20 09:06:15,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:15,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:16,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562465695] [2024-11-20 09:06:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562465695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:16,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:16,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:06:16,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550349448] [2024-11-20 09:06:16,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:16,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:06:16,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:06:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:06:16,395 INFO L87 Difference]: Start difference. First operand 541 states and 800 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:16,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:16,806 INFO L93 Difference]: Finished difference Result 990 states and 1461 transitions. [2024-11-20 09:06:16,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:06:16,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-20 09:06:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:16,810 INFO L225 Difference]: With dead ends: 990 [2024-11-20 09:06:16,810 INFO L226 Difference]: Without dead ends: 691 [2024-11-20 09:06:16,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:06:16,811 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 566 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:16,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 965 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 09:06:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-20 09:06:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 601. [2024-11-20 09:06:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 549 states have (on average 1.4462659380692167) internal successors, (794), 549 states have internal predecessors, (794), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 09:06:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 890 transitions. [2024-11-20 09:06:16,849 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 890 transitions. Word has length 138 [2024-11-20 09:06:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:16,850 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 890 transitions. [2024-11-20 09:06:16,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 890 transitions. [2024-11-20 09:06:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:16,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:16,852 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:16,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 09:06:16,852 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:16,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:16,852 INFO L85 PathProgramCache]: Analyzing trace with hash 735618990, now seen corresponding path program 1 times [2024-11-20 09:06:16,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:16,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322353390] [2024-11-20 09:06:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:16,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:19,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:19,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322353390] [2024-11-20 09:06:19,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322353390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:19,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:19,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 09:06:19,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990180573] [2024-11-20 09:06:19,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:19,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 09:06:19,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:19,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 09:06:19,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:06:19,759 INFO L87 Difference]: Start difference. First operand 601 states and 890 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:21,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:21,400 INFO L93 Difference]: Finished difference Result 1400 states and 2071 transitions. [2024-11-20 09:06:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:06:21,401 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-20 09:06:21,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:21,405 INFO L225 Difference]: With dead ends: 1400 [2024-11-20 09:06:21,405 INFO L226 Difference]: Without dead ends: 871 [2024-11-20 09:06:21,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-20 09:06:21,407 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 552 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:21,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 2017 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 09:06:21,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-20 09:06:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 782. [2024-11-20 09:06:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 730 states have (on average 1.4547945205479451) internal successors, (1062), 730 states have internal predecessors, (1062), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 09:06:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1158 transitions. [2024-11-20 09:06:21,457 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1158 transitions. Word has length 139 [2024-11-20 09:06:21,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:21,459 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1158 transitions. [2024-11-20 09:06:21,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1158 transitions. [2024-11-20 09:06:21,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:21,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:21,462 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:21,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 09:06:21,463 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:21,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:21,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1436683568, now seen corresponding path program 1 times [2024-11-20 09:06:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:21,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621552891] [2024-11-20 09:06:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:21,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:22,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:22,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621552891] [2024-11-20 09:06:22,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621552891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:22,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:22,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:06:22,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114339938] [2024-11-20 09:06:22,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:22,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:06:22,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:06:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:06:22,470 INFO L87 Difference]: Start difference. First operand 782 states and 1158 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:23,027 INFO L93 Difference]: Finished difference Result 1622 states and 2391 transitions. [2024-11-20 09:06:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:06:23,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-20 09:06:23,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:23,041 INFO L225 Difference]: With dead ends: 1622 [2024-11-20 09:06:23,041 INFO L226 Difference]: Without dead ends: 912 [2024-11-20 09:06:23,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:06:23,046 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 545 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:23,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 663 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:06:23,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-20 09:06:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 908. [2024-11-20 09:06:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 837 states have (on average 1.4372759856630823) internal successors, (1203), 839 states have internal predecessors, (1203), 64 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-20 09:06:23,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1331 transitions. [2024-11-20 09:06:23,113 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1331 transitions. Word has length 139 [2024-11-20 09:06:23,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:23,114 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1331 transitions. [2024-11-20 09:06:23,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1331 transitions. [2024-11-20 09:06:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:23,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:23,116 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:23,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 09:06:23,116 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:23,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:23,117 INFO L85 PathProgramCache]: Analyzing trace with hash -82029460, now seen corresponding path program 1 times [2024-11-20 09:06:23,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:23,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475131000] [2024-11-20 09:06:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:23,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:23,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:23,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475131000] [2024-11-20 09:06:23,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475131000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:23,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:23,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:06:23,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517020710] [2024-11-20 09:06:23,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:23,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:06:23,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:23,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:06:23,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:06:23,986 INFO L87 Difference]: Start difference. First operand 908 states and 1331 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:24,676 INFO L93 Difference]: Finished difference Result 1924 states and 2819 transitions. [2024-11-20 09:06:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:06:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-20 09:06:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:24,684 INFO L225 Difference]: With dead ends: 1924 [2024-11-20 09:06:24,685 INFO L226 Difference]: Without dead ends: 1092 [2024-11-20 09:06:24,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:06:24,689 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 290 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:24,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 967 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:06:24,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-20 09:06:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 969. [2024-11-20 09:06:24,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 898 states have (on average 1.4387527839643652) internal successors, (1292), 900 states have internal predecessors, (1292), 64 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-20 09:06:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1420 transitions. [2024-11-20 09:06:24,766 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1420 transitions. Word has length 139 [2024-11-20 09:06:24,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:24,767 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1420 transitions. [2024-11-20 09:06:24,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1420 transitions. [2024-11-20 09:06:24,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:24,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:24,769 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:24,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 09:06:24,770 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:24,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:24,770 INFO L85 PathProgramCache]: Analyzing trace with hash 619035118, now seen corresponding path program 1 times [2024-11-20 09:06:24,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:24,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185287844] [2024-11-20 09:06:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:24,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:27,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:27,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185287844] [2024-11-20 09:06:27,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185287844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:27,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:27,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 09:06:27,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174588079] [2024-11-20 09:06:27,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:27,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 09:06:27,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:27,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 09:06:27,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:06:27,650 INFO L87 Difference]: Start difference. First operand 969 states and 1420 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:29,096 INFO L93 Difference]: Finished difference Result 1950 states and 2859 transitions. [2024-11-20 09:06:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:06:29,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-20 09:06:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:29,101 INFO L225 Difference]: With dead ends: 1950 [2024-11-20 09:06:29,101 INFO L226 Difference]: Without dead ends: 1057 [2024-11-20 09:06:29,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-20 09:06:29,103 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 422 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:29,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 2196 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 09:06:29,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-11-20 09:06:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 966. [2024-11-20 09:06:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 895 states have (on average 1.440223463687151) internal successors, (1289), 897 states have internal predecessors, (1289), 64 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-20 09:06:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1417 transitions. [2024-11-20 09:06:29,170 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1417 transitions. Word has length 139 [2024-11-20 09:06:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:29,170 INFO L471 AbstractCegarLoop]: Abstraction has 966 states and 1417 transitions. [2024-11-20 09:06:29,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1417 transitions. [2024-11-20 09:06:29,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:29,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:29,173 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:29,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 09:06:29,173 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:29,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1014010927, now seen corresponding path program 1 times [2024-11-20 09:06:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:29,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983892184] [2024-11-20 09:06:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:29,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983892184] [2024-11-20 09:06:29,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983892184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:29,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:29,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:06:29,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883615634] [2024-11-20 09:06:29,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:29,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:06:29,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:29,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:06:29,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:06:29,271 INFO L87 Difference]: Start difference. First operand 966 states and 1417 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:29,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:29,409 INFO L93 Difference]: Finished difference Result 2012 states and 2939 transitions. [2024-11-20 09:06:29,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:06:29,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-20 09:06:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:29,415 INFO L225 Difference]: With dead ends: 2012 [2024-11-20 09:06:29,415 INFO L226 Difference]: Without dead ends: 1122 [2024-11-20 09:06:29,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:06:29,418 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 104 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:29,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 510 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 09:06:29,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-20 09:06:29,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 917. [2024-11-20 09:06:29,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 846 states have (on average 1.41725768321513) internal successors, (1199), 848 states have internal predecessors, (1199), 64 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-20 09:06:29,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1327 transitions. [2024-11-20 09:06:29,481 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1327 transitions. Word has length 139 [2024-11-20 09:06:29,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:29,482 INFO L471 AbstractCegarLoop]: Abstraction has 917 states and 1327 transitions. [2024-11-20 09:06:29,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-20 09:06:29,482 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1327 transitions. [2024-11-20 09:06:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 09:06:29,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:29,484 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:29,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 09:06:29,484 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:29,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1227230246, now seen corresponding path program 1 times [2024-11-20 09:06:29,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:29,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790389939] [2024-11-20 09:06:29,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:29,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:31,583 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:31,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:31,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790389939] [2024-11-20 09:06:31,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790389939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:31,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:31,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 09:06:31,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971161645] [2024-11-20 09:06:31,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:31,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 09:06:31,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:31,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 09:06:31,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:06:31,587 INFO L87 Difference]: Start difference. First operand 917 states and 1327 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-20 09:06:32,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:32,853 INFO L93 Difference]: Finished difference Result 1542 states and 2230 transitions. [2024-11-20 09:06:32,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 09:06:32,854 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 140 [2024-11-20 09:06:32,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:32,860 INFO L225 Difference]: With dead ends: 1542 [2024-11-20 09:06:32,860 INFO L226 Difference]: Without dead ends: 1033 [2024-11-20 09:06:32,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2024-11-20 09:06:32,862 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 726 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:32,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1426 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:06:32,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2024-11-20 09:06:32,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1021. [2024-11-20 09:06:32,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 947 states have (on average 1.4181626187961984) internal successors, (1343), 950 states have internal predecessors, (1343), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-20 09:06:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1475 transitions. [2024-11-20 09:06:32,995 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1475 transitions. Word has length 140 [2024-11-20 09:06:32,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:32,995 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1475 transitions. [2024-11-20 09:06:32,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-20 09:06:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1475 transitions. [2024-11-20 09:06:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 09:06:32,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:32,998 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:32,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 09:06:32,999 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:32,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash -392576892, now seen corresponding path program 1 times [2024-11-20 09:06:32,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:32,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112470937] [2024-11-20 09:06:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:33,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 09:06:34,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:34,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112470937] [2024-11-20 09:06:34,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112470937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:34,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:34,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:06:34,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262793066] [2024-11-20 09:06:34,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:34,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:06:34,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:34,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:06:34,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:06:34,948 INFO L87 Difference]: Start difference. First operand 1021 states and 1475 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:35,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:35,594 INFO L93 Difference]: Finished difference Result 1739 states and 2508 transitions. [2024-11-20 09:06:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:06:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-20 09:06:35,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:35,599 INFO L225 Difference]: With dead ends: 1739 [2024-11-20 09:06:35,599 INFO L226 Difference]: Without dead ends: 1126 [2024-11-20 09:06:35,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:06:35,601 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 578 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:35,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 663 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:06:35,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-20 09:06:35,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1122. [2024-11-20 09:06:35,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1038 states have (on average 1.4113680154142583) internal successors, (1465), 1043 states have internal predecessors, (1465), 74 states have call successors, (74), 9 states have call predecessors, (74), 9 states have return successors, (74), 69 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-20 09:06:35,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1613 transitions. [2024-11-20 09:06:35,695 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1613 transitions. Word has length 140 [2024-11-20 09:06:35,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:35,695 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1613 transitions. [2024-11-20 09:06:35,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 09:06:35,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1613 transitions. [2024-11-20 09:06:35,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 09:06:35,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:35,697 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:06:35,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 09:06:35,698 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:35,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:35,698 INFO L85 PathProgramCache]: Analyzing trace with hash 921922377, now seen corresponding path program 1 times [2024-11-20 09:06:35,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:35,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575737428] [2024-11-20 09:06:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:35,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 09:06:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 09:06:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,662 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-20 09:06:36,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:36,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575737428] [2024-11-20 09:06:36,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575737428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:06:36,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100499280] [2024-11-20 09:06:36,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:36,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:06:36,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:06:36,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:06:36,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 09:06:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:36,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-20 09:06:36,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:06:37,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 52 [2024-11-20 09:06:37,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 76 [2024-11-20 09:06:37,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 09:06:37,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:38,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:38,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:38,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:39,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:39,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:39,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:40,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 09:06:40,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 41 [2024-11-20 09:06:40,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:06:40,498 INFO L349 Elim1Store]: treesize reduction 74, result has 51.3 percent of original size [2024-11-20 09:06:40,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 38 treesize of output 102