./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.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-84.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 645cc8cd2ca5c3df18e88a30b2b1ec0d9c7b704a87e37ccd990a4988acc7530a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:22:14,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:22:14,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:22:14,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:22:14,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:22:14,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:22:14,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:22:14,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:22:14,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:22:14,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:22:14,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:22:14,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:22:14,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:22:14,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:22:14,734 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:22:14,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:22:14,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:22:14,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:22:14,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:22:14,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:22:14,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:22:14,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:22:14,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:22:14,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:22:14,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:22:14,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:22:14,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:22:14,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:22:14,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:22:14,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:22:14,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:22:14,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:22:14,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:22:14,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:22:14,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:22:14,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:22:14,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:22:14,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:22:14,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:22:14,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:22:14,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:22:14,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:22:14,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 645cc8cd2ca5c3df18e88a30b2b1ec0d9c7b704a87e37ccd990a4988acc7530a [2024-11-19 01:22:15,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:22:15,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:22:15,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:22:15,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:22:15,040 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:22:15,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2024-11-19 01:22:16,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:22:16,660 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:22:16,661 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2024-11-19 01:22:16,670 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a47a39da/1d4c676ff7b34cd59ac3ff0b68ab8be0/FLAGf3b38be00 [2024-11-19 01:22:16,681 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a47a39da/1d4c676ff7b34cd59ac3ff0b68ab8be0 [2024-11-19 01:22:16,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:22:16,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:22:16,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:22:16,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:22:16,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:22:16,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:16" (1/1) ... [2024-11-19 01:22:16,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ffba37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:16, skipping insertion in model container [2024-11-19 01:22:16,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:16" (1/1) ... [2024-11-19 01:22:16,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:22:16,890 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-84.i[917,930] [2024-11-19 01:22:16,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:22:16,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:22:16,985 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-84.i[917,930] [2024-11-19 01:22:17,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:22:17,055 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:22:17,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17 WrapperNode [2024-11-19 01:22:17,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:22:17,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:22:17,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:22:17,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:22:17,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,125 INFO L138 Inliner]: procedures = 30, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-11-19 01:22:17,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:22:17,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:22:17,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:22:17,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:22:17,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,157 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-19 01:22:17,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:22:17,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:22:17,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:22:17,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:22:17,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (1/1) ... [2024-11-19 01:22:17,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:22:17,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:22:17,250 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 01:22:17,253 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 01:22:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:22:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-19 01:22:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-19 01:22:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-19 01:22:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 01:22:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-19 01:22:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 01:22:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:22:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:22:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 01:22:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:22:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:22:17,475 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:22:17,476 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:22:18,056 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-19 01:22:18,058 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:22:18,071 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:22:18,072 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:22:18,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:18 BoogieIcfgContainer [2024-11-19 01:22:18,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:22:18,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:22:18,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:22:18,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:22:18,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:22:16" (1/3) ... [2024-11-19 01:22:18,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010321a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:18, skipping insertion in model container [2024-11-19 01:22:18,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:17" (2/3) ... [2024-11-19 01:22:18,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010321a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:18, skipping insertion in model container [2024-11-19 01:22:18,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:18" (3/3) ... [2024-11-19 01:22:18,084 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-84.i [2024-11-19 01:22:18,102 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:22:18,103 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:22:18,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:22:18,164 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;@151b72ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:22:18,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:22:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 01:22:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:22:18,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:18,185 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:18,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:18,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash 924800917, now seen corresponding path program 1 times [2024-11-19 01:22:18,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:18,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161377810] [2024-11-19 01:22:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:18,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-19 01:22:18,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:18,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161377810] [2024-11-19 01:22:18,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161377810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:22:18,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902634879] [2024-11-19 01:22:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:18,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:22:18,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:22:18,675 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 01:22:18,676 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 01:22:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:18,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:22:19,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:22:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-19 01:22:19,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:22:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902634879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:19,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:22:19,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:22:19,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720051426] [2024-11-19 01:22:19,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:19,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:22:19,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:19,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:22:19,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:22:19,073 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 01:22:19,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:19,104 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-11-19 01:22:19,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:22:19,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-19 01:22:19,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:19,116 INFO L225 Difference]: With dead ends: 199 [2024-11-19 01:22:19,116 INFO L226 Difference]: Without dead ends: 99 [2024-11-19 01:22:19,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 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 01:22:19,121 INFO L432 NwaCegarLoop]: 141 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, 141 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 01:22:19,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:22:19,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-19 01:22:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-19 01:22:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 01:22:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-11-19 01:22:19,159 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-11-19 01:22:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:19,159 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-11-19 01:22:19,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 01:22:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-11-19 01:22:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:22:19,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:19,164 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:19,178 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 01:22:19,365 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 01:22:19,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:19,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1032707065, now seen corresponding path program 1 times [2024-11-19 01:22:19,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:19,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000154680] [2024-11-19 01:22:19,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:19,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:22:19,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:19,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000154680] [2024-11-19 01:22:19,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000154680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:19,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:19,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:22:19,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127382341] [2024-11-19 01:22:19,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:19,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:22:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:19,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:22:19,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:19,732 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:22:19,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:19,774 INFO L93 Difference]: Finished difference Result 198 states and 283 transitions. [2024-11-19 01:22:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:22:19,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-19 01:22:19,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:19,778 INFO L225 Difference]: With dead ends: 198 [2024-11-19 01:22:19,778 INFO L226 Difference]: Without dead ends: 102 [2024-11-19 01:22:19,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:22:19,780 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:19,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 405 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:22:19,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-19 01:22:19,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-19 01:22:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 01:22:19,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2024-11-19 01:22:19,803 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 150 [2024-11-19 01:22:19,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:19,804 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2024-11-19 01:22:19,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:22:19,805 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2024-11-19 01:22:19,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:22:19,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:19,807 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:19,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:22:19,809 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:19,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:19,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1034554107, now seen corresponding path program 1 times [2024-11-19 01:22:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768426626] [2024-11-19 01:22:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:19,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:22:20,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:20,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768426626] [2024-11-19 01:22:20,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768426626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:20,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:20,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:22:20,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571195707] [2024-11-19 01:22:20,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:20,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:22:20,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:22:20,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:22:20,648 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:22:21,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:21,062 INFO L93 Difference]: Finished difference Result 292 states and 415 transitions. [2024-11-19 01:22:21,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:22:21,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-19 01:22:21,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:21,065 INFO L225 Difference]: With dead ends: 292 [2024-11-19 01:22:21,068 INFO L226 Difference]: Without dead ends: 194 [2024-11-19 01:22:21,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:22:21,070 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 106 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:21,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 370 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:22:21,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-19 01:22:21,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 169. [2024-11-19 01:22:21,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 126 states have internal predecessors, (160), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 01:22:21,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2024-11-19 01:22:21,109 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 150 [2024-11-19 01:22:21,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:21,110 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2024-11-19 01:22:21,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:22:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2024-11-19 01:22:21,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 01:22:21,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:21,116 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:21,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:22:21,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:21,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2120166937, now seen corresponding path program 1 times [2024-11-19 01:22:21,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:21,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752125726] [2024-11-19 01:22:21,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:21,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:22:28,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:28,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752125726] [2024-11-19 01:22:28,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752125726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:28,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:28,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-19 01:22:28,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542245957] [2024-11-19 01:22:28,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:28,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 01:22:28,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:28,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 01:22:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:22:28,937 INFO L87 Difference]: Start difference. First operand 169 states and 240 transitions. Second operand has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:32,054 INFO L93 Difference]: Finished difference Result 322 states and 456 transitions. [2024-11-19 01:22:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:22:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 158 [2024-11-19 01:22:32,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:32,057 INFO L225 Difference]: With dead ends: 322 [2024-11-19 01:22:32,058 INFO L226 Difference]: Without dead ends: 224 [2024-11-19 01:22:32,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2024-11-19 01:22:32,063 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 252 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:32,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 849 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 01:22:32,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-19 01:22:32,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 195. [2024-11-19 01:22:32,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 152 states have (on average 1.2960526315789473) internal successors, (197), 152 states have internal predecessors, (197), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 01:22:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 277 transitions. [2024-11-19 01:22:32,114 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 277 transitions. Word has length 158 [2024-11-19 01:22:32,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:32,115 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 277 transitions. [2024-11-19 01:22:32,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 277 transitions. [2024-11-19 01:22:32,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 01:22:32,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:32,118 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:32,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:22:32,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:32,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:32,119 INFO L85 PathProgramCache]: Analyzing trace with hash -710246938, now seen corresponding path program 1 times [2024-11-19 01:22:32,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:32,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385867978] [2024-11-19 01:22:32,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:32,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:22:39,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:39,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385867978] [2024-11-19 01:22:39,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385867978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:39,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:39,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-19 01:22:39,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754405509] [2024-11-19 01:22:39,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:39,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 01:22:39,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:39,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 01:22:39,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-19 01:22:39,677 INFO L87 Difference]: Start difference. First operand 195 states and 277 transitions. Second operand has 20 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 20 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:44,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:44,420 INFO L93 Difference]: Finished difference Result 468 states and 652 transitions. [2024-11-19 01:22:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 01:22:44,421 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 20 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 159 [2024-11-19 01:22:44,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:44,425 INFO L225 Difference]: With dead ends: 468 [2024-11-19 01:22:44,425 INFO L226 Difference]: Without dead ends: 354 [2024-11-19 01:22:44,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=254, Invalid=1152, Unknown=0, NotChecked=0, Total=1406 [2024-11-19 01:22:44,427 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 457 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:44,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1343 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-19 01:22:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-19 01:22:44,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 201. [2024-11-19 01:22:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 158 states have (on average 1.3101265822784811) internal successors, (207), 158 states have internal predecessors, (207), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 01:22:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 287 transitions. [2024-11-19 01:22:44,471 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 287 transitions. Word has length 159 [2024-11-19 01:22:44,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:44,471 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 287 transitions. [2024-11-19 01:22:44,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 20 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:44,472 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 287 transitions. [2024-11-19 01:22:44,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 01:22:44,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:44,474 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:44,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:22:44,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:44,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:44,475 INFO L85 PathProgramCache]: Analyzing trace with hash -491392220, now seen corresponding path program 1 times [2024-11-19 01:22:44,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:44,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845499917] [2024-11-19 01:22:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:44,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:22:50,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845499917] [2024-11-19 01:22:50,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845499917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:50,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:50,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-19 01:22:50,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159934922] [2024-11-19 01:22:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:50,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 01:22:50,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:50,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 01:22:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:22:50,071 INFO L87 Difference]: Start difference. First operand 201 states and 287 transitions. Second operand has 18 states, 16 states have (on average 3.875) internal successors, (62), 18 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:52,360 INFO L93 Difference]: Finished difference Result 357 states and 507 transitions. [2024-11-19 01:22:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 01:22:52,360 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.875) internal successors, (62), 18 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 159 [2024-11-19 01:22:52,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:52,362 INFO L225 Difference]: With dead ends: 357 [2024-11-19 01:22:52,362 INFO L226 Difference]: Without dead ends: 240 [2024-11-19 01:22:52,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-11-19 01:22:52,364 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 216 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:52,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 671 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 01:22:52,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-19 01:22:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 195. [2024-11-19 01:22:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 152 states have (on average 1.2960526315789473) internal successors, (197), 152 states have internal predecessors, (197), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 01:22:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 277 transitions. [2024-11-19 01:22:52,396 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 277 transitions. Word has length 159 [2024-11-19 01:22:52,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:52,398 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 277 transitions. [2024-11-19 01:22:52,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.875) internal successors, (62), 18 states have internal predecessors, (62), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 277 transitions. [2024-11-19 01:22:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:22:52,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:52,400 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:52,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:22:52,400 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:52,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:52,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1171616002, now seen corresponding path program 1 times [2024-11-19 01:22:52,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:52,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774109045] [2024-11-19 01:22:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:52,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:22:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:22:55,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:22:55,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774109045] [2024-11-19 01:22:55,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774109045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:22:55,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:22:55,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:22:55,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520319433] [2024-11-19 01:22:55,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:22:55,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:22:55,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:22:55,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:22:55,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:22:55,917 INFO L87 Difference]: Start difference. First operand 195 states and 277 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:57,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:22:57,868 INFO L93 Difference]: Finished difference Result 378 states and 533 transitions. [2024-11-19 01:22:57,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:22:57,868 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-19 01:22:57,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:22:57,870 INFO L225 Difference]: With dead ends: 378 [2024-11-19 01:22:57,870 INFO L226 Difference]: Without dead ends: 264 [2024-11-19 01:22:57,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:22:57,871 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 211 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:22:57,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 578 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 01:22:57,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-19 01:22:57,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2024-11-19 01:22:57,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 215 states have (on average 1.3162790697674418) internal successors, (283), 216 states have internal predecessors, (283), 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 01:22:57,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 367 transitions. [2024-11-19 01:22:57,909 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 367 transitions. Word has length 160 [2024-11-19 01:22:57,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:22:57,909 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 367 transitions. [2024-11-19 01:22:57,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:22:57,910 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 367 transitions. [2024-11-19 01:22:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:22:57,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:22:57,912 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:57,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:22:57,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:22:57,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:22:57,913 INFO L85 PathProgramCache]: Analyzing trace with hash 269132564, now seen corresponding path program 1 times [2024-11-19 01:22:57,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:22:57,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737600376] [2024-11-19 01:22:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:22:57,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:22:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:01,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:01,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737600376] [2024-11-19 01:23:01,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737600376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:01,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:01,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 01:23:01,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861708784] [2024-11-19 01:23:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:01,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 01:23:01,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:01,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 01:23:01,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:23:01,102 INFO L87 Difference]: Start difference. First operand 261 states and 367 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-19 01:23:02,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:02,573 INFO L93 Difference]: Finished difference Result 554 states and 778 transitions. [2024-11-19 01:23:02,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:23:02,574 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-19 01:23:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:02,578 INFO L225 Difference]: With dead ends: 554 [2024-11-19 01:23:02,578 INFO L226 Difference]: Without dead ends: 386 [2024-11-19 01:23:02,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-19 01:23:02,579 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 318 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:02,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 742 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 01:23:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-19 01:23:02,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 338. [2024-11-19 01:23:02,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 292 states have (on average 1.345890410958904) internal successors, (393), 293 states have internal predecessors, (393), 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 01:23:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 477 transitions. [2024-11-19 01:23:02,625 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 477 transitions. Word has length 160 [2024-11-19 01:23:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:02,626 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 477 transitions. [2024-11-19 01:23:02,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-19 01:23:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 477 transitions. [2024-11-19 01:23:02,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:02,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:02,628 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:02,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:23:02,628 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:02,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1129206588, now seen corresponding path program 1 times [2024-11-19 01:23:02,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:02,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602378442] [2024-11-19 01:23:02,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:02,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:02,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:02,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602378442] [2024-11-19 01:23:02,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602378442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:02,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:02,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:23:02,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592838991] [2024-11-19 01:23:02,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:02,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:23:02,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:02,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:23:02,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:23:02,933 INFO L87 Difference]: Start difference. First operand 338 states and 477 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:23:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:03,200 INFO L93 Difference]: Finished difference Result 650 states and 908 transitions. [2024-11-19 01:23:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:23:03,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-19 01:23:03,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:03,204 INFO L225 Difference]: With dead ends: 650 [2024-11-19 01:23:03,204 INFO L226 Difference]: Without dead ends: 426 [2024-11-19 01:23:03,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:23:03,206 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 38 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:03,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 450 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:23:03,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-19 01:23:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 348. [2024-11-19 01:23:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 302 states have (on average 1.3410596026490067) internal successors, (405), 303 states have internal predecessors, (405), 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 01:23:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 489 transitions. [2024-11-19 01:23:03,270 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 489 transitions. Word has length 160 [2024-11-19 01:23:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:03,270 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 489 transitions. [2024-11-19 01:23:03,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:23:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 489 transitions. [2024-11-19 01:23:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:03,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:03,275 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:03,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:23:03,275 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:03,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:03,276 INFO L85 PathProgramCache]: Analyzing trace with hash -150657090, now seen corresponding path program 1 times [2024-11-19 01:23:03,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:03,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034540207] [2024-11-19 01:23:03,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:03,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:06,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034540207] [2024-11-19 01:23:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034540207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:06,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:06,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:23:06,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287006340] [2024-11-19 01:23:06,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:06,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:23:06,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:06,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:23:06,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:23:06,139 INFO L87 Difference]: Start difference. First operand 348 states and 489 transitions. Second operand has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:07,081 INFO L93 Difference]: Finished difference Result 662 states and 930 transitions. [2024-11-19 01:23:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:23:07,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-19 01:23:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:07,085 INFO L225 Difference]: With dead ends: 662 [2024-11-19 01:23:07,085 INFO L226 Difference]: Without dead ends: 428 [2024-11-19 01:23:07,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:23:07,086 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 259 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:07,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 339 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:23:07,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-19 01:23:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 388. [2024-11-19 01:23:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 342 states have (on average 1.3538011695906433) internal successors, (463), 343 states have internal predecessors, (463), 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 01:23:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 547 transitions. [2024-11-19 01:23:07,140 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 547 transitions. Word has length 160 [2024-11-19 01:23:07,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:07,141 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 547 transitions. [2024-11-19 01:23:07,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:07,141 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 547 transitions. [2024-11-19 01:23:07,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:07,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:07,143 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:07,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:23:07,143 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:07,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash 409681174, now seen corresponding path program 1 times [2024-11-19 01:23:07,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:07,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259638901] [2024-11-19 01:23:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:07,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:07,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:07,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259638901] [2024-11-19 01:23:07,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259638901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:07,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:07,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:23:07,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066448429] [2024-11-19 01:23:07,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:07,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:23:07,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:07,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:23:07,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:23:07,658 INFO L87 Difference]: Start difference. First operand 388 states and 547 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:23:08,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:08,102 INFO L93 Difference]: Finished difference Result 718 states and 1005 transitions. [2024-11-19 01:23:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:23:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-19 01:23:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:08,107 INFO L225 Difference]: With dead ends: 718 [2024-11-19 01:23:08,108 INFO L226 Difference]: Without dead ends: 463 [2024-11-19 01:23:08,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:23:08,109 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 167 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:08,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 404 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:23:08,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-19 01:23:08,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 415. [2024-11-19 01:23:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 369 states have (on average 1.3523035230352303) internal successors, (499), 370 states have internal predecessors, (499), 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 01:23:08,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 583 transitions. [2024-11-19 01:23:08,168 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 583 transitions. Word has length 160 [2024-11-19 01:23:08,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:08,168 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 583 transitions. [2024-11-19 01:23:08,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-19 01:23:08,168 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 583 transitions. [2024-11-19 01:23:08,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:08,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:08,170 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:08,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:23:08,170 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:08,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1545951006, now seen corresponding path program 1 times [2024-11-19 01:23:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:08,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518364558] [2024-11-19 01:23:08,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:08,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:11,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:11,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518364558] [2024-11-19 01:23:11,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518364558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:11,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:11,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:23:11,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231267434] [2024-11-19 01:23:11,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:11,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:23:11,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:11,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:23:11,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:23:11,011 INFO L87 Difference]: Start difference. First operand 415 states and 583 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:12,717 INFO L93 Difference]: Finished difference Result 736 states and 1026 transitions. [2024-11-19 01:23:12,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:23:12,718 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-19 01:23:12,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:12,722 INFO L225 Difference]: With dead ends: 736 [2024-11-19 01:23:12,722 INFO L226 Difference]: Without dead ends: 458 [2024-11-19 01:23:12,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:23:12,727 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 287 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:12,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 675 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 01:23:12,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-19 01:23:12,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 419. [2024-11-19 01:23:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 372 states have (on average 1.3440860215053763) internal successors, (500), 373 states have internal predecessors, (500), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:23:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 584 transitions. [2024-11-19 01:23:12,794 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 584 transitions. Word has length 160 [2024-11-19 01:23:12,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:12,795 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 584 transitions. [2024-11-19 01:23:12,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:12,795 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 584 transitions. [2024-11-19 01:23:12,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:12,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:12,797 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:12,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:23:12,797 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:12,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:12,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1148983748, now seen corresponding path program 1 times [2024-11-19 01:23:12,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:12,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464960902] [2024-11-19 01:23:12,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:12,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:15,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:15,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464960902] [2024-11-19 01:23:15,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464960902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:15,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:15,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 01:23:15,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676616379] [2024-11-19 01:23:15,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:15,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 01:23:15,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:15,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 01:23:15,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:23:15,677 INFO L87 Difference]: Start difference. First operand 419 states and 584 transitions. Second operand has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:17,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:17,416 INFO L93 Difference]: Finished difference Result 746 states and 1034 transitions. [2024-11-19 01:23:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:23:17,417 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-19 01:23:17,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:17,420 INFO L225 Difference]: With dead ends: 746 [2024-11-19 01:23:17,420 INFO L226 Difference]: Without dead ends: 468 [2024-11-19 01:23:17,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-11-19 01:23:17,422 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 371 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:17,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 626 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 01:23:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-19 01:23:17,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 465. [2024-11-19 01:23:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 413 states have (on average 1.3292978208232447) internal successors, (549), 415 states have internal predecessors, (549), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 01:23:17,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 641 transitions. [2024-11-19 01:23:17,481 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 641 transitions. Word has length 160 [2024-11-19 01:23:17,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:17,481 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 641 transitions. [2024-11-19 01:23:17,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:17,482 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 641 transitions. [2024-11-19 01:23:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:17,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:17,483 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:17,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:23:17,483 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:17,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash -128024836, now seen corresponding path program 1 times [2024-11-19 01:23:17,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:17,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681378223] [2024-11-19 01:23:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:17,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:20,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:20,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681378223] [2024-11-19 01:23:20,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681378223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:20,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:20,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-19 01:23:20,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123177250] [2024-11-19 01:23:20,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:20,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 01:23:20,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:20,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 01:23:20,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:23:20,290 INFO L87 Difference]: Start difference. First operand 465 states and 641 transitions. Second operand has 17 states, 15 states have (on average 4.2) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:21,986 INFO L93 Difference]: Finished difference Result 786 states and 1083 transitions. [2024-11-19 01:23:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:23:21,986 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.2) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-19 01:23:21,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:21,989 INFO L225 Difference]: With dead ends: 786 [2024-11-19 01:23:21,989 INFO L226 Difference]: Without dead ends: 462 [2024-11-19 01:23:21,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-11-19 01:23:21,990 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 243 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:21,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 739 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 01:23:21,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-19 01:23:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 455. [2024-11-19 01:23:22,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 403 states have (on average 1.3325062034739454) internal successors, (537), 405 states have internal predecessors, (537), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 01:23:22,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 629 transitions. [2024-11-19 01:23:22,053 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 629 transitions. Word has length 160 [2024-11-19 01:23:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:22,053 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 629 transitions. [2024-11-19 01:23:22,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.2) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-19 01:23:22,053 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 629 transitions. [2024-11-19 01:23:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:22,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:22,054 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:22,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:23:22,055 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:22,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:22,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1568583260, now seen corresponding path program 1 times [2024-11-19 01:23:22,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:22,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606531409] [2024-11-19 01:23:22,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:22,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:23:22,796 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-19 01:23:22,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:23:22,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606531409] [2024-11-19 01:23:22,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606531409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:23:22,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:23:22,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:23:22,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103631124] [2024-11-19 01:23:22,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:23:22,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:23:22,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:23:22,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:23:22,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:23:22,799 INFO L87 Difference]: Start difference. First operand 455 states and 629 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-19 01:23:23,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:23:23,345 INFO L93 Difference]: Finished difference Result 789 states and 1090 transitions. [2024-11-19 01:23:23,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:23:23,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-19 01:23:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:23:23,348 INFO L225 Difference]: With dead ends: 789 [2024-11-19 01:23:23,348 INFO L226 Difference]: Without dead ends: 455 [2024-11-19 01:23:23,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:23:23,349 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 105 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:23:23,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 324 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:23:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-19 01:23:23,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-19 01:23:23,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 403 states have (on average 1.3275434243176178) internal successors, (535), 405 states have internal predecessors, (535), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 01:23:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 627 transitions. [2024-11-19 01:23:23,414 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 627 transitions. Word has length 160 [2024-11-19 01:23:23,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:23:23,414 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 627 transitions. [2024-11-19 01:23:23,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-19 01:23:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 627 transitions. [2024-11-19 01:23:23,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:23:23,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:23:23,416 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:23,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:23:23,416 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:23:23,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:23:23,417 INFO L85 PathProgramCache]: Analyzing trace with hash -803156002, now seen corresponding path program 1 times [2024-11-19 01:23:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:23:23,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563694045] [2024-11-19 01:23:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:23:23,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:23:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat