./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.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-sp_file-27.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 cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:15:45,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:15:45,959 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:15:45,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:15:45,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:15:46,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:15:46,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:15:46,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:15:46,012 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:15:46,013 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:15:46,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:15:46,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:15:46,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:15:46,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:15:46,015 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:15:46,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:15:46,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:15:46,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:15:46,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:15:46,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:15:46,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:15:46,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:15:46,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:15:46,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:15:46,023 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:15:46,023 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:15:46,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:15:46,024 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:15:46,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:15:46,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:15:46,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:15:46,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:15:46,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:15:46,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:15:46,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:15:46,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:15:46,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:15:46,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:15:46,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:15:46,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:15:46,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:15:46,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:15:46,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 [2024-11-19 01:15:46,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:15:46,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:15:46,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:15:46,318 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:15:46,318 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:15:46,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-11-19 01:15:47,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:15:47,998 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:15:47,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-11-19 01:15:48,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9db531f4/bcc4c8874ddc4f5ca912d4501de7a2e0/FLAG04e3d4b26 [2024-11-19 01:15:48,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9db531f4/bcc4c8874ddc4f5ca912d4501de7a2e0 [2024-11-19 01:15:48,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:15:48,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:15:48,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:15:48,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:15:48,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:15:48,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102abb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48, skipping insertion in model container [2024-11-19 01:15:48,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,414 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:15:48,618 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i[917,930] [2024-11-19 01:15:48,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:15:48,683 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:15:48,695 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i[917,930] [2024-11-19 01:15:48,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:15:48,747 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:15:48,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48 WrapperNode [2024-11-19 01:15:48,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:15:48,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:15:48,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:15:48,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:15:48,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,804 INFO L138 Inliner]: procedures = 27, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 440 [2024-11-19 01:15:48,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:15:48,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:15:48,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:15:48,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:15:48,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,853 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 01:15:48,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:15:48,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:15:48,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:15:48,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:15:48,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (1/1) ... [2024-11-19 01:15:48,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:15:48,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:15:48,938 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 01:15:48,946 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 01:15:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:15:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 01:15:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 01:15:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:15:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:15:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:15:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:15:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:15:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:15:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:15:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:15:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:15:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:15:49,138 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:15:49,140 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:15:49,636 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-19 01:15:49,636 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:15:49,659 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:15:49,659 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:15:49,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:15:49 BoogieIcfgContainer [2024-11-19 01:15:49,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:15:49,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:15:49,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:15:49,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:15:49,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:15:48" (1/3) ... [2024-11-19 01:15:49,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9915be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:15:49, skipping insertion in model container [2024-11-19 01:15:49,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:15:48" (2/3) ... [2024-11-19 01:15:49,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9915be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:15:49, skipping insertion in model container [2024-11-19 01:15:49,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:15:49" (3/3) ... [2024-11-19 01:15:49,674 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-27.i [2024-11-19 01:15:49,692 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:15:49,693 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:15:49,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:15:49,768 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;@249225e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:15:49,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:15:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:15:49,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 01:15:49,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:15:49,789 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:15:49,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:15:49,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:15:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash -669687425, now seen corresponding path program 1 times [2024-11-19 01:15:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:15:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945484532] [2024-11-19 01:15:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:15:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:15:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:15:50,163 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 01:15:50,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:15:50,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945484532] [2024-11-19 01:15:50,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945484532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:15:50,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134665423] [2024-11-19 01:15:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:15:50,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:15:50,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:15:50,174 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 01:15:50,177 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 01:15:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:15:50,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:15:50,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:15:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 01:15:50,489 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:15:50,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134665423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:15:50,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:15:50,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:15:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779274902] [2024-11-19 01:15:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:15:50,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:15:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:15:50,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:15:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:15:50,523 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:15:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:15:50,555 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-19 01:15:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:15:50,557 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-19 01:15:50,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:15:50,564 INFO L225 Difference]: With dead ends: 181 [2024-11-19 01:15:50,564 INFO L226 Difference]: Without dead ends: 90 [2024-11-19 01:15:50,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:15:50,570 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:15:50,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:15:50,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-19 01:15:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-19 01:15:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:15:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-19 01:15:50,610 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-19 01:15:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:15:50,611 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-19 01:15:50,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:15:50,612 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-19 01:15:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 01:15:50,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:15:50,616 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:15:50,635 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 01:15:50,816 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,SelfDestructingSolverStorable0 [2024-11-19 01:15:50,817 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:15:50,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:15:50,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1314658275, now seen corresponding path program 1 times [2024-11-19 01:15:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:15:50,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156857431] [2024-11-19 01:15:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:15:50,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:15:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:15:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:15:54,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:15:54,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156857431] [2024-11-19 01:15:54,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156857431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:15:54,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:15:54,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:15:54,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284272730] [2024-11-19 01:15:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:15:54,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:15:54,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:15:54,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:15:54,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:15:54,466 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:15:55,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:15:55,370 INFO L93 Difference]: Finished difference Result 216 states and 311 transitions. [2024-11-19 01:15:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:15:55,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 131 [2024-11-19 01:15:55,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:15:55,373 INFO L225 Difference]: With dead ends: 216 [2024-11-19 01:15:55,373 INFO L226 Difference]: Without dead ends: 129 [2024-11-19 01:15:55,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:15:55,375 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 400 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:15:55,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 412 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:15:55,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-19 01:15:55,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 99. [2024-11-19 01:15:55,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.35) internal successors, (108), 80 states have internal predecessors, (108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:15:55,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2024-11-19 01:15:55,405 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 142 transitions. Word has length 131 [2024-11-19 01:15:55,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:15:55,407 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 142 transitions. [2024-11-19 01:15:55,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:15:55,407 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 142 transitions. [2024-11-19 01:15:55,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:15:55,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:15:55,411 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:15:55,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:15:55,411 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:15:55,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:15:55,412 INFO L85 PathProgramCache]: Analyzing trace with hash -674347784, now seen corresponding path program 1 times [2024-11-19 01:15:55,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:15:55,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737329729] [2024-11-19 01:15:55,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:15:55,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:15:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:15:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:15:57,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:15:57,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737329729] [2024-11-19 01:15:57,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737329729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:15:57,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:15:57,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:15:57,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011844351] [2024-11-19 01:15:57,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:15:57,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:15:57,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:15:57,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:15:57,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:15:57,148 INFO L87 Difference]: Start difference. First operand 99 states and 142 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:15:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:15:57,602 INFO L93 Difference]: Finished difference Result 289 states and 418 transitions. [2024-11-19 01:15:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:15:57,603 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), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-11-19 01:15:57,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:15:57,607 INFO L225 Difference]: With dead ends: 289 [2024-11-19 01:15:57,608 INFO L226 Difference]: Without dead ends: 193 [2024-11-19 01:15:57,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:15:57,610 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 272 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:15:57,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 349 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:15:57,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-19 01:15:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2024-11-19 01:15:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 145 states have internal predecessors, (195), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:15:57,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 263 transitions. [2024-11-19 01:15:57,651 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 263 transitions. Word has length 133 [2024-11-19 01:15:57,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:15:57,652 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 263 transitions. [2024-11-19 01:15:57,652 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), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:15:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 263 transitions. [2024-11-19 01:15:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:15:57,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:15:57,654 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:15:57,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:15:57,655 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:15:57,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:15:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash 719608, now seen corresponding path program 1 times [2024-11-19 01:15:57,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:15:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695840345] [2024-11-19 01:15:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:15:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:15:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:15:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:15:58,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:15:58,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695840345] [2024-11-19 01:15:58,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695840345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:15:58,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:15:58,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:15:58,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164877168] [2024-11-19 01:15:58,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:15:58,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:15:58,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:15:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:15:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:15:58,736 INFO L87 Difference]: Start difference. First operand 182 states and 263 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:15:59,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:15:59,048 INFO L93 Difference]: Finished difference Result 413 states and 598 transitions. [2024-11-19 01:15:59,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:15:59,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-11-19 01:15:59,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:15:59,054 INFO L225 Difference]: With dead ends: 413 [2024-11-19 01:15:59,054 INFO L226 Difference]: Without dead ends: 234 [2024-11-19 01:15:59,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:15:59,060 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 40 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:15:59,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 392 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:15:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-19 01:15:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2024-11-19 01:15:59,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 175 states have (on average 1.3085714285714285) internal successors, (229), 175 states have internal predecessors, (229), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:15:59,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 331 transitions. [2024-11-19 01:15:59,141 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 331 transitions. Word has length 133 [2024-11-19 01:15:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:15:59,143 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 331 transitions. [2024-11-19 01:15:59,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:15:59,143 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 331 transitions. [2024-11-19 01:15:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:15:59,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:15:59,149 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:15:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:15:59,150 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:15:59,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:15:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1097049610, now seen corresponding path program 1 times [2024-11-19 01:15:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:15:59,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073850657] [2024-11-19 01:15:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:15:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:15:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:15:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:15:59,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:15:59,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073850657] [2024-11-19 01:15:59,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073850657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:15:59,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:15:59,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:15:59,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810573952] [2024-11-19 01:15:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:15:59,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:15:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:15:59,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:15:59,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:15:59,787 INFO L87 Difference]: Start difference. First operand 230 states and 331 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:00,293 INFO L93 Difference]: Finished difference Result 391 states and 563 transitions. [2024-11-19 01:16:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:00,294 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-19 01:16:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:00,297 INFO L225 Difference]: With dead ends: 391 [2024-11-19 01:16:00,297 INFO L226 Difference]: Without dead ends: 295 [2024-11-19 01:16:00,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:16:00,298 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 127 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:00,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 426 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:16:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-19 01:16:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 230. [2024-11-19 01:16:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 175 states have (on average 1.302857142857143) internal successors, (228), 175 states have internal predecessors, (228), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:16:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 330 transitions. [2024-11-19 01:16:00,340 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 330 transitions. Word has length 133 [2024-11-19 01:16:00,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:00,340 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 330 transitions. [2024-11-19 01:16:00,341 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:00,341 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 330 transitions. [2024-11-19 01:16:00,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:16:00,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:00,342 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:00,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:16:00,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:00,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:00,343 INFO L85 PathProgramCache]: Analyzing trace with hash -421982218, now seen corresponding path program 1 times [2024-11-19 01:16:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:00,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084287212] [2024-11-19 01:16:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:00,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:04,889 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:04,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:04,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084287212] [2024-11-19 01:16:04,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084287212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:04,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:04,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 01:16:04,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704928573] [2024-11-19 01:16:04,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:04,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 01:16:04,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:04,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 01:16:04,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:16:04,897 INFO L87 Difference]: Start difference. First operand 230 states and 330 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:06,626 INFO L93 Difference]: Finished difference Result 372 states and 534 transitions. [2024-11-19 01:16:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:16:06,627 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 133 [2024-11-19 01:16:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:06,629 INFO L225 Difference]: With dead ends: 372 [2024-11-19 01:16:06,629 INFO L226 Difference]: Without dead ends: 276 [2024-11-19 01:16:06,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-11-19 01:16:06,631 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 389 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:06,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 402 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 01:16:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-19 01:16:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 240. [2024-11-19 01:16:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 185 states have (on average 1.3135135135135134) internal successors, (243), 185 states have internal predecessors, (243), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:16:06,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 345 transitions. [2024-11-19 01:16:06,682 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 345 transitions. Word has length 133 [2024-11-19 01:16:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:06,682 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 345 transitions. [2024-11-19 01:16:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 345 transitions. [2024-11-19 01:16:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:16:06,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:06,684 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:06,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:16:06,685 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:06,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:06,685 INFO L85 PathProgramCache]: Analyzing trace with hash -163816780, now seen corresponding path program 1 times [2024-11-19 01:16:06,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:06,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600777311] [2024-11-19 01:16:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:07,188 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:07,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:07,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600777311] [2024-11-19 01:16:07,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600777311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:07,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:07,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:16:07,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530016967] [2024-11-19 01:16:07,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:07,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:16:07,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:07,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:16:07,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:16:07,191 INFO L87 Difference]: Start difference. First operand 240 states and 345 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:07,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:07,504 INFO L93 Difference]: Finished difference Result 461 states and 664 transitions. [2024-11-19 01:16:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:07,508 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-19 01:16:07,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:07,511 INFO L225 Difference]: With dead ends: 461 [2024-11-19 01:16:07,511 INFO L226 Difference]: Without dead ends: 265 [2024-11-19 01:16:07,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:16:07,514 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 206 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:07,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 294 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:16:07,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-19 01:16:07,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 182. [2024-11-19 01:16:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.3241379310344827) internal successors, (192), 145 states have internal predecessors, (192), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 260 transitions. [2024-11-19 01:16:07,546 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 260 transitions. Word has length 133 [2024-11-19 01:16:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:07,547 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 260 transitions. [2024-11-19 01:16:07,547 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 260 transitions. [2024-11-19 01:16:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:16:07,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:07,550 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:07,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:16:07,551 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:07,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:07,552 INFO L85 PathProgramCache]: Analyzing trace with hash -927195155, now seen corresponding path program 1 times [2024-11-19 01:16:07,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:07,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397213984] [2024-11-19 01:16:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:07,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:07,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:07,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397213984] [2024-11-19 01:16:07,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397213984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:07,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:07,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:16:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69756850] [2024-11-19 01:16:07,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:07,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:16:07,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:16:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:16:07,615 INFO L87 Difference]: Start difference. First operand 182 states and 260 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:07,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:07,652 INFO L93 Difference]: Finished difference Result 363 states and 521 transitions. [2024-11-19 01:16:07,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:16:07,653 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-19 01:16:07,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:07,655 INFO L225 Difference]: With dead ends: 363 [2024-11-19 01:16:07,655 INFO L226 Difference]: Without dead ends: 184 [2024-11-19 01:16:07,655 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 01:16:07,656 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 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 01:16:07,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:07,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-19 01:16:07,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-19 01:16:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 147 states have (on average 1.3197278911564625) internal successors, (194), 147 states have internal predecessors, (194), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 262 transitions. [2024-11-19 01:16:07,701 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 262 transitions. Word has length 134 [2024-11-19 01:16:07,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:07,702 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 262 transitions. [2024-11-19 01:16:07,702 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:07,703 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 262 transitions. [2024-11-19 01:16:07,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:16:07,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:07,704 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:07,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:16:07,705 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:07,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:07,707 INFO L85 PathProgramCache]: Analyzing trace with hash -534168145, now seen corresponding path program 1 times [2024-11-19 01:16:07,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:07,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689409807] [2024-11-19 01:16:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:07,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689409807] [2024-11-19 01:16:09,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689409807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:09,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:09,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:16:09,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507395413] [2024-11-19 01:16:09,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:09,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:16:09,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:09,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:16:09,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:16:09,114 INFO L87 Difference]: Start difference. First operand 184 states and 262 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:09,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:09,669 INFO L93 Difference]: Finished difference Result 398 states and 573 transitions. [2024-11-19 01:16:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-11-19 01:16:09,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:09,672 INFO L225 Difference]: With dead ends: 398 [2024-11-19 01:16:09,672 INFO L226 Difference]: Without dead ends: 217 [2024-11-19 01:16:09,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:16:09,674 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 175 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:09,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 249 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:16:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-19 01:16:09,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2024-11-19 01:16:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 177 states have (on average 1.3389830508474576) internal successors, (237), 177 states have internal predecessors, (237), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:09,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 305 transitions. [2024-11-19 01:16:09,711 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 305 transitions. Word has length 134 [2024-11-19 01:16:09,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:09,712 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 305 transitions. [2024-11-19 01:16:09,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:09,712 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 305 transitions. [2024-11-19 01:16:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:16:09,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:09,713 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:09,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:16:09,713 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:09,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash -472128531, now seen corresponding path program 1 times [2024-11-19 01:16:09,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:09,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861556368] [2024-11-19 01:16:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:09,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:10,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:10,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861556368] [2024-11-19 01:16:10,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861556368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:10,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:16:10,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24828186] [2024-11-19 01:16:10,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:10,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:16:10,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:16:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:16:10,598 INFO L87 Difference]: Start difference. First operand 214 states and 305 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:11,088 INFO L93 Difference]: Finished difference Result 371 states and 528 transitions. [2024-11-19 01:16:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:11,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-11-19 01:16:11,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:11,091 INFO L225 Difference]: With dead ends: 371 [2024-11-19 01:16:11,091 INFO L226 Difference]: Without dead ends: 256 [2024-11-19 01:16:11,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:16:11,092 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 159 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:11,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 287 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:16:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-19 01:16:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 241. [2024-11-19 01:16:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 196 states have internal predecessors, (255), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:11,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 339 transitions. [2024-11-19 01:16:11,135 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 339 transitions. Word has length 134 [2024-11-19 01:16:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:11,136 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 339 transitions. [2024-11-19 01:16:11,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 339 transitions. [2024-11-19 01:16:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:11,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:11,137 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:11,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:16:11,137 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:11,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1708220221, now seen corresponding path program 1 times [2024-11-19 01:16:11,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045104006] [2024-11-19 01:16:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:11,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:14,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:14,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045104006] [2024-11-19 01:16:14,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045104006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:14,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:14,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:16:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838890304] [2024-11-19 01:16:14,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:14,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:16:14,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:16:14,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:16:14,867 INFO L87 Difference]: Start difference. First operand 241 states and 339 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:15,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:15,911 INFO L93 Difference]: Finished difference Result 589 states and 829 transitions. [2024-11-19 01:16:15,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:16:15,911 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-19 01:16:15,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:15,915 INFO L225 Difference]: With dead ends: 589 [2024-11-19 01:16:15,915 INFO L226 Difference]: Without dead ends: 372 [2024-11-19 01:16:15,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-19 01:16:15,917 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 221 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:15,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 389 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:16:15,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-19 01:16:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 322. [2024-11-19 01:16:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 276 states have (on average 1.326086956521739) internal successors, (366), 277 states have internal predecessors, (366), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 450 transitions. [2024-11-19 01:16:15,969 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 450 transitions. Word has length 135 [2024-11-19 01:16:15,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:15,970 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 450 transitions. [2024-11-19 01:16:15,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 450 transitions. [2024-11-19 01:16:15,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:15,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:15,972 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:15,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:16:15,972 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:15,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:15,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1212961131, now seen corresponding path program 1 times [2024-11-19 01:16:15,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:15,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837461257] [2024-11-19 01:16:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:15,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:18,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:18,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837461257] [2024-11-19 01:16:18,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837461257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:18,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:18,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:16:18,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852452827] [2024-11-19 01:16:18,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:18,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:16:18,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:18,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:16:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:18,264 INFO L87 Difference]: Start difference. First operand 322 states and 450 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:19,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:19,392 INFO L93 Difference]: Finished difference Result 764 states and 1066 transitions. [2024-11-19 01:16:19,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:16:19,393 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-19 01:16:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:19,395 INFO L225 Difference]: With dead ends: 764 [2024-11-19 01:16:19,395 INFO L226 Difference]: Without dead ends: 466 [2024-11-19 01:16:19,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2024-11-19 01:16:19,398 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 455 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:19,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 560 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:16:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-19 01:16:19,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 386. [2024-11-19 01:16:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.3235294117647058) internal successors, (450), 341 states have internal predecessors, (450), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 534 transitions. [2024-11-19 01:16:19,472 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 534 transitions. Word has length 135 [2024-11-19 01:16:19,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:19,472 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 534 transitions. [2024-11-19 01:16:19,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:19,472 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 534 transitions. [2024-11-19 01:16:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:19,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:19,475 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:19,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:16:19,476 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:19,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash -954795693, now seen corresponding path program 1 times [2024-11-19 01:16:19,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:19,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434798044] [2024-11-19 01:16:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:19,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:21,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:21,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434798044] [2024-11-19 01:16:21,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434798044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:21,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:21,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:16:21,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223513922] [2024-11-19 01:16:21,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:21,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:16:21,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:21,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:16:21,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:16:21,262 INFO L87 Difference]: Start difference. First operand 386 states and 534 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:21,955 INFO L93 Difference]: Finished difference Result 816 states and 1130 transitions. [2024-11-19 01:16:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:16:21,956 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-19 01:16:21,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:21,959 INFO L225 Difference]: With dead ends: 816 [2024-11-19 01:16:21,959 INFO L226 Difference]: Without dead ends: 454 [2024-11-19 01:16:21,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:16:21,961 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 290 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:21,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 400 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:16:21,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-19 01:16:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 386. [2024-11-19 01:16:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.311764705882353) internal successors, (446), 341 states have internal predecessors, (446), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:22,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 530 transitions. [2024-11-19 01:16:22,019 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 530 transitions. Word has length 135 [2024-11-19 01:16:22,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:22,019 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 530 transitions. [2024-11-19 01:16:22,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 530 transitions. [2024-11-19 01:16:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:22,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:22,022 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:22,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:16:22,022 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:22,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:22,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2030609581, now seen corresponding path program 1 times [2024-11-19 01:16:22,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:22,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179144445] [2024-11-19 01:16:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:22,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:24,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:24,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179144445] [2024-11-19 01:16:24,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179144445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:24,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:24,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:16:24,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316620304] [2024-11-19 01:16:24,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:24,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:16:24,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:24,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:16:24,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:16:24,077 INFO L87 Difference]: Start difference. First operand 386 states and 530 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:24,837 INFO L93 Difference]: Finished difference Result 812 states and 1118 transitions. [2024-11-19 01:16:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:24,839 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-19 01:16:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:24,841 INFO L225 Difference]: With dead ends: 812 [2024-11-19 01:16:24,842 INFO L226 Difference]: Without dead ends: 450 [2024-11-19 01:16:24,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:24,845 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 243 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:24,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 327 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:16:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-19 01:16:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 386. [2024-11-19 01:16:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.3) internal successors, (442), 341 states have internal predecessors, (442), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 526 transitions. [2024-11-19 01:16:24,932 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 526 transitions. Word has length 135 [2024-11-19 01:16:24,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:24,932 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 526 transitions. [2024-11-19 01:16:24,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:24,932 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 526 transitions. [2024-11-19 01:16:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:24,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:24,934 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:24,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:16:24,934 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:24,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1772444143, now seen corresponding path program 1 times [2024-11-19 01:16:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:24,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519425210] [2024-11-19 01:16:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:24,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:27,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:27,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519425210] [2024-11-19 01:16:27,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519425210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:27,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:27,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:16:27,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586586248] [2024-11-19 01:16:27,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:27,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:16:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:27,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:16:27,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:27,377 INFO L87 Difference]: Start difference. First operand 386 states and 526 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:28,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:28,381 INFO L93 Difference]: Finished difference Result 812 states and 1110 transitions. [2024-11-19 01:16:28,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:16:28,382 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-19 01:16:28,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:28,384 INFO L225 Difference]: With dead ends: 812 [2024-11-19 01:16:28,385 INFO L226 Difference]: Without dead ends: 450 [2024-11-19 01:16:28,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-11-19 01:16:28,386 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 347 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:28,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 672 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:16:28,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-19 01:16:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 374. [2024-11-19 01:16:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 328 states have (on average 1.298780487804878) internal successors, (426), 329 states have internal predecessors, (426), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:28,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 510 transitions. [2024-11-19 01:16:28,442 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 510 transitions. Word has length 135 [2024-11-19 01:16:28,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:28,442 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 510 transitions. [2024-11-19 01:16:28,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:28,443 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 510 transitions. [2024-11-19 01:16:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:28,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:28,444 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:28,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:16:28,445 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:28,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:28,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1358589219, now seen corresponding path program 1 times [2024-11-19 01:16:28,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:28,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470378213] [2024-11-19 01:16:28,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:28,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:29,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:29,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470378213] [2024-11-19 01:16:29,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470378213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:29,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:29,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:16:29,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386665117] [2024-11-19 01:16:29,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:29,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:16:29,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:16:29,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:16:29,986 INFO L87 Difference]: Start difference. First operand 374 states and 510 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:30,670 INFO L93 Difference]: Finished difference Result 607 states and 831 transitions. [2024-11-19 01:16:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:16:30,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-19 01:16:30,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:30,673 INFO L225 Difference]: With dead ends: 607 [2024-11-19 01:16:30,673 INFO L226 Difference]: Without dead ends: 416 [2024-11-19 01:16:30,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:16:30,675 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 105 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:30,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 358 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:16:30,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-19 01:16:30,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 394. [2024-11-19 01:16:30,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 348 states have (on average 1.293103448275862) internal successors, (450), 349 states have internal predecessors, (450), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:30,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 534 transitions. [2024-11-19 01:16:30,742 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 534 transitions. Word has length 135 [2024-11-19 01:16:30,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:30,744 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 534 transitions. [2024-11-19 01:16:30,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:30,744 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 534 transitions. [2024-11-19 01:16:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:30,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:30,746 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:30,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:16:30,746 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:30,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:30,747 INFO L85 PathProgramCache]: Analyzing trace with hash 942233371, now seen corresponding path program 1 times [2024-11-19 01:16:30,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:30,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450304874] [2024-11-19 01:16:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:30,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:31,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:31,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450304874] [2024-11-19 01:16:31,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450304874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:31,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:31,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:16:31,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289098355] [2024-11-19 01:16:31,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:31,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:16:31,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:31,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:16:31,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:16:31,018 INFO L87 Difference]: Start difference. First operand 394 states and 534 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:31,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:31,317 INFO L93 Difference]: Finished difference Result 864 states and 1162 transitions. [2024-11-19 01:16:31,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:16:31,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-19 01:16:31,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:31,321 INFO L225 Difference]: With dead ends: 864 [2024-11-19 01:16:31,322 INFO L226 Difference]: Without dead ends: 494 [2024-11-19 01:16:31,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:16:31,323 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 140 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:31,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 299 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:16:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-19 01:16:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 438. [2024-11-19 01:16:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 392 states have (on average 1.260204081632653) internal successors, (494), 393 states have internal predecessors, (494), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:16:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 578 transitions. [2024-11-19 01:16:31,402 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 578 transitions. Word has length 135 [2024-11-19 01:16:31,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:31,403 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 578 transitions. [2024-11-19 01:16:31,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 578 transitions. [2024-11-19 01:16:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:16:31,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:31,406 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:31,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:16:31,406 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:31,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1643297949, now seen corresponding path program 1 times [2024-11-19 01:16:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:31,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304661834] [2024-11-19 01:16:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:32,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:32,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304661834] [2024-11-19 01:16:32,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304661834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:32,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:32,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:16:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339193466] [2024-11-19 01:16:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:32,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:16:32,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:16:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:16:32,258 INFO L87 Difference]: Start difference. First operand 438 states and 578 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:32,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:32,919 INFO L93 Difference]: Finished difference Result 946 states and 1252 transitions. [2024-11-19 01:16:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:32,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-19 01:16:32,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:32,922 INFO L225 Difference]: With dead ends: 946 [2024-11-19 01:16:32,922 INFO L226 Difference]: Without dead ends: 532 [2024-11-19 01:16:32,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:16:32,924 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 285 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:32,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 342 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:16:32,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-19 01:16:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 528. [2024-11-19 01:16:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 460 states have (on average 1.2521739130434784) internal successors, (576), 463 states have internal predecessors, (576), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:16:33,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 700 transitions. [2024-11-19 01:16:33,019 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 700 transitions. Word has length 135 [2024-11-19 01:16:33,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:33,019 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 700 transitions. [2024-11-19 01:16:33,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:33,020 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 700 transitions. [2024-11-19 01:16:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 01:16:33,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:33,021 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:33,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 01:16:33,021 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:33,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:33,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1620026905, now seen corresponding path program 1 times [2024-11-19 01:16:33,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:33,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194951674] [2024-11-19 01:16:33,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:33,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:33,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:33,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194951674] [2024-11-19 01:16:33,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194951674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:33,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:33,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:16:33,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653387546] [2024-11-19 01:16:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:33,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:16:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:33,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:16:33,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:16:33,084 INFO L87 Difference]: Start difference. First operand 528 states and 700 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:33,188 INFO L93 Difference]: Finished difference Result 989 states and 1314 transitions. [2024-11-19 01:16:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:16:33,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-19 01:16:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:33,194 INFO L225 Difference]: With dead ends: 989 [2024-11-19 01:16:33,194 INFO L226 Difference]: Without dead ends: 485 [2024-11-19 01:16:33,196 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 01:16:33,197 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:33,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-19 01:16:33,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-11-19 01:16:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 417 states have (on average 1.2446043165467626) internal successors, (519), 420 states have internal predecessors, (519), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:16:33,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 643 transitions. [2024-11-19 01:16:33,332 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 643 transitions. Word has length 136 [2024-11-19 01:16:33,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:33,333 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 643 transitions. [2024-11-19 01:16:33,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:33,333 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 643 transitions. [2024-11-19 01:16:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 01:16:33,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:33,335 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:33,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:16:33,335 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:33,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:33,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1110553815, now seen corresponding path program 1 times [2024-11-19 01:16:33,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:33,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832797908] [2024-11-19 01:16:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:33,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:34,337 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:34,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:34,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832797908] [2024-11-19 01:16:34,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832797908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:34,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:34,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:16:34,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839082903] [2024-11-19 01:16:34,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:34,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:16:34,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:34,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:16:34,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:16:34,339 INFO L87 Difference]: Start difference. First operand 485 states and 643 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:34,861 INFO L93 Difference]: Finished difference Result 912 states and 1212 transitions. [2024-11-19 01:16:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:34,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 136 [2024-11-19 01:16:34,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:34,864 INFO L225 Difference]: With dead ends: 912 [2024-11-19 01:16:34,864 INFO L226 Difference]: Without dead ends: 451 [2024-11-19 01:16:34,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:16:34,868 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 136 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:34,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 263 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:16:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-19 01:16:34,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 450. [2024-11-19 01:16:34,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 382 states have (on average 1.2303664921465969) internal successors, (470), 385 states have internal predecessors, (470), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:16:34,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 594 transitions. [2024-11-19 01:16:34,971 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 594 transitions. Word has length 136 [2024-11-19 01:16:34,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:34,971 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 594 transitions. [2024-11-19 01:16:34,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:34,973 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 594 transitions. [2024-11-19 01:16:34,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 01:16:34,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:34,974 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:34,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:16:34,974 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:34,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:34,975 INFO L85 PathProgramCache]: Analyzing trace with hash 847971409, now seen corresponding path program 1 times [2024-11-19 01:16:34,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:34,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202030091] [2024-11-19 01:16:34,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:34,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:35,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:35,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202030091] [2024-11-19 01:16:35,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202030091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:35,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:35,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:16:35,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723296601] [2024-11-19 01:16:35,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:35,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:16:35,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:35,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:16:35,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:16:35,630 INFO L87 Difference]: Start difference. First operand 450 states and 594 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:36,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:36,147 INFO L93 Difference]: Finished difference Result 953 states and 1256 transitions. [2024-11-19 01:16:36,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:16:36,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-19 01:16:36,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:36,151 INFO L225 Difference]: With dead ends: 953 [2024-11-19 01:16:36,153 INFO L226 Difference]: Without dead ends: 527 [2024-11-19 01:16:36,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:16:36,156 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 213 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:36,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 474 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:16:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-19 01:16:36,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 505. [2024-11-19 01:16:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 437 states have (on average 1.22883295194508) internal successors, (537), 440 states have internal predecessors, (537), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:16:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 661 transitions. [2024-11-19 01:16:36,261 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 661 transitions. Word has length 139 [2024-11-19 01:16:36,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:36,261 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 661 transitions. [2024-11-19 01:16:36,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 661 transitions. [2024-11-19 01:16:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 01:16:36,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:36,263 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:36,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:16:36,263 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:36,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:36,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1096577190, now seen corresponding path program 1 times [2024-11-19 01:16:36,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:36,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338853584] [2024-11-19 01:16:36,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:36,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:38,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:38,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338853584] [2024-11-19 01:16:38,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338853584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:38,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:38,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:16:38,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685060691] [2024-11-19 01:16:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:38,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:16:38,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:38,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:16:38,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:38,457 INFO L87 Difference]: Start difference. First operand 505 states and 661 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:39,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:39,685 INFO L93 Difference]: Finished difference Result 960 states and 1248 transitions. [2024-11-19 01:16:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:16:39,688 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 139 [2024-11-19 01:16:39,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:39,692 INFO L225 Difference]: With dead ends: 960 [2024-11-19 01:16:39,692 INFO L226 Difference]: Without dead ends: 679 [2024-11-19 01:16:39,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:16:39,695 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 524 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:39,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 397 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:16:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-19 01:16:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 514. [2024-11-19 01:16:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 446 states have (on average 1.2286995515695067) internal successors, (548), 449 states have internal predecessors, (548), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:16:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 672 transitions. [2024-11-19 01:16:39,774 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 672 transitions. Word has length 139 [2024-11-19 01:16:39,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:39,775 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 672 transitions. [2024-11-19 01:16:39,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:39,776 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 672 transitions. [2024-11-19 01:16:39,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 01:16:39,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:39,778 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:39,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 01:16:39,778 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:39,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:39,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1020534997, now seen corresponding path program 1 times [2024-11-19 01:16:39,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:39,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8782557] [2024-11-19 01:16:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:39,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:39,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:39,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8782557] [2024-11-19 01:16:39,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8782557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:39,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:39,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:16:39,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226544563] [2024-11-19 01:16:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:39,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:16:39,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:39,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:16:39,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:16:39,959 INFO L87 Difference]: Start difference. First operand 514 states and 672 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:40,139 INFO L93 Difference]: Finished difference Result 1063 states and 1389 transitions. [2024-11-19 01:16:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:16:40,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-19 01:16:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:40,143 INFO L225 Difference]: With dead ends: 1063 [2024-11-19 01:16:40,144 INFO L226 Difference]: Without dead ends: 573 [2024-11-19 01:16:40,145 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 01:16:40,146 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 59 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:40,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 310 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:16:40,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-19 01:16:40,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 525. [2024-11-19 01:16:40,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 457 states have (on average 1.2210065645514223) internal successors, (558), 460 states have internal predecessors, (558), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:16:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 682 transitions. [2024-11-19 01:16:40,229 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 682 transitions. Word has length 139 [2024-11-19 01:16:40,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:40,230 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 682 transitions. [2024-11-19 01:16:40,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:40,230 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 682 transitions. [2024-11-19 01:16:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 01:16:40,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:40,232 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:40,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 01:16:40,232 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:40,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1329883700, now seen corresponding path program 1 times [2024-11-19 01:16:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:40,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017327498] [2024-11-19 01:16:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:40,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:41,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:41,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017327498] [2024-11-19 01:16:41,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017327498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:41,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:41,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:16:41,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871095913] [2024-11-19 01:16:41,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:41,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:16:41,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:41,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:16:41,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:16:41,454 INFO L87 Difference]: Start difference. First operand 525 states and 682 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:42,147 INFO L93 Difference]: Finished difference Result 1169 states and 1520 transitions. [2024-11-19 01:16:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:16:42,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 139 [2024-11-19 01:16:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:42,152 INFO L225 Difference]: With dead ends: 1169 [2024-11-19 01:16:42,152 INFO L226 Difference]: Without dead ends: 668 [2024-11-19 01:16:42,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:16:42,154 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 287 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:42,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 274 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:16:42,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-19 01:16:42,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 568. [2024-11-19 01:16:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 500 states have (on average 1.224) internal successors, (612), 503 states have internal predecessors, (612), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:16:42,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 736 transitions. [2024-11-19 01:16:42,250 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 736 transitions. Word has length 139 [2024-11-19 01:16:42,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:42,250 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 736 transitions. [2024-11-19 01:16:42,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:42,251 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 736 transitions. [2024-11-19 01:16:42,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 01:16:42,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:42,252 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:42,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 01:16:42,253 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:42,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1953966346, now seen corresponding path program 1 times [2024-11-19 01:16:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:42,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027179702] [2024-11-19 01:16:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 01:16:42,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027179702] [2024-11-19 01:16:42,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027179702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623506682] [2024-11-19 01:16:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:42,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:16:42,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:42,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:16:43,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:16:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:43,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 01:16:43,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:16:43,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:16:43,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:44,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:44,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:44,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:44,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:16:44,717 INFO L349 Elim1Store]: treesize reduction 60, result has 41.7 percent of original size [2024-11-19 01:16:44,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 62 [2024-11-19 01:16:44,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 01:16:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 165 proven. 195 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-19 01:16:44,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:16:49,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623506682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:49,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 01:16:49,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-19 01:16:49,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965170778] [2024-11-19 01:16:49,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 01:16:49,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 01:16:49,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:49,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 01:16:49,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=341, Unknown=1, NotChecked=0, Total=420 [2024-11-19 01:16:49,077 INFO L87 Difference]: Start difference. First operand 568 states and 736 transitions. Second operand has 18 states, 16 states have (on average 6.1875) internal successors, (99), 18 states have internal predecessors, (99), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34)