./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-80.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 511db833c8808b53f89aa03d82cf934769dba4f9f9153f0cd5ce6daaa43720ad --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 07:45:36,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 07:45:36,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 07:45:36,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 07:45:36,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 07:45:36,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 07:45:36,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 07:45:36,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 07:45:36,630 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 07:45:36,631 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 07:45:36,631 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 07:45:36,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 07:45:36,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 07:45:36,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 07:45:36,635 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 07:45:36,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 07:45:36,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 07:45:36,636 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 07:45:36,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 07:45:36,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 07:45:36,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 07:45:36,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 07:45:36,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 07:45:36,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 07:45:36,642 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 07:45:36,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 07:45:36,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 07:45:36,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 07:45:36,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 07:45:36,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 07:45:36,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 07:45:36,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 07:45:36,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:45:36,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 07:45:36,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 07:45:36,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 07:45:36,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 07:45:36,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 07:45:36,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 07:45:36,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 07:45:36,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 07:45:36,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 07:45:36,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 511db833c8808b53f89aa03d82cf934769dba4f9f9153f0cd5ce6daaa43720ad [2024-11-12 07:45:36,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 07:45:36,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 07:45:36,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 07:45:36,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 07:45:36,998 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 07:45:37,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-80.i [2024-11-12 07:45:38,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 07:45:38,735 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 07:45:38,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-80.i [2024-11-12 07:45:38,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6753a82/c6f1df52f1c64fb5a4b8ead8cabe2f41/FLAG1a161742b [2024-11-12 07:45:38,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6753a82/c6f1df52f1c64fb5a4b8ead8cabe2f41 [2024-11-12 07:45:38,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 07:45:38,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 07:45:38,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 07:45:38,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 07:45:38,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 07:45:38,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:45:38" (1/1) ... [2024-11-12 07:45:38,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba3c6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:38, skipping insertion in model container [2024-11-12 07:45:38,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:45:38" (1/1) ... [2024-11-12 07:45:38,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 07:45:39,023 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-s_file-80.i[916,929] [2024-11-12 07:45:39,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:45:39,147 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 07:45:39,161 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-s_file-80.i[916,929] [2024-11-12 07:45:39,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:45:39,267 INFO L204 MainTranslator]: Completed translation [2024-11-12 07:45:39,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39 WrapperNode [2024-11-12 07:45:39,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 07:45:39,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 07:45:39,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 07:45:39,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 07:45:39,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,348 INFO L138 Inliner]: procedures = 30, calls = 228, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 764 [2024-11-12 07:45:39,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 07:45:39,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 07:45:39,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 07:45:39,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 07:45:39,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,376 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,385 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-12 07:45:39,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 07:45:39,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 07:45:39,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 07:45:39,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 07:45:39,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (1/1) ... [2024-11-12 07:45:39,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:45:39,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:45:39,512 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) [2024-11-12 07:45:39,519 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 [2024-11-12 07:45:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 07:45:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-12 07:45:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-12 07:45:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 07:45:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-12 07:45:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-12 07:45:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 07:45:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 07:45:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 07:45:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 07:45:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 07:45:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 07:45:39,785 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 07:45:39,787 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 07:45:40,637 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-11-12 07:45:40,637 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 07:45:40,657 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 07:45:40,657 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 07:45:40,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:45:40 BoogieIcfgContainer [2024-11-12 07:45:40,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 07:45:40,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 07:45:40,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 07:45:40,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 07:45:40,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:45:38" (1/3) ... [2024-11-12 07:45:40,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9256e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:45:40, skipping insertion in model container [2024-11-12 07:45:40,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:45:39" (2/3) ... [2024-11-12 07:45:40,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9256e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:45:40, skipping insertion in model container [2024-11-12 07:45:40,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:45:40" (3/3) ... [2024-11-12 07:45:40,669 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-80.i [2024-11-12 07:45:40,688 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 07:45:40,688 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 07:45:40,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 07:45:40,758 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;@5aaeb45d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 07:45:40,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 07:45:40,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:45:40,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:45:40,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:45:40,780 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:45:40,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:45:40,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:45:40,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1448501280, now seen corresponding path program 1 times [2024-11-12 07:45:40,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:45:40,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841700847] [2024-11-12 07:45:40,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:45:40,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:45:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:45:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:45:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:45:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:45:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:45:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:45:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:45:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:45:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:45:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:45:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:45:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:45:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:45:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:45:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:45:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:45:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:45:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:45:41,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:45:41,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841700847] [2024-11-12 07:45:41,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841700847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:45:41,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:45:41,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 07:45:41,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635401160] [2024-11-12 07:45:41,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:45:41,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 07:45:41,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:45:41,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 07:45:41,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:45:41,422 INFO L87 Difference]: Start difference. First operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:45:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:45:41,465 INFO L93 Difference]: Finished difference Result 301 states and 469 transitions. [2024-11-12 07:45:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 07:45:41,467 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-12 07:45:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:45:41,477 INFO L225 Difference]: With dead ends: 301 [2024-11-12 07:45:41,478 INFO L226 Difference]: Without dead ends: 150 [2024-11-12 07:45:41,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:45:41,488 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:45:41,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:45:41,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-12 07:45:41,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-12 07:45:41,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 131 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:45:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-11-12 07:45:41,550 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 153 [2024-11-12 07:45:41,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:45:41,551 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-11-12 07:45:41,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:45:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-11-12 07:45:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:45:41,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:45:41,555 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:45:41,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 07:45:41,556 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:45:41,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:45:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1664099722, now seen corresponding path program 1 times [2024-11-12 07:45:41,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:45:41,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368012236] [2024-11-12 07:45:41,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:45:41,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:45:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:45:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:45:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:45:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:45:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:45:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:45:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:45:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:41,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:45:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:45:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:45:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:45:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:45:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:45:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:45:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:45:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:45:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:45:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:45:42,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:45:42,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368012236] [2024-11-12 07:45:42,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368012236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:45:42,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:45:42,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:45:42,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902410906] [2024-11-12 07:45:42,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:45:42,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:45:42,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:45:42,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:45:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:42,056 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:45:42,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:45:42,129 INFO L93 Difference]: Finished difference Result 299 states and 444 transitions. [2024-11-12 07:45:42,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:45:42,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-12 07:45:42,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:45:42,133 INFO L225 Difference]: With dead ends: 299 [2024-11-12 07:45:42,133 INFO L226 Difference]: Without dead ends: 152 [2024-11-12 07:45:42,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:42,139 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 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 [2024-11-12 07:45:42,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:45:42,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-12 07:45:42,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-12 07:45:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 133 states have internal predecessors, (190), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:45:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2024-11-12 07:45:42,175 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 153 [2024-11-12 07:45:42,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:45:42,178 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2024-11-12 07:45:42,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:45:42,178 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2024-11-12 07:45:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:45:42,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:45:42,183 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:45:42,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 07:45:42,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:45:42,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:45:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash -719825016, now seen corresponding path program 1 times [2024-11-12 07:45:42,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:45:42,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725677634] [2024-11-12 07:45:42,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:45:42,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:45:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:45:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:45:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:45:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:45:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:45:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:45:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:45:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:45:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:45:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:45:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:45:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:45:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:45:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:45:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:45:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:45:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:45:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,651 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:45:42,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:45:42,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725677634] [2024-11-12 07:45:42,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725677634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:45:42,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:45:42,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:45:42,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101634095] [2024-11-12 07:45:42,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:45:42,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:45:42,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:45:42,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:45:42,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:42,657 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:42,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:45:42,708 INFO L93 Difference]: Finished difference Result 303 states and 448 transitions. [2024-11-12 07:45:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:45:42,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-12 07:45:42,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:45:42,711 INFO L225 Difference]: With dead ends: 303 [2024-11-12 07:45:42,711 INFO L226 Difference]: Without dead ends: 154 [2024-11-12 07:45:42,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:42,713 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 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 [2024-11-12 07:45:42,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:45:42,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-12 07:45:42,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-12 07:45:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:45:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 226 transitions. [2024-11-12 07:45:42,733 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 226 transitions. Word has length 153 [2024-11-12 07:45:42,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:45:42,736 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 226 transitions. [2024-11-12 07:45:42,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:42,736 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 226 transitions. [2024-11-12 07:45:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:45:42,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:45:42,753 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:45:42,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 07:45:42,753 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:45:42,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:45:42,754 INFO L85 PathProgramCache]: Analyzing trace with hash -90117501, now seen corresponding path program 1 times [2024-11-12 07:45:42,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:45:42,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250712257] [2024-11-12 07:45:42,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:45:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:45:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:45:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:45:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:45:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:45:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:45:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:45:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:45:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:45:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:42,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:45:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:45:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:45:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:45:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:45:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:45:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:45:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:45:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:45:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:45:43,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:45:43,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250712257] [2024-11-12 07:45:43,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250712257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:45:43,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:45:43,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:45:43,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856066636] [2024-11-12 07:45:43,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:45:43,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:45:43,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:45:43,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:45:43,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:43,033 INFO L87 Difference]: Start difference. First operand 154 states and 226 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:43,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:45:43,066 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-11-12 07:45:43,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:45:43,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:45:43,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:45:43,072 INFO L225 Difference]: With dead ends: 308 [2024-11-12 07:45:43,072 INFO L226 Difference]: Without dead ends: 157 [2024-11-12 07:45:43,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:43,076 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:45:43,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 647 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:45:43,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-12 07:45:43,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2024-11-12 07:45:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:45:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2024-11-12 07:45:43,093 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 155 [2024-11-12 07:45:43,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:45:43,095 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2024-11-12 07:45:43,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2024-11-12 07:45:43,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:45:43,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:45:43,098 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:45:43,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 07:45:43,098 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:45:43,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:45:43,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1684889861, now seen corresponding path program 1 times [2024-11-12 07:45:43,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:45:43,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954611907] [2024-11-12 07:45:43,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:45:43,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:45:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:45:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:45:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:45:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:45:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:45:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:45:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:45:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:45:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:45:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:45:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:45:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:45:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:45:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:45:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:45:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:45:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:45:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:45:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:45:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954611907] [2024-11-12 07:45:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954611907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:45:43,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:45:43,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:45:43,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361620236] [2024-11-12 07:45:43,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:45:43,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:45:43,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:45:43,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:45:43,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:43,420 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:45:43,458 INFO L93 Difference]: Finished difference Result 312 states and 457 transitions. [2024-11-12 07:45:43,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:45:43,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:45:43,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:45:43,460 INFO L225 Difference]: With dead ends: 312 [2024-11-12 07:45:43,460 INFO L226 Difference]: Without dead ends: 159 [2024-11-12 07:45:43,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:45:43,461 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:45:43,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:45:43,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-12 07:45:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-11-12 07:45:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.410071942446043) internal successors, (196), 139 states have internal predecessors, (196), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:45:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 230 transitions. [2024-11-12 07:45:43,481 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 230 transitions. Word has length 155 [2024-11-12 07:45:43,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:45:43,481 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 230 transitions. [2024-11-12 07:45:43,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:43,481 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 230 transitions. [2024-11-12 07:45:43,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:45:43,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:45:43,483 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:45:43,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 07:45:43,485 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:45:43,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:45:43,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1686736903, now seen corresponding path program 1 times [2024-11-12 07:45:43,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:45:43,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87523435] [2024-11-12 07:45:43,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:45:43,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:45:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:45:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:45:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:45:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:45:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:45:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:45:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:45:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:45:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:45:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:45:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:45:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:45:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:45:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:45:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:45:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:45:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:45:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:45:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:45:44,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:45:44,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87523435] [2024-11-12 07:45:44,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87523435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:45:44,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:45:44,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:45:44,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936146812] [2024-11-12 07:45:44,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:45:44,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:45:44,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:45:44,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:45:44,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:45:44,255 INFO L87 Difference]: Start difference. First operand 158 states and 230 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:45:44,582 INFO L93 Difference]: Finished difference Result 317 states and 464 transitions. [2024-11-12 07:45:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:45:44,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:45:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:45:44,584 INFO L225 Difference]: With dead ends: 317 [2024-11-12 07:45:44,584 INFO L226 Difference]: Without dead ends: 162 [2024-11-12 07:45:44,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:45:44,586 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 2 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:45:44,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 754 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:45:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-12 07:45:44,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2024-11-12 07:45:44,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.408450704225352) internal successors, (200), 142 states have internal predecessors, (200), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:45:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 234 transitions. [2024-11-12 07:45:44,593 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 234 transitions. Word has length 155 [2024-11-12 07:45:44,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:45:44,594 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 234 transitions. [2024-11-12 07:45:44,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:45:44,595 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 234 transitions. [2024-11-12 07:45:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:45:44,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:45:44,596 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:45:44,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 07:45:44,597 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:45:44,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:45:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash -118701431, now seen corresponding path program 1 times [2024-11-12 07:45:44,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:45:44,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301897381] [2024-11-12 07:45:44,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:45:44,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:45:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat