./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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-83.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 e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:07:19,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:07:19,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:07:19,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:07:19,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:07:19,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:07:19,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:07:19,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:07:19,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:07:19,831 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:07:19,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:07:19,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:07:19,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:07:19,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:07:19,835 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:07:19,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:07:19,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:07:19,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:07:19,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:07:19,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:07:19,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:07:19,841 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:07:19,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:07:19,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:07:19,842 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:07:19,842 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:07:19,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:07:19,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:07:19,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:07:19,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:07:19,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:07:19,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:07:19,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:07:19,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:07:19,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:07:19,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:07:19,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:07:19,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:07:19,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:07:19,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:07:19,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:07:19,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:07:19,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09 [2024-11-09 02:07:20,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:07:20,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:07:20,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:07:20,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:07:20,215 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:07:20,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i [2024-11-09 02:07:21,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:07:21,954 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:07:21,955 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i [2024-11-09 02:07:21,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/352247484/f326a15572244122a1d1ffeeca064890/FLAGfc36c3237 [2024-11-09 02:07:22,341 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/352247484/f326a15572244122a1d1ffeeca064890 [2024-11-09 02:07:22,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:07:22,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:07:22,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:07:22,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:07:22,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:07:22,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4007c8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22, skipping insertion in model container [2024-11-09 02:07:22,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,387 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:07:22,563 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-83.i[916,929] [2024-11-09 02:07:22,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:07:22,630 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:07:22,641 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-83.i[916,929] [2024-11-09 02:07:22,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:07:22,706 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:07:22,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22 WrapperNode [2024-11-09 02:07:22,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:07:22,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:07:22,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:07:22,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:07:22,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,807 INFO L138 Inliner]: procedures = 30, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 512 [2024-11-09 02:07:22,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:07:22,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:07:22,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:07:22,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:07:22,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,832 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,847 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-09 02:07:22,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:07:22,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:07:22,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:07:22,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:07:22,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (1/1) ... [2024-11-09 02:07:22,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:07:22,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:07:22,971 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) [2024-11-09 02:07:22,977 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 [2024-11-09 02:07:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:07:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 02:07:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 02:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 02:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 02:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 02:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 02:07:23,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 02:07:23,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 02:07:23,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 02:07:23,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:07:23,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:07:23,215 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:07:23,218 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:07:23,800 INFO L? ?]: Removed 139 outVars from TransFormulas that were not future-live. [2024-11-09 02:07:23,800 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:07:23,822 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:07:23,823 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 02:07:23,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:07:23 BoogieIcfgContainer [2024-11-09 02:07:23,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:07:23,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:07:23,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:07:23,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:07:23,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:07:22" (1/3) ... [2024-11-09 02:07:23,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:07:23, skipping insertion in model container [2024-11-09 02:07:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:07:22" (2/3) ... [2024-11-09 02:07:23,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:07:23, skipping insertion in model container [2024-11-09 02:07:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:07:23" (3/3) ... [2024-11-09 02:07:23,834 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-83.i [2024-11-09 02:07:23,851 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:07:23,851 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:07:23,907 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:07:23,915 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;@589bdd92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:07:23,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 02:07:23,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 02:07:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 02:07:23,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:23,935 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:23,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:23,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1804544545, now seen corresponding path program 1 times [2024-11-09 02:07:23,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:23,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075531725] [2024-11-09 02:07:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:23,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 02:07:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 02:07:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:07:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 02:07:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:07:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 02:07:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 02:07:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 02:07:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:07:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 02:07:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 02:07:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:24,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075531725] [2024-11-09 02:07:24,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075531725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:24,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:24,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:07:24,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121332349] [2024-11-09 02:07:24,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:24,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:07:24,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:24,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:07:24,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:07:24,760 INFO L87 Difference]: Start difference. First operand has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:24,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:24,839 INFO L93 Difference]: Finished difference Result 220 states and 341 transitions. [2024-11-09 02:07:24,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:07:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-09 02:07:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:24,853 INFO L225 Difference]: With dead ends: 220 [2024-11-09 02:07:24,853 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 02:07:24,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:07:24,861 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 02:07:24,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 02:07:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 02:07:24,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-09 02:07:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 97 states have internal predecessors, (133), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 02:07:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 155 transitions. [2024-11-09 02:07:24,911 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 155 transitions. Word has length 106 [2024-11-09 02:07:24,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:24,914 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 155 transitions. [2024-11-09 02:07:24,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions. [2024-11-09 02:07:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 02:07:24,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:24,920 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:24,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:07:24,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:24,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:24,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1810364381, now seen corresponding path program 1 times [2024-11-09 02:07:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:24,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63309102] [2024-11-09 02:07:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 02:07:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 02:07:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:07:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 02:07:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:07:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 02:07:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 02:07:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 02:07:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:07:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 02:07:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 02:07:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:25,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:25,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63309102] [2024-11-09 02:07:25,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63309102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:25,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:25,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:07:25,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298458262] [2024-11-09 02:07:25,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:25,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:07:25,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:25,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:07:25,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:07:25,260 INFO L87 Difference]: Start difference. First operand 110 states and 155 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:25,294 INFO L93 Difference]: Finished difference Result 220 states and 311 transitions. [2024-11-09 02:07:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:07:25,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-09 02:07:25,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:25,297 INFO L225 Difference]: With dead ends: 220 [2024-11-09 02:07:25,297 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 02:07:25,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:07:25,300 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 440 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 [2024-11-09 02:07:25,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 440 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 02:07:25,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 02:07:25,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2024-11-09 02:07:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 99 states have internal predecessors, (135), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 02:07:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 157 transitions. [2024-11-09 02:07:25,312 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 157 transitions. Word has length 106 [2024-11-09 02:07:25,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:25,313 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 157 transitions. [2024-11-09 02:07:25,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:25,313 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 157 transitions. [2024-11-09 02:07:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 02:07:25,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:25,316 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:25,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:07:25,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:25,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:25,317 INFO L85 PathProgramCache]: Analyzing trace with hash -35357019, now seen corresponding path program 1 times [2024-11-09 02:07:25,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:25,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045739285] [2024-11-09 02:07:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 02:07:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 02:07:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:07:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 02:07:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:07:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 02:07:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 02:07:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 02:07:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:07:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 02:07:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 02:07:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:25,549 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:25,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:25,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045739285] [2024-11-09 02:07:25,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045739285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:25,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:25,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:07:25,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658158505] [2024-11-09 02:07:25,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:25,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:07:25,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:25,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:07:25,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:07:25,556 INFO L87 Difference]: Start difference. First operand 112 states and 157 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:25,600 INFO L93 Difference]: Finished difference Result 224 states and 315 transitions. [2024-11-09 02:07:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:07:25,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-09 02:07:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:25,604 INFO L225 Difference]: With dead ends: 224 [2024-11-09 02:07:25,605 INFO L226 Difference]: Without dead ends: 115 [2024-11-09 02:07:25,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:07:25,610 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 442 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 [2024-11-09 02:07:25,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 442 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 02:07:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-09 02:07:25,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2024-11-09 02:07:25,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 101 states have internal predecessors, (137), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 02:07:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2024-11-09 02:07:25,629 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 106 [2024-11-09 02:07:25,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:25,630 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2024-11-09 02:07:25,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:25,630 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2024-11-09 02:07:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 02:07:25,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:25,632 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:25,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:07:25,632 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:25,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:25,633 INFO L85 PathProgramCache]: Analyzing trace with hash -33509977, now seen corresponding path program 1 times [2024-11-09 02:07:25,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:25,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140702842] [2024-11-09 02:07:25,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:25,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 02:07:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 02:07:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:07:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 02:07:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:07:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 02:07:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 02:07:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 02:07:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:07:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 02:07:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 02:07:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:26,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140702842] [2024-11-09 02:07:26,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140702842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:26,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:26,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:07:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408696096] [2024-11-09 02:07:26,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:26,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:07:26,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:26,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:07:26,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:07:26,146 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:26,362 INFO L93 Difference]: Finished difference Result 225 states and 315 transitions. [2024-11-09 02:07:26,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:07:26,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-09 02:07:26,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:26,366 INFO L225 Difference]: With dead ends: 225 [2024-11-09 02:07:26,366 INFO L226 Difference]: Without dead ends: 114 [2024-11-09 02:07:26,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:07:26,371 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 138 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 02:07:26,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 153 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 02:07:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-09 02:07:26,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-09 02:07:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 101 states have internal predecessors, (136), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 02:07:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 158 transitions. [2024-11-09 02:07:26,391 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 158 transitions. Word has length 106 [2024-11-09 02:07:26,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:26,392 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-11-09 02:07:26,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 158 transitions. [2024-11-09 02:07:26,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 02:07:26,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:26,395 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:26,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:07:26,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:26,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:26,399 INFO L85 PathProgramCache]: Analyzing trace with hash 895739275, now seen corresponding path program 1 times [2024-11-09 02:07:26,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:26,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688028725] [2024-11-09 02:07:26,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:26,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 02:07:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 02:07:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:07:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 02:07:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:07:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 02:07:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 02:07:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 02:07:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:07:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 02:07:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 02:07:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:26,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:26,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688028725] [2024-11-09 02:07:26,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688028725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:26,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:26,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:07:26,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893142442] [2024-11-09 02:07:26,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:26,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:07:26,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:26,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:07:26,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:07:26,692 INFO L87 Difference]: Start difference. First operand 114 states and 158 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:27,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:27,016 INFO L93 Difference]: Finished difference Result 227 states and 316 transitions. [2024-11-09 02:07:27,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:07:27,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-09 02:07:27,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:27,019 INFO L225 Difference]: With dead ends: 227 [2024-11-09 02:07:27,019 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 02:07:27,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:07:27,020 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 3 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 02:07:27,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 437 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 02:07:27,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 02:07:27,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-09 02:07:27,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 103 states have internal predecessors, (138), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 02:07:27,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 160 transitions. [2024-11-09 02:07:27,034 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 160 transitions. Word has length 107 [2024-11-09 02:07:27,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:27,034 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 160 transitions. [2024-11-09 02:07:27,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:27,034 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions. [2024-11-09 02:07:27,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 02:07:27,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:27,036 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:27,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:07:27,037 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:27,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:27,038 INFO L85 PathProgramCache]: Analyzing trace with hash 85606593, now seen corresponding path program 1 times [2024-11-09 02:07:27,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:27,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244298364] [2024-11-09 02:07:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:27,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 02:07:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 02:07:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:07:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 02:07:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:07:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 02:07:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 02:07:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 02:07:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:07:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 02:07:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 02:07:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:28,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:28,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244298364] [2024-11-09 02:07:28,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244298364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:28,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:28,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:07:28,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198281257] [2024-11-09 02:07:28,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:28,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:07:28,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:28,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:07:28,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:07:28,712 INFO L87 Difference]: Start difference. First operand 116 states and 160 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 02:07:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:29,331 INFO L93 Difference]: Finished difference Result 310 states and 426 transitions. [2024-11-09 02:07:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:07:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-09 02:07:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:29,334 INFO L225 Difference]: With dead ends: 310 [2024-11-09 02:07:29,334 INFO L226 Difference]: Without dead ends: 197 [2024-11-09 02:07:29,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-09 02:07:29,336 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 84 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 02:07:29,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 667 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 02:07:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-09 02:07:29,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-09 02:07:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 176 states have (on average 1.3409090909090908) internal successors, (236), 177 states have internal predecessors, (236), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 02:07:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2024-11-09 02:07:29,353 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 108 [2024-11-09 02:07:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:29,354 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2024-11-09 02:07:29,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 02:07:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2024-11-09 02:07:29,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 02:07:29,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:29,356 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:29,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:07:29,356 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:29,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:29,359 INFO L85 PathProgramCache]: Analyzing trace with hash -935461761, now seen corresponding path program 1 times [2024-11-09 02:07:29,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:29,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850413610] [2024-11-09 02:07:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:29,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 02:07:29,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328185802] [2024-11-09 02:07:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:29,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:07:29,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:07:29,510 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) [2024-11-09 02:07:29,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:07:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:29,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 02:07:29,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:07:30,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:07:30,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2024-11-09 02:07:30,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:07:30,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 12 [2024-11-09 02:07:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:30,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:07:30,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:30,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850413610] [2024-11-09 02:07:30,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 02:07:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328185802] [2024-11-09 02:07:30,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328185802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:30,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:30,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:07:30,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890318274] [2024-11-09 02:07:30,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:30,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:07:30,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:30,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:07:30,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:07:30,351 INFO L87 Difference]: Start difference. First operand 194 states and 266 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:31,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:31,660 INFO L93 Difference]: Finished difference Result 566 states and 778 transitions. [2024-11-09 02:07:31,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:07:31,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-09 02:07:31,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:31,665 INFO L225 Difference]: With dead ends: 566 [2024-11-09 02:07:31,665 INFO L226 Difference]: Without dead ends: 375 [2024-11-09 02:07:31,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:07:31,666 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 216 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 02:07:31,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 551 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 02:07:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-09 02:07:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 201. [2024-11-09 02:07:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 183 states have (on average 1.3333333333333333) internal successors, (244), 184 states have internal predecessors, (244), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 02:07:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 274 transitions. [2024-11-09 02:07:31,694 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 274 transitions. Word has length 108 [2024-11-09 02:07:31,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:31,694 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 274 transitions. [2024-11-09 02:07:31,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:31,695 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 274 transitions. [2024-11-09 02:07:31,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 02:07:31,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:31,696 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:31,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 02:07:31,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:07:31,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:31,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:31,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1718407104, now seen corresponding path program 1 times [2024-11-09 02:07:31,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:31,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801652963] [2024-11-09 02:07:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:31,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 02:07:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 02:07:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:07:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 02:07:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:07:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 02:07:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 02:07:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 02:07:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:07:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 02:07:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 02:07:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:32,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:32,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801652963] [2024-11-09 02:07:32,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801652963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:32,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:07:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419445743] [2024-11-09 02:07:32,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:32,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:07:32,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:07:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:07:32,457 INFO L87 Difference]: Start difference. First operand 201 states and 274 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 02:07:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:32,844 INFO L93 Difference]: Finished difference Result 399 states and 545 transitions. [2024-11-09 02:07:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:07:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-09 02:07:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:32,847 INFO L225 Difference]: With dead ends: 399 [2024-11-09 02:07:32,847 INFO L226 Difference]: Without dead ends: 201 [2024-11-09 02:07:32,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:07:32,848 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 225 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 02:07:32,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 203 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 02:07:32,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-09 02:07:32,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-09 02:07:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 183 states have (on average 1.3224043715846994) internal successors, (242), 184 states have internal predecessors, (242), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 02:07:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 272 transitions. [2024-11-09 02:07:32,874 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 272 transitions. Word has length 108 [2024-11-09 02:07:32,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:32,875 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 272 transitions. [2024-11-09 02:07:32,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 02:07:32,875 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 272 transitions. [2024-11-09 02:07:32,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 02:07:32,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:32,876 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:32,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:07:32,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:32,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:32,877 INFO L85 PathProgramCache]: Analyzing trace with hash 450741633, now seen corresponding path program 1 times [2024-11-09 02:07:32,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:32,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948676522] [2024-11-09 02:07:32,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:32,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 02:07:32,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626646422] [2024-11-09 02:07:32,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:32,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:07:32,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:07:32,993 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) [2024-11-09 02:07:32,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 02:07:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:07:33,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 02:07:33,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:07:33,294 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 71 treesize of output 70 [2024-11-09 02:07:33,532 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 120 treesize of output 100 [2024-11-09 02:07:33,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:07:33,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2024-11-09 02:07:34,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:07:34,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 34 [2024-11-09 02:07:34,206 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 02:07:34,207 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:07:34,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:07:34,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948676522] [2024-11-09 02:07:34,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 02:07:34,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626646422] [2024-11-09 02:07:34,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626646422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:07:34,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:07:34,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 02:07:34,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311148146] [2024-11-09 02:07:34,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:07:34,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 02:07:34,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:07:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 02:07:34,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-09 02:07:34,210 INFO L87 Difference]: Start difference. First operand 201 states and 272 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:38,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:07:38,259 INFO L93 Difference]: Finished difference Result 773 states and 1049 transitions. [2024-11-09 02:07:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:07:38,260 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-09 02:07:38,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:07:38,263 INFO L225 Difference]: With dead ends: 773 [2024-11-09 02:07:38,263 INFO L226 Difference]: Without dead ends: 575 [2024-11-09 02:07:38,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:07:38,266 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 499 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 02:07:38,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 597 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 02:07:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-09 02:07:38,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 258. [2024-11-09 02:07:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 228 states have (on average 1.3245614035087718) internal successors, (302), 229 states have internal predecessors, (302), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 02:07:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 354 transitions. [2024-11-09 02:07:38,301 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 354 transitions. Word has length 108 [2024-11-09 02:07:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:07:38,302 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 354 transitions. [2024-11-09 02:07:38,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 02:07:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 354 transitions. [2024-11-09 02:07:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 02:07:38,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:07:38,304 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:07:38,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 02:07:38,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 02:07:38,505 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:07:38,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:07:38,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1137606269, now seen corresponding path program 1 times [2024-11-09 02:07:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:07:38,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876715433] [2024-11-09 02:07:38,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:07:38,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:07:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat