./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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-66.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 da17d270b97e746bcc3bb567476dd5627c9f96457d30034078a1fde8f8099861 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:09:38,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:09:38,669 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:09:38,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:09:38,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:09:38,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:09:38,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:09:38,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:09:38,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:09:38,696 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:09:38,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:09:38,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:09:38,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:09:38,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:09:38,698 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:09:38,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:09:38,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:09:38,700 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:09:38,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:09:38,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:09:38,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:09:38,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:09:38,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:09:38,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:09:38,703 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:09:38,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:09:38,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:09:38,704 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:09:38,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:09:38,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:09:38,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:09:38,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:09:38,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:09:38,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:09:38,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:09:38,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:09:38,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:09:38,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:09:38,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:09:38,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:09:38,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:09:38,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:09:38,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da17d270b97e746bcc3bb567476dd5627c9f96457d30034078a1fde8f8099861 [2024-11-19 01:09:38,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:09:38,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:09:38,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:09:38,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:09:38,935 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:09:38,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i [2024-11-19 01:09:40,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:09:40,395 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:09:40,395 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i [2024-11-19 01:09:40,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00af1f81f/db30c8af48a743248dc1b36dae44966d/FLAG9ce661b87 [2024-11-19 01:09:40,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00af1f81f/db30c8af48a743248dc1b36dae44966d [2024-11-19 01:09:40,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:09:40,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:09:40,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:09:40,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:09:40,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:09:40,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205f0b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40, skipping insertion in model container [2024-11-19 01:09:40,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:09:40,609 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-66.i[916,929] [2024-11-19 01:09:40,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:09:40,675 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:09:40,684 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-66.i[916,929] [2024-11-19 01:09:40,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:09:40,760 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:09:40,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40 WrapperNode [2024-11-19 01:09:40,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:09:40,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:09:40,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:09:40,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:09:40,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,824 INFO L138 Inliner]: procedures = 27, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 427 [2024-11-19 01:09:40,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:09:40,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:09:40,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:09:40,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:09:40,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,864 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-11-19 01:09:40,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,887 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:09:40,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:09:40,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:09:40,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:09:40,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (1/1) ... [2024-11-19 01:09:40,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:09:40,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:40,935 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) [2024-11-19 01:09:40,941 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 [2024-11-19 01:09:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:09:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 01:09:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 01:09:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:09:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:09:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:09:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:09:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:09:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:09:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:09:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:09:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:09:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:09:41,097 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:09:41,099 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:09:41,557 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-19 01:09:41,557 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:09:41,578 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:09:41,578 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:09:41,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:09:41 BoogieIcfgContainer [2024-11-19 01:09:41,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:09:41,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:09:41,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:09:41,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:09:41,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:09:40" (1/3) ... [2024-11-19 01:09:41,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e073ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:09:41, skipping insertion in model container [2024-11-19 01:09:41,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:40" (2/3) ... [2024-11-19 01:09:41,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e073ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:09:41, skipping insertion in model container [2024-11-19 01:09:41,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:09:41" (3/3) ... [2024-11-19 01:09:41,593 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-66.i [2024-11-19 01:09:41,607 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:09:41,608 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:09:41,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:09:41,663 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;@131348b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:09:41,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:09:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-19 01:09:41,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 01:09:41,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:41,678 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:41,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:41,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:41,683 INFO L85 PathProgramCache]: Analyzing trace with hash -966320857, now seen corresponding path program 1 times [2024-11-19 01:09:41,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:41,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612163439] [2024-11-19 01:09:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:41,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:42,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:42,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612163439] [2024-11-19 01:09:42,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612163439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:42,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:42,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:42,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842755482] [2024-11-19 01:09:42,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:42,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:42,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:42,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:42,188 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:42,270 INFO L93 Difference]: Finished difference Result 168 states and 262 transitions. [2024-11-19 01:09:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-19 01:09:42,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:42,281 INFO L225 Difference]: With dead ends: 168 [2024-11-19 01:09:42,281 INFO L226 Difference]: Without dead ends: 85 [2024-11-19 01:09:42,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:42,287 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 334 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 [2024-11-19 01:09:42,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 334 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-19 01:09:42,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-19 01:09:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 68 states have internal predecessors, (92), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-19 01:09:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-19 01:09:42,325 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 109 [2024-11-19 01:09:42,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:42,327 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-19 01:09:42,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-19 01:09:42,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 01:09:42,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:42,330 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:42,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:09:42,330 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:42,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:42,331 INFO L85 PathProgramCache]: Analyzing trace with hash 808686505, now seen corresponding path program 1 times [2024-11-19 01:09:42,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:42,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741017591] [2024-11-19 01:09:42,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:42,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:42,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:42,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741017591] [2024-11-19 01:09:42,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741017591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:42,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:42,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:42,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833488947] [2024-11-19 01:09:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:42,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:42,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:42,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:42,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:42,575 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:42,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:42,610 INFO L93 Difference]: Finished difference Result 168 states and 241 transitions. [2024-11-19 01:09:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:42,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-19 01:09:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:42,614 INFO L225 Difference]: With dead ends: 168 [2024-11-19 01:09:42,614 INFO L226 Difference]: Without dead ends: 87 [2024-11-19 01:09:42,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:42,615 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 337 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 [2024-11-19 01:09:42,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 337 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-19 01:09:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-19 01:09:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-19 01:09:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-11-19 01:09:42,623 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 109 [2024-11-19 01:09:42,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:42,623 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-11-19 01:09:42,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-11-19 01:09:42,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 01:09:42,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:42,625 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:42,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:09:42,626 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:42,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:42,626 INFO L85 PathProgramCache]: Analyzing trace with hash 810533547, now seen corresponding path program 1 times [2024-11-19 01:09:42,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:42,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176426544] [2024-11-19 01:09:42,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:42,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:43,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:43,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176426544] [2024-11-19 01:09:43,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176426544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:43,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:43,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781213303] [2024-11-19 01:09:43,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:43,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:43,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:43,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:43,608 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:43,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:43,843 INFO L93 Difference]: Finished difference Result 252 states and 360 transitions. [2024-11-19 01:09:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:43,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-19 01:09:43,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:43,846 INFO L225 Difference]: With dead ends: 252 [2024-11-19 01:09:43,846 INFO L226 Difference]: Without dead ends: 169 [2024-11-19 01:09:43,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:43,854 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 75 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:43,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 273 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:43,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-19 01:09:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 161. [2024-11-19 01:09:43,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 130 states have (on average 1.3307692307692307) internal successors, (173), 130 states have internal predecessors, (173), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-19 01:09:43,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 229 transitions. [2024-11-19 01:09:43,877 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 229 transitions. Word has length 109 [2024-11-19 01:09:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:43,878 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 229 transitions. [2024-11-19 01:09:43,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 229 transitions. [2024-11-19 01:09:43,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:09:43,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:43,882 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:43,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:09:43,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:43,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:43,883 INFO L85 PathProgramCache]: Analyzing trace with hash -119975266, now seen corresponding path program 1 times [2024-11-19 01:09:43,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:43,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171309814] [2024-11-19 01:09:43,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:43,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:46,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:46,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171309814] [2024-11-19 01:09:46,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171309814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:46,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:46,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:09:46,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275139122] [2024-11-19 01:09:46,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:46,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:09:46,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:46,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:09:46,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:09:46,138 INFO L87 Difference]: Start difference. First operand 161 states and 229 transitions. Second operand has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-19 01:09:46,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:46,534 INFO L93 Difference]: Finished difference Result 403 states and 575 transitions. [2024-11-19 01:09:46,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:09:46,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2024-11-19 01:09:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:46,536 INFO L225 Difference]: With dead ends: 403 [2024-11-19 01:09:46,536 INFO L226 Difference]: Without dead ends: 245 [2024-11-19 01:09:46,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:46,538 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 50 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:46,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 570 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:09:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-19 01:09:46,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 177. [2024-11-19 01:09:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 146 states have (on average 1.3424657534246576) internal successors, (196), 146 states have internal predecessors, (196), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-19 01:09:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 252 transitions. [2024-11-19 01:09:46,551 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 252 transitions. Word has length 110 [2024-11-19 01:09:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:46,552 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 252 transitions. [2024-11-19 01:09:46,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-19 01:09:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2024-11-19 01:09:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:09:46,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:46,553 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:46,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:09:46,554 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:46,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:46,554 INFO L85 PathProgramCache]: Analyzing trace with hash -706781280, now seen corresponding path program 1 times [2024-11-19 01:09:46,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:46,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284068374] [2024-11-19 01:09:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:46,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:48,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284068374] [2024-11-19 01:09:48,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284068374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:48,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:48,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:09:48,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439008092] [2024-11-19 01:09:48,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:48,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:09:48,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:09:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:09:48,109 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:09:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:49,039 INFO L93 Difference]: Finished difference Result 422 states and 592 transitions. [2024-11-19 01:09:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:09:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2024-11-19 01:09:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:49,041 INFO L225 Difference]: With dead ends: 422 [2024-11-19 01:09:49,041 INFO L226 Difference]: Without dead ends: 331 [2024-11-19 01:09:49,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:09:49,043 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 245 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:49,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 595 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:09:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-19 01:09:49,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 261. [2024-11-19 01:09:49,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 224 states have (on average 1.3482142857142858) internal successors, (302), 226 states have internal predecessors, (302), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-19 01:09:49,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 366 transitions. [2024-11-19 01:09:49,079 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 366 transitions. Word has length 110 [2024-11-19 01:09:49,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:49,080 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 366 transitions. [2024-11-19 01:09:49,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:09:49,080 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 366 transitions. [2024-11-19 01:09:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 01:09:49,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:49,083 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:49,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:09:49,083 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:49,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:49,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1708323168, now seen corresponding path program 1 times [2024-11-19 01:09:49,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:49,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495653559] [2024-11-19 01:09:49,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:49,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:49,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:49,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495653559] [2024-11-19 01:09:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495653559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:49,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:49,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:49,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039729630] [2024-11-19 01:09:49,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:49,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:49,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:49,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:49,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:49,614 INFO L87 Difference]: Start difference. First operand 261 states and 366 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:50,063 INFO L93 Difference]: Finished difference Result 571 states and 784 transitions. [2024-11-19 01:09:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:50,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2024-11-19 01:09:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:50,068 INFO L225 Difference]: With dead ends: 571 [2024-11-19 01:09:50,069 INFO L226 Difference]: Without dead ends: 436 [2024-11-19 01:09:50,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:09:50,072 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 189 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:50,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 255 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:09:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-19 01:09:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 292. [2024-11-19 01:09:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 245 states have (on average 1.3183673469387756) internal successors, (323), 248 states have internal predecessors, (323), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 01:09:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 399 transitions. [2024-11-19 01:09:50,118 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 399 transitions. Word has length 110 [2024-11-19 01:09:50,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:50,119 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 399 transitions. [2024-11-19 01:09:50,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:50,120 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 399 transitions. [2024-11-19 01:09:50,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 01:09:50,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:50,122 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:50,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:09:50,122 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:50,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:50,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2079434709, now seen corresponding path program 1 times [2024-11-19 01:09:50,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:50,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969801661] [2024-11-19 01:09:50,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:50,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:50,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969801661] [2024-11-19 01:09:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969801661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903375146] [2024-11-19 01:09:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:50,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:50,637 INFO L87 Difference]: Start difference. First operand 292 states and 399 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:50,807 INFO L93 Difference]: Finished difference Result 566 states and 778 transitions. [2024-11-19 01:09:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-19 01:09:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:50,809 INFO L225 Difference]: With dead ends: 566 [2024-11-19 01:09:50,809 INFO L226 Difference]: Without dead ends: 298 [2024-11-19 01:09:50,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:50,810 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 71 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:50,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 222 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-19 01:09:50,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 290. [2024-11-19 01:09:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 243 states have (on average 1.308641975308642) internal successors, (318), 246 states have internal predecessors, (318), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 01:09:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 394 transitions. [2024-11-19 01:09:50,836 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 394 transitions. Word has length 111 [2024-11-19 01:09:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:50,837 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 394 transitions. [2024-11-19 01:09:50,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 394 transitions. [2024-11-19 01:09:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 01:09:50,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:50,838 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:50,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:09:50,839 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:50,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 977296981, now seen corresponding path program 1 times [2024-11-19 01:09:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:50,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239151453] [2024-11-19 01:09:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:51,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:51,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239151453] [2024-11-19 01:09:51,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239151453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:51,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:51,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:51,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430949653] [2024-11-19 01:09:51,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:51,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:51,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:51,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:51,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:51,242 INFO L87 Difference]: Start difference. First operand 290 states and 394 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:51,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:51,397 INFO L93 Difference]: Finished difference Result 522 states and 711 transitions. [2024-11-19 01:09:51,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:51,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-19 01:09:51,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:51,399 INFO L225 Difference]: With dead ends: 522 [2024-11-19 01:09:51,399 INFO L226 Difference]: Without dead ends: 256 [2024-11-19 01:09:51,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:51,400 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 74 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:51,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 273 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-19 01:09:51,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2024-11-19 01:09:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 190 states have (on average 1.305263157894737) internal successors, (248), 191 states have internal predecessors, (248), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 308 transitions. [2024-11-19 01:09:51,416 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 308 transitions. Word has length 111 [2024-11-19 01:09:51,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:51,416 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 308 transitions. [2024-11-19 01:09:51,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:51,417 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 308 transitions. [2024-11-19 01:09:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 01:09:51,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:51,418 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:51,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:09:51,418 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:51,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1213662984, now seen corresponding path program 1 times [2024-11-19 01:09:51,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:51,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384664649] [2024-11-19 01:09:51,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:51,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:51,912 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:51,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:51,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384664649] [2024-11-19 01:09:51,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384664649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:51,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:51,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:51,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127728954] [2024-11-19 01:09:51,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:51,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:51,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:51,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:51,917 INFO L87 Difference]: Start difference. First operand 227 states and 308 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:52,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:52,319 INFO L93 Difference]: Finished difference Result 531 states and 719 transitions. [2024-11-19 01:09:52,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:52,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2024-11-19 01:09:52,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:52,322 INFO L225 Difference]: With dead ends: 531 [2024-11-19 01:09:52,322 INFO L226 Difference]: Without dead ends: 390 [2024-11-19 01:09:52,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:09:52,327 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 206 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:52,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 205 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:09:52,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-19 01:09:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 233. [2024-11-19 01:09:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 196 states have (on average 1.3112244897959184) internal successors, (257), 197 states have internal predecessors, (257), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 317 transitions. [2024-11-19 01:09:52,353 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 317 transitions. Word has length 112 [2024-11-19 01:09:52,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:52,354 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 317 transitions. [2024-11-19 01:09:52,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 317 transitions. [2024-11-19 01:09:52,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 01:09:52,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:52,356 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:52,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:09:52,356 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:52,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:52,356 INFO L85 PathProgramCache]: Analyzing trace with hash 277271248, now seen corresponding path program 1 times [2024-11-19 01:09:52,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:52,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800610656] [2024-11-19 01:09:52,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:52,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:52,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:52,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:52,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800610656] [2024-11-19 01:09:52,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800610656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:52,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:52,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:09:52,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10711084] [2024-11-19 01:09:52,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:52,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:09:52,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:52,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:09:52,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:09:52,411 INFO L87 Difference]: Start difference. First operand 233 states and 317 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:52,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:52,434 INFO L93 Difference]: Finished difference Result 466 states and 637 transitions. [2024-11-19 01:09:52,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:09:52,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-19 01:09:52,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:52,436 INFO L225 Difference]: With dead ends: 466 [2024-11-19 01:09:52,436 INFO L226 Difference]: Without dead ends: 236 [2024-11-19 01:09:52,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:09:52,437 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:52,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-19 01:09:52,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-19 01:09:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 199 states have (on average 1.306532663316583) internal successors, (260), 200 states have internal predecessors, (260), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:52,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 320 transitions. [2024-11-19 01:09:52,457 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 320 transitions. Word has length 113 [2024-11-19 01:09:52,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:52,457 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 320 transitions. [2024-11-19 01:09:52,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:52,458 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 320 transitions. [2024-11-19 01:09:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 01:09:52,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:52,458 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:52,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:09:52,459 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:52,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash -309534766, now seen corresponding path program 1 times [2024-11-19 01:09:52,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:52,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550719574] [2024-11-19 01:09:52,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:52,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-19 01:09:52,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:52,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550719574] [2024-11-19 01:09:52,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550719574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:52,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880235023] [2024-11-19 01:09:52,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:52,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:52,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:52,602 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) [2024-11-19 01:09:52,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:09:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:52,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 01:09:52,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:52,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:09:52,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880235023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:52,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:09:52,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 01:09:52,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472635301] [2024-11-19 01:09:52,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:52,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:52,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:52,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:52,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:52,801 INFO L87 Difference]: Start difference. First operand 236 states and 320 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:52,845 INFO L93 Difference]: Finished difference Result 478 states and 649 transitions. [2024-11-19 01:09:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:52,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-19 01:09:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:52,847 INFO L225 Difference]: With dead ends: 478 [2024-11-19 01:09:52,847 INFO L226 Difference]: Without dead ends: 245 [2024-11-19 01:09:52,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:52,848 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:52,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-19 01:09:52,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-11-19 01:09:52,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 208 states have (on average 1.2932692307692308) internal successors, (269), 209 states have internal predecessors, (269), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 329 transitions. [2024-11-19 01:09:52,868 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 329 transitions. Word has length 113 [2024-11-19 01:09:52,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:52,871 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 329 transitions. [2024-11-19 01:09:52,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:09:52,872 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 329 transitions. [2024-11-19 01:09:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 01:09:52,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:52,873 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:52,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:09:53,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 01:09:53,078 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:53,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:53,078 INFO L85 PathProgramCache]: Analyzing trace with hash -919537985, now seen corresponding path program 1 times [2024-11-19 01:09:53,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:53,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480041206] [2024-11-19 01:09:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:53,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:53,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:53,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480041206] [2024-11-19 01:09:53,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480041206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:53,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:53,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:09:53,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279730780] [2024-11-19 01:09:53,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:53,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:53,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:53,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:53,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:53,743 INFO L87 Difference]: Start difference. First operand 245 states and 329 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:54,336 INFO L93 Difference]: Finished difference Result 474 states and 639 transitions. [2024-11-19 01:09:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:54,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2024-11-19 01:09:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:54,338 INFO L225 Difference]: With dead ends: 474 [2024-11-19 01:09:54,338 INFO L226 Difference]: Without dead ends: 319 [2024-11-19 01:09:54,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:54,339 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 169 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:54,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 337 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:09:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-19 01:09:54,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 245. [2024-11-19 01:09:54,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 208 states have (on average 1.2884615384615385) internal successors, (268), 209 states have internal predecessors, (268), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:54,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 328 transitions. [2024-11-19 01:09:54,356 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 328 transitions. Word has length 113 [2024-11-19 01:09:54,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:54,357 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 328 transitions. [2024-11-19 01:09:54,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:54,357 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 328 transitions. [2024-11-19 01:09:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 01:09:54,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:54,358 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:54,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:09:54,358 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:54,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:54,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1506343999, now seen corresponding path program 1 times [2024-11-19 01:09:54,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:54,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967941477] [2024-11-19 01:09:54,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:54,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:55,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:55,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967941477] [2024-11-19 01:09:55,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967941477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:55,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:55,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:09:55,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636876232] [2024-11-19 01:09:55,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:55,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:55,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:55,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:55,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:55,218 INFO L87 Difference]: Start difference. First operand 245 states and 328 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:09:55,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:55,498 INFO L93 Difference]: Finished difference Result 437 states and 588 transitions. [2024-11-19 01:09:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:09:55,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-11-19 01:09:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:55,500 INFO L225 Difference]: With dead ends: 437 [2024-11-19 01:09:55,500 INFO L226 Difference]: Without dead ends: 282 [2024-11-19 01:09:55,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:09:55,501 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 46 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:55,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 607 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-19 01:09:55,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 243. [2024-11-19 01:09:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 206 states have (on average 1.2864077669902914) internal successors, (265), 207 states have internal predecessors, (265), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 325 transitions. [2024-11-19 01:09:55,515 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 325 transitions. Word has length 113 [2024-11-19 01:09:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:55,515 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 325 transitions. [2024-11-19 01:09:55,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:09:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 325 transitions. [2024-11-19 01:09:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 01:09:55,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:55,516 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:55,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:09:55,517 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:55,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash 452267285, now seen corresponding path program 1 times [2024-11-19 01:09:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:55,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081661839] [2024-11-19 01:09:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:55,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:56,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:56,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081661839] [2024-11-19 01:09:56,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081661839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:56,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:56,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:09:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717912298] [2024-11-19 01:09:56,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:56,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:09:56,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:09:56,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:56,078 INFO L87 Difference]: Start difference. First operand 243 states and 325 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:56,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:56,357 INFO L93 Difference]: Finished difference Result 527 states and 701 transitions. [2024-11-19 01:09:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:09:56,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-19 01:09:56,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:56,359 INFO L225 Difference]: With dead ends: 527 [2024-11-19 01:09:56,359 INFO L226 Difference]: Without dead ends: 374 [2024-11-19 01:09:56,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:56,360 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 65 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:56,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 515 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:56,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-19 01:09:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 259. [2024-11-19 01:09:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 222 states have (on average 1.2927927927927927) internal successors, (287), 223 states have internal predecessors, (287), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:09:56,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 347 transitions. [2024-11-19 01:09:56,376 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 347 transitions. Word has length 115 [2024-11-19 01:09:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:56,376 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 347 transitions. [2024-11-19 01:09:56,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 347 transitions. [2024-11-19 01:09:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 01:09:56,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:56,378 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:56,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:09:56,378 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:56,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:56,378 INFO L85 PathProgramCache]: Analyzing trace with hash -231366615, now seen corresponding path program 1 times [2024-11-19 01:09:56,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:56,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497718391] [2024-11-19 01:09:56,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:56,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:57,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:57,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497718391] [2024-11-19 01:09:57,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497718391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:57,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:57,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:09:57,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194712085] [2024-11-19 01:09:57,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:57,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:09:57,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:57,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:09:57,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:09:57,387 INFO L87 Difference]: Start difference. First operand 259 states and 347 transitions. Second operand has 10 states, 8 states have (on average 6.0) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:09:58,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:58,093 INFO L93 Difference]: Finished difference Result 570 states and 767 transitions. [2024-11-19 01:09:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:09:58,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2024-11-19 01:09:58,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:58,096 INFO L225 Difference]: With dead ends: 570 [2024-11-19 01:09:58,096 INFO L226 Difference]: Without dead ends: 401 [2024-11-19 01:09:58,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:09:58,097 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 253 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:58,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 544 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:09:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-19 01:09:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 322. [2024-11-19 01:09:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 279 states have (on average 1.3046594982078854) internal successors, (364), 281 states have internal predecessors, (364), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:09:58,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 432 transitions. [2024-11-19 01:09:58,117 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 432 transitions. Word has length 115 [2024-11-19 01:09:58,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:58,117 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 432 transitions. [2024-11-19 01:09:58,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:09:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 432 transitions. [2024-11-19 01:09:58,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 01:09:58,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:58,119 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:58,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:09:58,119 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:58,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:58,119 INFO L85 PathProgramCache]: Analyzing trace with hash -972987545, now seen corresponding path program 1 times [2024-11-19 01:09:58,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:58,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410187221] [2024-11-19 01:09:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:58,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:58,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:58,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410187221] [2024-11-19 01:09:58,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410187221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:58,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:58,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:09:58,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096465222] [2024-11-19 01:09:58,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:58,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:58,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:58,698 INFO L87 Difference]: Start difference. First operand 322 states and 432 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:59,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:59,134 INFO L93 Difference]: Finished difference Result 569 states and 765 transitions. [2024-11-19 01:09:59,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:59,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-19 01:09:59,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:59,138 INFO L225 Difference]: With dead ends: 569 [2024-11-19 01:09:59,138 INFO L226 Difference]: Without dead ends: 397 [2024-11-19 01:09:59,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:09:59,139 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 177 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:59,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 212 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:09:59,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-19 01:09:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 318. [2024-11-19 01:09:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 275 states have (on average 1.2945454545454544) internal successors, (356), 277 states have internal predecessors, (356), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:09:59,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 424 transitions. [2024-11-19 01:09:59,164 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 424 transitions. Word has length 115 [2024-11-19 01:09:59,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:59,165 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 424 transitions. [2024-11-19 01:09:59,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:59,165 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 424 transitions. [2024-11-19 01:09:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 01:09:59,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:59,167 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:59,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:09:59,167 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1484743168, now seen corresponding path program 1 times [2024-11-19 01:09:59,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:59,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322891998] [2024-11-19 01:09:59,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:59,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:09:59,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:59,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322891998] [2024-11-19 01:09:59,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322891998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:59,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:59,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:59,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483987176] [2024-11-19 01:09:59,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:59,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:59,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:59,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:59,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:59,549 INFO L87 Difference]: Start difference. First operand 318 states and 424 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:59,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:59,788 INFO L93 Difference]: Finished difference Result 731 states and 976 transitions. [2024-11-19 01:09:59,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:59,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-19 01:09:59,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:59,791 INFO L225 Difference]: With dead ends: 731 [2024-11-19 01:09:59,791 INFO L226 Difference]: Without dead ends: 433 [2024-11-19 01:09:59,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:59,792 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 62 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:59,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 354 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-19 01:09:59,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 413. [2024-11-19 01:09:59,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 367 states have (on average 1.3024523160762942) internal successors, (478), 370 states have internal predecessors, (478), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:09:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 550 transitions. [2024-11-19 01:09:59,816 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 550 transitions. Word has length 116 [2024-11-19 01:09:59,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:59,817 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 550 transitions. [2024-11-19 01:09:59,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:09:59,817 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 550 transitions. [2024-11-19 01:09:59,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 01:09:59,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:59,818 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:59,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:09:59,818 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:59,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:59,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1062041342, now seen corresponding path program 1 times [2024-11-19 01:09:59,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:59,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164905388] [2024-11-19 01:09:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:59,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:00,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:00,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164905388] [2024-11-19 01:10:00,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164905388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:00,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:00,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:00,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423747005] [2024-11-19 01:10:00,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:00,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:00,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:00,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:00,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:00,127 INFO L87 Difference]: Start difference. First operand 413 states and 550 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:00,360 INFO L93 Difference]: Finished difference Result 823 states and 1096 transitions. [2024-11-19 01:10:00,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:00,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-19 01:10:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:00,363 INFO L225 Difference]: With dead ends: 823 [2024-11-19 01:10:00,363 INFO L226 Difference]: Without dead ends: 413 [2024-11-19 01:10:00,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:00,364 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 40 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:00,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 375 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-19 01:10:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 410. [2024-11-19 01:10:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 364 states have (on average 1.2967032967032968) internal successors, (472), 367 states have internal predecessors, (472), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:10:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 544 transitions. [2024-11-19 01:10:00,409 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 544 transitions. Word has length 116 [2024-11-19 01:10:00,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:00,409 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 544 transitions. [2024-11-19 01:10:00,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 544 transitions. [2024-11-19 01:10:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 01:10:00,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:00,411 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:00,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 01:10:00,412 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:00,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1745675242, now seen corresponding path program 1 times [2024-11-19 01:10:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:00,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268954249] [2024-11-19 01:10:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:00,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:00,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:00,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268954249] [2024-11-19 01:10:00,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268954249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:00,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:00,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:10:00,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16485704] [2024-11-19 01:10:00,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:00,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:10:00,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:00,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:10:00,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:10:00,978 INFO L87 Difference]: Start difference. First operand 410 states and 544 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:01,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:01,148 INFO L93 Difference]: Finished difference Result 819 states and 1086 transitions. [2024-11-19 01:10:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:10:01,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-19 01:10:01,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:01,151 INFO L225 Difference]: With dead ends: 819 [2024-11-19 01:10:01,151 INFO L226 Difference]: Without dead ends: 412 [2024-11-19 01:10:01,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:10:01,152 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 59 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:01,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 224 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:10:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-19 01:10:01,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2024-11-19 01:10:01,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 364 states have (on average 1.293956043956044) internal successors, (471), 367 states have internal predecessors, (471), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:10:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 543 transitions. [2024-11-19 01:10:01,175 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 543 transitions. Word has length 116 [2024-11-19 01:10:01,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:01,176 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 543 transitions. [2024-11-19 01:10:01,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:01,176 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 543 transitions. [2024-11-19 01:10:01,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 01:10:01,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:01,177 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:01,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:10:01,177 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:01,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1953062276, now seen corresponding path program 1 times [2024-11-19 01:10:01,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:01,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196316408] [2024-11-19 01:10:01,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:01,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:01,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:01,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196316408] [2024-11-19 01:10:01,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196316408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:01,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:01,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536222100] [2024-11-19 01:10:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:01,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:01,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:01,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:01,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:01,618 INFO L87 Difference]: Start difference. First operand 410 states and 543 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:01,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:01,813 INFO L93 Difference]: Finished difference Result 784 states and 1034 transitions. [2024-11-19 01:10:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:01,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-19 01:10:01,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:01,815 INFO L225 Difference]: With dead ends: 784 [2024-11-19 01:10:01,815 INFO L226 Difference]: Without dead ends: 377 [2024-11-19 01:10:01,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:01,816 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 76 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:01,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 318 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-19 01:10:01,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 374. [2024-11-19 01:10:01,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 328 states have (on average 1.271341463414634) internal successors, (417), 331 states have internal predecessors, (417), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:10:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 489 transitions. [2024-11-19 01:10:01,838 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 489 transitions. Word has length 116 [2024-11-19 01:10:01,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:01,839 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 489 transitions. [2024-11-19 01:10:01,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 489 transitions. [2024-11-19 01:10:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 01:10:01,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:01,840 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:01,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:10:01,840 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:01,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1715964076, now seen corresponding path program 1 times [2024-11-19 01:10:01,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:01,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265237024] [2024-11-19 01:10:01,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:01,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:03,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:03,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265237024] [2024-11-19 01:10:03,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265237024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:03,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:03,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:10:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824576689] [2024-11-19 01:10:03,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:03,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:10:03,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:10:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:03,082 INFO L87 Difference]: Start difference. First operand 374 states and 489 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:10:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:04,083 INFO L93 Difference]: Finished difference Result 513 states and 661 transitions. [2024-11-19 01:10:04,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 01:10:04,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2024-11-19 01:10:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:04,086 INFO L225 Difference]: With dead ends: 513 [2024-11-19 01:10:04,086 INFO L226 Difference]: Without dead ends: 511 [2024-11-19 01:10:04,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2024-11-19 01:10:04,087 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 222 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:04,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 702 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:10:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-19 01:10:04,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 389. [2024-11-19 01:10:04,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 343 states have (on average 1.2594752186588922) internal successors, (432), 346 states have internal predecessors, (432), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:10:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 504 transitions. [2024-11-19 01:10:04,116 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 504 transitions. Word has length 117 [2024-11-19 01:10:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:04,116 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 504 transitions. [2024-11-19 01:10:04,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:10:04,116 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 504 transitions. [2024-11-19 01:10:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 01:10:04,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:04,117 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:04,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:10:04,118 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:04,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:04,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1717811118, now seen corresponding path program 1 times [2024-11-19 01:10:04,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:04,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033372187] [2024-11-19 01:10:04,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:04,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:04,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:04,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033372187] [2024-11-19 01:10:04,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033372187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:04,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:04,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:10:04,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856169640] [2024-11-19 01:10:04,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:04,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:10:04,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:04,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:10:04,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:04,707 INFO L87 Difference]: Start difference. First operand 389 states and 504 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:05,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:05,082 INFO L93 Difference]: Finished difference Result 821 states and 1058 transitions. [2024-11-19 01:10:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:10:05,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-19 01:10:05,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:05,085 INFO L225 Difference]: With dead ends: 821 [2024-11-19 01:10:05,085 INFO L226 Difference]: Without dead ends: 435 [2024-11-19 01:10:05,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:10:05,087 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 84 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:05,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 419 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:10:05,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-19 01:10:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 434. [2024-11-19 01:10:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 371 states have (on average 1.2264150943396226) internal successors, (455), 375 states have internal predecessors, (455), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-19 01:10:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 551 transitions. [2024-11-19 01:10:05,133 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 551 transitions. Word has length 117 [2024-11-19 01:10:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:05,133 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 551 transitions. [2024-11-19 01:10:05,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 551 transitions. [2024-11-19 01:10:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 01:10:05,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:05,134 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:05,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 01:10:05,135 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:05,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash -802148816, now seen corresponding path program 1 times [2024-11-19 01:10:05,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:05,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617398217] [2024-11-19 01:10:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:05,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:05,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:05,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617398217] [2024-11-19 01:10:05,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617398217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:05,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:05,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:10:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709123069] [2024-11-19 01:10:05,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:05,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:10:05,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:05,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:10:05,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:05,923 INFO L87 Difference]: Start difference. First operand 434 states and 551 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:06,168 INFO L93 Difference]: Finished difference Result 783 states and 994 transitions. [2024-11-19 01:10:06,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:10:06,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-19 01:10:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:06,171 INFO L225 Difference]: With dead ends: 783 [2024-11-19 01:10:06,171 INFO L226 Difference]: Without dead ends: 518 [2024-11-19 01:10:06,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:10:06,172 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 37 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:06,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 513 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-19 01:10:06,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 476. [2024-11-19 01:10:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 413 states have (on average 1.2276029055690072) internal successors, (507), 417 states have internal predecessors, (507), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-19 01:10:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 603 transitions. [2024-11-19 01:10:06,213 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 603 transitions. Word has length 117 [2024-11-19 01:10:06,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:06,213 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 603 transitions. [2024-11-19 01:10:06,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 603 transitions. [2024-11-19 01:10:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 01:10:06,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:06,215 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:06,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 01:10:06,216 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:06,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1112340812, now seen corresponding path program 1 times [2024-11-19 01:10:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273902473] [2024-11-19 01:10:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:06,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:06,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:06,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273902473] [2024-11-19 01:10:06,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273902473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:06,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:06,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:10:06,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581990435] [2024-11-19 01:10:06,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:06,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:10:06,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:06,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:10:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:06,638 INFO L87 Difference]: Start difference. First operand 476 states and 603 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:07,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:07,211 INFO L93 Difference]: Finished difference Result 961 states and 1217 transitions. [2024-11-19 01:10:07,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:10:07,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-19 01:10:07,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:07,216 INFO L225 Difference]: With dead ends: 961 [2024-11-19 01:10:07,216 INFO L226 Difference]: Without dead ends: 659 [2024-11-19 01:10:07,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:10:07,217 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 217 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:07,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 404 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:07,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-19 01:10:07,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 494. [2024-11-19 01:10:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 428 states have (on average 1.219626168224299) internal successors, (522), 432 states have internal predecessors, (522), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 622 transitions. [2024-11-19 01:10:07,263 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 622 transitions. Word has length 118 [2024-11-19 01:10:07,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:07,263 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 622 transitions. [2024-11-19 01:10:07,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 622 transitions. [2024-11-19 01:10:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 01:10:07,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:07,264 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:07,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 01:10:07,264 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:07,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash -881803894, now seen corresponding path program 1 times [2024-11-19 01:10:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:07,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25297558] [2024-11-19 01:10:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:07,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:07,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25297558] [2024-11-19 01:10:07,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25297558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:07,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:07,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:10:07,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850628207] [2024-11-19 01:10:07,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:07,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:10:07,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:10:07,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:07,774 INFO L87 Difference]: Start difference. First operand 494 states and 622 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:08,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:08,283 INFO L93 Difference]: Finished difference Result 932 states and 1177 transitions. [2024-11-19 01:10:08,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:10:08,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-19 01:10:08,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:08,286 INFO L225 Difference]: With dead ends: 932 [2024-11-19 01:10:08,286 INFO L226 Difference]: Without dead ends: 630 [2024-11-19 01:10:08,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:10:08,287 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 200 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:08,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 475 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:08,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-19 01:10:08,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 494. [2024-11-19 01:10:08,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 428 states have (on average 1.2149532710280373) internal successors, (520), 432 states have internal predecessors, (520), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 620 transitions. [2024-11-19 01:10:08,330 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 620 transitions. Word has length 118 [2024-11-19 01:10:08,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:08,330 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 620 transitions. [2024-11-19 01:10:08,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 620 transitions. [2024-11-19 01:10:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 01:10:08,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:08,331 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:08,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 01:10:08,331 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:08,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:08,332 INFO L85 PathProgramCache]: Analyzing trace with hash -284663722, now seen corresponding path program 1 times [2024-11-19 01:10:08,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:08,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207318562] [2024-11-19 01:10:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:08,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:08,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:08,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207318562] [2024-11-19 01:10:08,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207318562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:08,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:08,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:10:08,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870740727] [2024-11-19 01:10:08,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:08,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:10:08,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:08,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:10:08,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:08,758 INFO L87 Difference]: Start difference. First operand 494 states and 620 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:09,236 INFO L93 Difference]: Finished difference Result 930 states and 1173 transitions. [2024-11-19 01:10:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:10:09,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-19 01:10:09,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:09,242 INFO L225 Difference]: With dead ends: 930 [2024-11-19 01:10:09,242 INFO L226 Difference]: Without dead ends: 622 [2024-11-19 01:10:09,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:10:09,244 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 171 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:09,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 457 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:09,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-19 01:10:09,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 488. [2024-11-19 01:10:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 422 states have (on average 1.2109004739336493) internal successors, (511), 426 states have internal predecessors, (511), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 611 transitions. [2024-11-19 01:10:09,286 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 611 transitions. Word has length 118 [2024-11-19 01:10:09,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:09,286 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 611 transitions. [2024-11-19 01:10:09,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 611 transitions. [2024-11-19 01:10:09,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 01:10:09,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:09,287 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:09,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 01:10:09,287 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:09,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:09,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1564527400, now seen corresponding path program 1 times [2024-11-19 01:10:09,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:09,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778923466] [2024-11-19 01:10:09,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:09,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:09,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778923466] [2024-11-19 01:10:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778923466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:09,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:09,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:10:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686708859] [2024-11-19 01:10:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:09,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:10:09,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:10:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:09,711 INFO L87 Difference]: Start difference. First operand 488 states and 611 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:10,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:10,186 INFO L93 Difference]: Finished difference Result 926 states and 1166 transitions. [2024-11-19 01:10:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:10:10,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-19 01:10:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:10,192 INFO L225 Difference]: With dead ends: 926 [2024-11-19 01:10:10,192 INFO L226 Difference]: Without dead ends: 624 [2024-11-19 01:10:10,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:10:10,193 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 263 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:10,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 416 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:10,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-19 01:10:10,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 494. [2024-11-19 01:10:10,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 428 states have (on average 1.2079439252336448) internal successors, (517), 432 states have internal predecessors, (517), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:10,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 617 transitions. [2024-11-19 01:10:10,233 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 617 transitions. Word has length 118 [2024-11-19 01:10:10,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:10,234 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 617 transitions. [2024-11-19 01:10:10,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 617 transitions. [2024-11-19 01:10:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 01:10:10,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:10,234 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:10,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 01:10:10,235 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:10,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:10,235 INFO L85 PathProgramCache]: Analyzing trace with hash 295231944, now seen corresponding path program 1 times [2024-11-19 01:10:10,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:10,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864577418] [2024-11-19 01:10:10,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:10,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:10,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:10,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864577418] [2024-11-19 01:10:10,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864577418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:10,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:10,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:10:10,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375210722] [2024-11-19 01:10:10,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:10,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:10:10,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:10,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:10:10,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:10,977 INFO L87 Difference]: Start difference. First operand 494 states and 617 transitions. Second operand has 8 states, 5 states have (on average 10.4) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-19 01:10:11,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:11,341 INFO L93 Difference]: Finished difference Result 854 states and 1070 transitions. [2024-11-19 01:10:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:10:11,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 10.4) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 119 [2024-11-19 01:10:11,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:11,344 INFO L225 Difference]: With dead ends: 854 [2024-11-19 01:10:11,345 INFO L226 Difference]: Without dead ends: 552 [2024-11-19 01:10:11,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:10:11,346 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 45 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:11,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 521 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:10:11,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-19 01:10:11,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 462. [2024-11-19 01:10:11,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 396 states have (on average 1.196969696969697) internal successors, (474), 400 states have internal predecessors, (474), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 574 transitions. [2024-11-19 01:10:11,398 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 574 transitions. Word has length 119 [2024-11-19 01:10:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:11,398 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 574 transitions. [2024-11-19 01:10:11,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 10.4) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-19 01:10:11,398 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 574 transitions. [2024-11-19 01:10:11,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 01:10:11,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:11,399 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:11,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 01:10:11,399 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:11,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1968577794, now seen corresponding path program 1 times [2024-11-19 01:10:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:11,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235505888] [2024-11-19 01:10:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:11,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:11,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:11,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235505888] [2024-11-19 01:10:11,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235505888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:11,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:11,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:10:11,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262761876] [2024-11-19 01:10:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:11,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:10:11,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:11,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:10:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:10:11,442 INFO L87 Difference]: Start difference. First operand 462 states and 574 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:11,489 INFO L93 Difference]: Finished difference Result 881 states and 1100 transitions. [2024-11-19 01:10:11,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:10:11,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-19 01:10:11,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:11,493 INFO L225 Difference]: With dead ends: 881 [2024-11-19 01:10:11,493 INFO L226 Difference]: Without dead ends: 467 [2024-11-19 01:10:11,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:10:11,496 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:11,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 225 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:10:11,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-19 01:10:11,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-19 01:10:11,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 401 states have (on average 1.1945137157107233) internal successors, (479), 405 states have internal predecessors, (479), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:11,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 579 transitions. [2024-11-19 01:10:11,558 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 579 transitions. Word has length 119 [2024-11-19 01:10:11,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:11,558 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 579 transitions. [2024-11-19 01:10:11,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:11,559 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 579 transitions. [2024-11-19 01:10:11,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 01:10:11,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:11,559 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:11,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 01:10:11,560 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:11,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:11,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1267513216, now seen corresponding path program 1 times [2024-11-19 01:10:11,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:11,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430414002] [2024-11-19 01:10:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:11,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:11,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430414002] [2024-11-19 01:10:11,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430414002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:11,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:11,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:10:11,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617383816] [2024-11-19 01:10:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:11,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:10:11,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:11,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:10:11,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:10:11,705 INFO L87 Difference]: Start difference. First operand 467 states and 579 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:11,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:11,855 INFO L93 Difference]: Finished difference Result 953 states and 1179 transitions. [2024-11-19 01:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:10:11,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-19 01:10:11,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:11,858 INFO L225 Difference]: With dead ends: 953 [2024-11-19 01:10:11,859 INFO L226 Difference]: Without dead ends: 534 [2024-11-19 01:10:11,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:11,860 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 62 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:11,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 271 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:10:11,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-19 01:10:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 464. [2024-11-19 01:10:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 398 states have (on average 1.1884422110552764) internal successors, (473), 402 states have internal predecessors, (473), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:11,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 573 transitions. [2024-11-19 01:10:11,911 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 573 transitions. Word has length 119 [2024-11-19 01:10:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:11,912 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 573 transitions. [2024-11-19 01:10:11,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 573 transitions. [2024-11-19 01:10:11,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 01:10:11,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:11,913 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:11,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 01:10:11,913 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:11,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:11,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2068224064, now seen corresponding path program 1 times [2024-11-19 01:10:11,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:11,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037258763] [2024-11-19 01:10:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:12,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:12,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037258763] [2024-11-19 01:10:12,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037258763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:12,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:12,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:10:12,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573445059] [2024-11-19 01:10:12,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:12,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:10:12,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:10:12,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:12,254 INFO L87 Difference]: Start difference. First operand 464 states and 573 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:12,500 INFO L93 Difference]: Finished difference Result 1046 states and 1289 transitions. [2024-11-19 01:10:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:12,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-19 01:10:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:12,506 INFO L225 Difference]: With dead ends: 1046 [2024-11-19 01:10:12,506 INFO L226 Difference]: Without dead ends: 630 [2024-11-19 01:10:12,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:10:12,508 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 137 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:12,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 289 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:12,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-19 01:10:12,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 569. [2024-11-19 01:10:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 503 states have (on average 1.202783300198807) internal successors, (605), 506 states have internal predecessors, (605), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 705 transitions. [2024-11-19 01:10:12,563 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 705 transitions. Word has length 119 [2024-11-19 01:10:12,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:12,563 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 705 transitions. [2024-11-19 01:10:12,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 705 transitions. [2024-11-19 01:10:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 01:10:12,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:12,564 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:12,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 01:10:12,564 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:12,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1525678654, now seen corresponding path program 1 times [2024-11-19 01:10:12,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:12,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840672712] [2024-11-19 01:10:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:13,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:13,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840672712] [2024-11-19 01:10:13,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840672712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:13,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:13,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:10:13,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272447517] [2024-11-19 01:10:13,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:13,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:10:13,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:13,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:10:13,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:13,171 INFO L87 Difference]: Start difference. First operand 569 states and 705 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:13,589 INFO L93 Difference]: Finished difference Result 1096 states and 1348 transitions. [2024-11-19 01:10:13,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:10:13,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-19 01:10:13,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:13,593 INFO L225 Difference]: With dead ends: 1096 [2024-11-19 01:10:13,593 INFO L226 Difference]: Without dead ends: 680 [2024-11-19 01:10:13,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:10:13,595 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 127 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:13,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 681 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:10:13,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-11-19 01:10:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 597. [2024-11-19 01:10:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 531 states have (on average 1.1939736346516008) internal successors, (634), 534 states have internal predecessors, (634), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:13,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 734 transitions. [2024-11-19 01:10:13,642 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 734 transitions. Word has length 119 [2024-11-19 01:10:13,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:13,642 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 734 transitions. [2024-11-19 01:10:13,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-19 01:10:13,643 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 734 transitions. [2024-11-19 01:10:13,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 01:10:13,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:13,643 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:13,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 01:10:13,643 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:13,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:13,644 INFO L85 PathProgramCache]: Analyzing trace with hash -279759680, now seen corresponding path program 1 times [2024-11-19 01:10:13,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:13,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486516765] [2024-11-19 01:10:13,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:13,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:14,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:14,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486516765] [2024-11-19 01:10:14,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486516765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:14,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:14,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:10:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493888876] [2024-11-19 01:10:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:14,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:10:14,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:14,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:10:14,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:14,041 INFO L87 Difference]: Start difference. First operand 597 states and 734 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:14,362 INFO L93 Difference]: Finished difference Result 1114 states and 1359 transitions. [2024-11-19 01:10:14,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:14,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-19 01:10:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:14,365 INFO L225 Difference]: With dead ends: 1114 [2024-11-19 01:10:14,365 INFO L226 Difference]: Without dead ends: 639 [2024-11-19 01:10:14,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:10:14,367 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 94 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:14,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 353 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:14,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-19 01:10:14,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 585. [2024-11-19 01:10:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 519 states have (on average 1.1907514450867052) internal successors, (618), 522 states have internal predecessors, (618), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-19 01:10:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 718 transitions. [2024-11-19 01:10:14,418 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 718 transitions. Word has length 119 [2024-11-19 01:10:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:14,419 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 718 transitions. [2024-11-19 01:10:14,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 01:10:14,419 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 718 transitions. [2024-11-19 01:10:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 01:10:14,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:14,420 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:14,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 01:10:14,420 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:14,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 504691498, now seen corresponding path program 1 times [2024-11-19 01:10:14,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:14,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645222277] [2024-11-19 01:10:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:14,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:15,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:15,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645222277] [2024-11-19 01:10:15,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645222277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:15,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:15,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:10:15,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070217473] [2024-11-19 01:10:15,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:15,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:10:15,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:15,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:10:15,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:15,123 INFO L87 Difference]: Start difference. First operand 585 states and 718 transitions. Second operand has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:10:15,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:15,368 INFO L93 Difference]: Finished difference Result 856 states and 1051 transitions. [2024-11-19 01:10:15,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:10:15,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-19 01:10:15,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:15,371 INFO L225 Difference]: With dead ends: 856 [2024-11-19 01:10:15,371 INFO L226 Difference]: Without dead ends: 578 [2024-11-19 01:10:15,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:15,372 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 37 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:15,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 452 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:15,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-19 01:10:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 507. [2024-11-19 01:10:15,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 445 states have (on average 1.1887640449438202) internal successors, (529), 446 states have internal predecessors, (529), 46 states have call successors, (46), 15 states have call predecessors, (46), 15 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 01:10:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 621 transitions. [2024-11-19 01:10:15,414 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 621 transitions. Word has length 120 [2024-11-19 01:10:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:15,415 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 621 transitions. [2024-11-19 01:10:15,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 01:10:15,415 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 621 transitions. [2024-11-19 01:10:15,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 01:10:15,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:15,416 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:15,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 01:10:15,416 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:15,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:15,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1079383721, now seen corresponding path program 1 times [2024-11-19 01:10:15,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:15,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061984063] [2024-11-19 01:10:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:15,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:18,054 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:18,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:18,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061984063] [2024-11-19 01:10:18,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061984063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:18,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:18,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-19 01:10:18,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111849107] [2024-11-19 01:10:18,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:18,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-19 01:10:18,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:18,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-19 01:10:18,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:10:18,056 INFO L87 Difference]: Start difference. First operand 507 states and 621 transitions. Second operand has 22 states, 18 states have (on average 3.0) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-19 01:10:56,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:56,148 INFO L93 Difference]: Finished difference Result 1128 states and 1384 transitions. [2024-11-19 01:10:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-19 01:10:56,149 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 3.0) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 121 [2024-11-19 01:10:56,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:56,152 INFO L225 Difference]: With dead ends: 1128 [2024-11-19 01:10:56,152 INFO L226 Difference]: Without dead ends: 898 [2024-11-19 01:10:56,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 35.0s TimeCoverageRelationStatistics Valid=235, Invalid=1925, Unknown=2, NotChecked=0, Total=2162 [2024-11-19 01:10:56,155 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 343 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:56,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1598 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-19 01:10:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-19 01:10:56,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 630. [2024-11-19 01:10:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 551 states have (on average 1.1833030852994555) internal successors, (652), 554 states have internal predecessors, (652), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:10:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 768 transitions. [2024-11-19 01:10:56,271 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 768 transitions. Word has length 121 [2024-11-19 01:10:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:56,271 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 768 transitions. [2024-11-19 01:10:56,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 3.0) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-19 01:10:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 768 transitions. [2024-11-19 01:10:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 01:10:56,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:56,272 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:56,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 01:10:56,272 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:56,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1642634157, now seen corresponding path program 1 times [2024-11-19 01:10:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:56,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303640947] [2024-11-19 01:10:56,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:57,777 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 01:10:57,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:57,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303640947] [2024-11-19 01:10:57,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303640947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:57,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:57,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-19 01:10:57,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140605411] [2024-11-19 01:10:57,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:57,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 01:10:57,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:57,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 01:10:57,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2024-11-19 01:10:57,778 INFO L87 Difference]: Start difference. First operand 630 states and 768 transitions. Second operand has 20 states, 16 states have (on average 3.375) internal successors, (54), 20 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14)