./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.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 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:31:38,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:31:38,863 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:31:38,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:31:38,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:31:38,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:31:38,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:31:38,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:31:38,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:31:38,900 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:31:38,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:31:38,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:31:38,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:31:38,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:31:38,903 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:31:38,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:31:38,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:31:38,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:31:38,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:31:38,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:31:38,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:31:38,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:31:38,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:31:38,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:31:38,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:31:38,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:31:38,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:31:38,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:31:38,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:31:38,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:31:38,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:31:38,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:31:38,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:31:38,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:31:38,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:31:38,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:31:38,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:31:38,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:31:38,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:31:38,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:31:38,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:31:38,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:31:38,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc [2024-10-13 06:31:39,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:31:39,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:31:39,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:31:39,127 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:31:39,127 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:31:39,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-10-13 06:31:40,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:31:40,624 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:31:40,625 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-10-13 06:31:40,632 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ecd2241/2770f39f115d4d8dbfb19f20ff5a9673/FLAGb5d16c88c [2024-10-13 06:31:40,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ecd2241/2770f39f115d4d8dbfb19f20ff5a9673 [2024-10-13 06:31:40,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:31:40,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:31:40,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:31:40,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:31:40,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:31:40,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:40,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@832d1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40, skipping insertion in model container [2024-10-13 06:31:40,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:40,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:31:40,839 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i[916,929] [2024-10-13 06:31:40,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:31:40,899 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:31:40,910 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i[916,929] [2024-10-13 06:31:40,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:31:40,964 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:31:40,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40 WrapperNode [2024-10-13 06:31:40,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:31:40,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:31:40,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:31:40,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:31:40,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:40,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,027 INFO L138 Inliner]: procedures = 26, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 487 [2024-10-13 06:31:41,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:31:41,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:31:41,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:31:41,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:31:41,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,065 INFO L175 MemorySlicer]: Split 138 memory accesses to 2 slices as follows [2, 136]. 99 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 18 writes are split as follows [0, 18]. [2024-10-13 06:31:41,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:31:41,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:31:41,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:31:41,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:31:41,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (1/1) ... [2024-10-13 06:31:41,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:31:41,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:31:41,133 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) [2024-10-13 06:31:41,140 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 [2024-10-13 06:31:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:31:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:31:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:31:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:31:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:31:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:31:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:31:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:31:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:31:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:31:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:31:41,278 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:31:41,280 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:31:41,759 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-10-13 06:31:41,759 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:31:41,783 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:31:41,783 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:31:41,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:31:41 BoogieIcfgContainer [2024-10-13 06:31:41,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:31:41,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:31:41,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:31:41,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:31:41,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:31:40" (1/3) ... [2024-10-13 06:31:41,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556b0630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:31:41, skipping insertion in model container [2024-10-13 06:31:41,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:40" (2/3) ... [2024-10-13 06:31:41,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556b0630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:31:41, skipping insertion in model container [2024-10-13 06:31:41,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:31:41" (3/3) ... [2024-10-13 06:31:41,790 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-71.i [2024-10-13 06:31:41,802 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:31:41,803 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:31:41,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:31:41,853 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;@715c3045, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:31:41,853 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:31:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:31:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 06:31:41,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:41,870 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:41,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:41,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:41,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1183335138, now seen corresponding path program 1 times [2024-10-13 06:31:41,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:41,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386018831] [2024-10-13 06:31:41,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:41,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:42,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:42,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386018831] [2024-10-13 06:31:42,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386018831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:42,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:42,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:31:42,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014483478] [2024-10-13 06:31:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:42,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:31:42,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:31:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:31:42,300 INFO L87 Difference]: Start difference. First operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:42,381 INFO L93 Difference]: Finished difference Result 193 states and 309 transitions. [2024-10-13 06:31:42,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:31:42,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2024-10-13 06:31:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:42,390 INFO L225 Difference]: With dead ends: 193 [2024-10-13 06:31:42,390 INFO L226 Difference]: Without dead ends: 96 [2024-10-13 06:31:42,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:31:42,395 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:42,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:31:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-10-13 06:31:42,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-10-13 06:31:42,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:31:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2024-10-13 06:31:42,430 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 139 [2024-10-13 06:31:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:42,431 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2024-10-13 06:31:42,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2024-10-13 06:31:42,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 06:31:42,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:42,434 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:42,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:31:42,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:42,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:42,435 INFO L85 PathProgramCache]: Analyzing trace with hash 632234308, now seen corresponding path program 1 times [2024-10-13 06:31:42,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:42,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723424533] [2024-10-13 06:31:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:42,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:42,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:42,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723424533] [2024-10-13 06:31:42,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723424533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:42,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:42,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:31:42,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804412306] [2024-10-13 06:31:42,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:42,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:31:42,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:42,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:31:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:31:42,819 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:31:42,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:42,879 INFO L93 Difference]: Finished difference Result 194 states and 281 transitions. [2024-10-13 06:31:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:31:42,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2024-10-13 06:31:42,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:42,882 INFO L225 Difference]: With dead ends: 194 [2024-10-13 06:31:42,885 INFO L226 Difference]: Without dead ends: 99 [2024-10-13 06:31:42,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:31:42,887 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:42,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:31:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-13 06:31:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2024-10-13 06:31:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:31:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2024-10-13 06:31:42,907 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 139 [2024-10-13 06:31:42,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:42,908 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2024-10-13 06:31:42,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:31:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2024-10-13 06:31:42,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 06:31:42,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:42,911 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:42,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:31:42,912 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:42,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash 689492610, now seen corresponding path program 1 times [2024-10-13 06:31:42,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:42,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584302488] [2024-10-13 06:31:42,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:42,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:43,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:43,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584302488] [2024-10-13 06:31:43,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584302488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:43,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:43,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:31:43,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586953737] [2024-10-13 06:31:43,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:43,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:31:43,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:43,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:31:43,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:31:43,187 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:31:43,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:43,231 INFO L93 Difference]: Finished difference Result 198 states and 285 transitions. [2024-10-13 06:31:43,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:31:43,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2024-10-13 06:31:43,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:43,237 INFO L225 Difference]: With dead ends: 198 [2024-10-13 06:31:43,237 INFO L226 Difference]: Without dead ends: 101 [2024-10-13 06:31:43,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:31:43,239 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:43,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 393 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:31:43,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-10-13 06:31:43,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-10-13 06:31:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 06:31:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2024-10-13 06:31:43,256 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 139 [2024-10-13 06:31:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:43,257 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2024-10-13 06:31:43,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:31:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2024-10-13 06:31:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 06:31:43,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:43,262 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:43,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:31:43,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:43,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:43,263 INFO L85 PathProgramCache]: Analyzing trace with hash 689552192, now seen corresponding path program 1 times [2024-10-13 06:31:43,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:43,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787351793] [2024-10-13 06:31:43,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:43,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:44,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:44,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787351793] [2024-10-13 06:31:44,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787351793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:44,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:44,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:31:44,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208666736] [2024-10-13 06:31:44,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:44,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:31:44,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:31:44,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:31:44,137 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:44,586 INFO L93 Difference]: Finished difference Result 280 states and 398 transitions. [2024-10-13 06:31:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:31:44,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2024-10-13 06:31:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:44,588 INFO L225 Difference]: With dead ends: 280 [2024-10-13 06:31:44,588 INFO L226 Difference]: Without dead ends: 181 [2024-10-13 06:31:44,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:31:44,590 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 103 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:44,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 498 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:31:44,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-13 06:31:44,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 169. [2024-10-13 06:31:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 138 states have internal predecessors, (182), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-13 06:31:44,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2024-10-13 06:31:44,617 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 139 [2024-10-13 06:31:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:44,617 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2024-10-13 06:31:44,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2024-10-13 06:31:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-13 06:31:44,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:44,620 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:44,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:31:44,621 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:44,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1419147393, now seen corresponding path program 1 times [2024-10-13 06:31:44,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:44,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493826130] [2024-10-13 06:31:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:45,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:45,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493826130] [2024-10-13 06:31:45,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493826130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:45,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:45,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:31:45,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450149865] [2024-10-13 06:31:45,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:45,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:31:45,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:45,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:31:45,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:31:45,695 INFO L87 Difference]: Start difference. First operand 169 states and 240 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:46,114 INFO L93 Difference]: Finished difference Result 421 states and 599 transitions. [2024-10-13 06:31:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:31:46,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 140 [2024-10-13 06:31:46,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:46,119 INFO L225 Difference]: With dead ends: 421 [2024-10-13 06:31:46,119 INFO L226 Difference]: Without dead ends: 253 [2024-10-13 06:31:46,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:31:46,120 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 158 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:46,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 548 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:31:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-13 06:31:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 178. [2024-10-13 06:31:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 146 states have (on average 1.3424657534246576) internal successors, (196), 147 states have internal predecessors, (196), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-13 06:31:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 254 transitions. [2024-10-13 06:31:46,132 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 254 transitions. Word has length 140 [2024-10-13 06:31:46,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:46,132 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 254 transitions. [2024-10-13 06:31:46,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:46,133 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 254 transitions. [2024-10-13 06:31:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-13 06:31:46,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:46,134 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:46,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:31:46,134 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:46,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2017300935, now seen corresponding path program 1 times [2024-10-13 06:31:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:46,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289498350] [2024-10-13 06:31:46,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:46,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:47,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:47,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289498350] [2024-10-13 06:31:47,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289498350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:47,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:47,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:31:47,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245316249] [2024-10-13 06:31:47,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:47,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:31:47,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:47,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:31:47,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:31:47,249 INFO L87 Difference]: Start difference. First operand 178 states and 254 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:47,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:47,642 INFO L93 Difference]: Finished difference Result 411 states and 581 transitions. [2024-10-13 06:31:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:31:47,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2024-10-13 06:31:47,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:47,644 INFO L225 Difference]: With dead ends: 411 [2024-10-13 06:31:47,644 INFO L226 Difference]: Without dead ends: 234 [2024-10-13 06:31:47,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:31:47,645 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 72 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:47,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 816 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:31:47,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-13 06:31:47,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 231. [2024-10-13 06:31:47,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 192 states have (on average 1.328125) internal successors, (255), 194 states have internal predecessors, (255), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 06:31:47,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 325 transitions. [2024-10-13 06:31:47,666 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 325 transitions. Word has length 141 [2024-10-13 06:31:47,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:47,666 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 325 transitions. [2024-10-13 06:31:47,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 325 transitions. [2024-10-13 06:31:47,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-13 06:31:47,668 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:47,668 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:47,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:31:47,668 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:47,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2005029732, now seen corresponding path program 1 times [2024-10-13 06:31:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953066172] [2024-10-13 06:31:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:48,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:48,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953066172] [2024-10-13 06:31:48,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953066172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:48,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:48,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:31:48,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183454672] [2024-10-13 06:31:48,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:48,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:31:48,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:48,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:31:48,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:31:48,559 INFO L87 Difference]: Start difference. First operand 231 states and 325 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:48,756 INFO L93 Difference]: Finished difference Result 534 states and 750 transitions. [2024-10-13 06:31:48,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:31:48,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2024-10-13 06:31:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:48,758 INFO L225 Difference]: With dead ends: 534 [2024-10-13 06:31:48,758 INFO L226 Difference]: Without dead ends: 304 [2024-10-13 06:31:48,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:31:48,761 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 90 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:48,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 337 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:31:48,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-13 06:31:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 241. [2024-10-13 06:31:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 202 states have (on average 1.3267326732673268) internal successors, (268), 204 states have internal predecessors, (268), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 06:31:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 338 transitions. [2024-10-13 06:31:48,780 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 338 transitions. Word has length 141 [2024-10-13 06:31:48,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:48,781 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 338 transitions. [2024-10-13 06:31:48,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:31:48,782 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 338 transitions. [2024-10-13 06:31:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 06:31:48,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:48,783 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:48,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:31:48,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:48,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:48,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1216347448, now seen corresponding path program 1 times [2024-10-13 06:31:48,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:48,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237643131] [2024-10-13 06:31:48,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:48,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:49,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237643131] [2024-10-13 06:31:49,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237643131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:49,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:49,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:31:49,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973507347] [2024-10-13 06:31:49,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:49,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:31:49,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:49,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:31:49,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:31:49,744 INFO L87 Difference]: Start difference. First operand 241 states and 338 transitions. Second operand has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:31:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:50,381 INFO L93 Difference]: Finished difference Result 608 states and 843 transitions. [2024-10-13 06:31:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:31:50,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2024-10-13 06:31:50,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:50,384 INFO L225 Difference]: With dead ends: 608 [2024-10-13 06:31:50,384 INFO L226 Difference]: Without dead ends: 368 [2024-10-13 06:31:50,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:31:50,386 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 202 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:50,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 611 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:31:50,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-10-13 06:31:50,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 339. [2024-10-13 06:31:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 282 states have (on average 1.3085106382978724) internal successors, (369), 286 states have internal predecessors, (369), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-13 06:31:50,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 471 transitions. [2024-10-13 06:31:50,412 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 471 transitions. Word has length 142 [2024-10-13 06:31:50,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:50,415 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 471 transitions. [2024-10-13 06:31:50,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:31:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 471 transitions. [2024-10-13 06:31:50,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 06:31:50,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:50,417 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:50,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:31:50,417 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:50,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:50,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1636853817, now seen corresponding path program 1 times [2024-10-13 06:31:50,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:50,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267111191] [2024-10-13 06:31:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:50,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:51,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:51,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267111191] [2024-10-13 06:31:51,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267111191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:51,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:51,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:31:51,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415190447] [2024-10-13 06:31:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:51,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:31:51,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:51,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:31:51,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:31:51,658 INFO L87 Difference]: Start difference. First operand 339 states and 471 transitions. Second operand has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:31:52,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:52,153 INFO L93 Difference]: Finished difference Result 787 states and 1086 transitions. [2024-10-13 06:31:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:31:52,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2024-10-13 06:31:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:52,157 INFO L225 Difference]: With dead ends: 787 [2024-10-13 06:31:52,157 INFO L226 Difference]: Without dead ends: 449 [2024-10-13 06:31:52,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:31:52,161 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 56 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:52,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 893 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:31:52,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-10-13 06:31:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 445. [2024-10-13 06:31:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 378 states have (on average 1.3042328042328042) internal successors, (493), 384 states have internal predecessors, (493), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-10-13 06:31:52,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 611 transitions. [2024-10-13 06:31:52,184 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 611 transitions. Word has length 142 [2024-10-13 06:31:52,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:52,184 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 611 transitions. [2024-10-13 06:31:52,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:31:52,184 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 611 transitions. [2024-10-13 06:31:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 06:31:52,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:52,186 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:52,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 06:31:52,186 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:52,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1646996229, now seen corresponding path program 1 times [2024-10-13 06:31:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:52,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083980499] [2024-10-13 06:31:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:52,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:53,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:53,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083980499] [2024-10-13 06:31:53,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083980499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:53,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:53,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:31:53,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610319320] [2024-10-13 06:31:53,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:53,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:31:53,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:53,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:31:53,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:31:53,654 INFO L87 Difference]: Start difference. First operand 445 states and 611 transitions. Second operand has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:31:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:54,574 INFO L93 Difference]: Finished difference Result 982 states and 1330 transitions. [2024-10-13 06:31:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 06:31:54,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2024-10-13 06:31:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:54,578 INFO L225 Difference]: With dead ends: 982 [2024-10-13 06:31:54,578 INFO L226 Difference]: Without dead ends: 538 [2024-10-13 06:31:54,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:31:54,580 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 111 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:54,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 953 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 06:31:54,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-10-13 06:31:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 453. [2024-10-13 06:31:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 381 states have (on average 1.2913385826771653) internal successors, (492), 388 states have internal predecessors, (492), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 54 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 06:31:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 614 transitions. [2024-10-13 06:31:54,616 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 614 transitions. Word has length 142 [2024-10-13 06:31:54,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:54,616 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 614 transitions. [2024-10-13 06:31:54,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:31:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 614 transitions. [2024-10-13 06:31:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 06:31:54,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:54,619 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:54,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 06:31:54,620 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:54,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1770867323, now seen corresponding path program 1 times [2024-10-13 06:31:54,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:54,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849775242] [2024-10-13 06:31:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:54,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:56,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:56,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849775242] [2024-10-13 06:31:56,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849775242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:56,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:56,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:31:56,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548823148] [2024-10-13 06:31:56,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:56,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:31:56,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:56,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:31:56,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:31:56,276 INFO L87 Difference]: Start difference. First operand 453 states and 614 transitions. Second operand has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:31:57,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:57,447 INFO L93 Difference]: Finished difference Result 992 states and 1334 transitions. [2024-10-13 06:31:57,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:31:57,448 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2024-10-13 06:31:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:57,451 INFO L225 Difference]: With dead ends: 992 [2024-10-13 06:31:57,451 INFO L226 Difference]: Without dead ends: 548 [2024-10-13 06:31:57,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:31:57,453 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 155 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:57,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 774 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 06:31:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-10-13 06:31:57,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 465. [2024-10-13 06:31:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 394 states have (on average 1.2893401015228427) internal successors, (508), 400 states have internal predecessors, (508), 59 states have call successors, (59), 11 states have call predecessors, (59), 11 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-10-13 06:31:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 626 transitions. [2024-10-13 06:31:57,484 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 626 transitions. Word has length 142 [2024-10-13 06:31:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:57,484 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 626 transitions. [2024-10-13 06:31:57,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:31:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 626 transitions. [2024-10-13 06:31:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 06:31:57,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:57,485 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:57,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 06:31:57,486 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:57,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:57,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1512982723, now seen corresponding path program 1 times [2024-10-13 06:31:57,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886766876] [2024-10-13 06:31:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:57,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886766876] [2024-10-13 06:31:57,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886766876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:57,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:57,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:31:57,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964848806] [2024-10-13 06:31:57,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:57,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:31:57,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:57,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:31:57,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:31:57,796 INFO L87 Difference]: Start difference. First operand 465 states and 626 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:31:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:58,109 INFO L93 Difference]: Finished difference Result 1019 states and 1368 transitions. [2024-10-13 06:31:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:31:58,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2024-10-13 06:31:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:58,112 INFO L225 Difference]: With dead ends: 1019 [2024-10-13 06:31:58,112 INFO L226 Difference]: Without dead ends: 555 [2024-10-13 06:31:58,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:31:58,114 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 107 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:58,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 933 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:31:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-13 06:31:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 543. [2024-10-13 06:31:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 442 states have (on average 1.257918552036199) internal successors, (556), 449 states have internal predecessors, (556), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-10-13 06:31:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 724 transitions. [2024-10-13 06:31:58,158 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 724 transitions. Word has length 142 [2024-10-13 06:31:58,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:58,159 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 724 transitions. [2024-10-13 06:31:58,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:31:58,159 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 724 transitions. [2024-10-13 06:31:58,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 06:31:58,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:58,161 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:58,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 06:31:58,162 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:58,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:58,162 INFO L85 PathProgramCache]: Analyzing trace with hash -953218873, now seen corresponding path program 1 times [2024-10-13 06:31:58,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:58,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266610205] [2024-10-13 06:31:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:31:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:31:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:31:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:31:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:31:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:31:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:31:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:31:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:31:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:31:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:31:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:31:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:31:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:31:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:31:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:31:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:31:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:31:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:31:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:31:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:31:59,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:31:59,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266610205] [2024-10-13 06:31:59,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266610205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:31:59,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:31:59,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:31:59,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844655073] [2024-10-13 06:31:59,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:31:59,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:31:59,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:31:59,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:31:59,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:31:59,235 INFO L87 Difference]: Start difference. First operand 543 states and 724 transitions. Second operand has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:31:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:31:59,903 INFO L93 Difference]: Finished difference Result 1067 states and 1423 transitions. [2024-10-13 06:31:59,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:31:59,904 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2024-10-13 06:31:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:31:59,907 INFO L225 Difference]: With dead ends: 1067 [2024-10-13 06:31:59,907 INFO L226 Difference]: Without dead ends: 537 [2024-10-13 06:31:59,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:31:59,909 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 66 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:31:59,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 893 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:31:59,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-10-13 06:31:59,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 523. [2024-10-13 06:31:59,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 422 states have (on average 1.2535545023696681) internal successors, (529), 429 states have internal predecessors, (529), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-10-13 06:31:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 697 transitions. [2024-10-13 06:31:59,944 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 697 transitions. Word has length 142 [2024-10-13 06:31:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:31:59,945 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 697 transitions. [2024-10-13 06:31:59,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:31:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 697 transitions. [2024-10-13 06:31:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-13 06:31:59,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:31:59,947 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:31:59,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 06:31:59,947 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:31:59,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:31:59,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1115076427, now seen corresponding path program 1 times [2024-10-13 06:31:59,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:31:59,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739646169] [2024-10-13 06:31:59,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:31:59,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:31:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:00,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:00,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739646169] [2024-10-13 06:32:00,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739646169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:00,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:00,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:32:00,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836873049] [2024-10-13 06:32:00,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:00,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:32:00,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:00,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:32:00,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:32:00,103 INFO L87 Difference]: Start difference. First operand 523 states and 697 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:00,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:00,286 INFO L93 Difference]: Finished difference Result 1147 states and 1528 transitions. [2024-10-13 06:32:00,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:32:00,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2024-10-13 06:32:00,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:00,291 INFO L225 Difference]: With dead ends: 1147 [2024-10-13 06:32:00,291 INFO L226 Difference]: Without dead ends: 637 [2024-10-13 06:32:00,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:32:00,298 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 92 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:00,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 341 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:32:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-10-13 06:32:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 589. [2024-10-13 06:32:00,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 471 states have (on average 1.2441613588110403) internal successors, (586), 479 states have internal predecessors, (586), 98 states have call successors, (98), 19 states have call predecessors, (98), 19 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-10-13 06:32:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 782 transitions. [2024-10-13 06:32:00,348 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 782 transitions. Word has length 143 [2024-10-13 06:32:00,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:00,349 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 782 transitions. [2024-10-13 06:32:00,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:00,349 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 782 transitions. [2024-10-13 06:32:00,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-13 06:32:00,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:00,351 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:00,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 06:32:00,352 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:00,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1958049677, now seen corresponding path program 1 times [2024-10-13 06:32:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:00,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966258223] [2024-10-13 06:32:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:00,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:00,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:00,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966258223] [2024-10-13 06:32:00,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966258223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:00,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:00,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:32:00,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257492772] [2024-10-13 06:32:00,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:00,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:32:00,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:32:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:32:00,846 INFO L87 Difference]: Start difference. First operand 589 states and 782 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:01,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:01,174 INFO L93 Difference]: Finished difference Result 1168 states and 1550 transitions. [2024-10-13 06:32:01,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:32:01,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2024-10-13 06:32:01,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:01,177 INFO L225 Difference]: With dead ends: 1168 [2024-10-13 06:32:01,177 INFO L226 Difference]: Without dead ends: 604 [2024-10-13 06:32:01,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:01,179 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 86 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:01,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 384 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:01,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-10-13 06:32:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 552. [2024-10-13 06:32:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 441 states have (on average 1.2426303854875282) internal successors, (548), 448 states have internal predecessors, (548), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-10-13 06:32:01,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 732 transitions. [2024-10-13 06:32:01,210 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 732 transitions. Word has length 143 [2024-10-13 06:32:01,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:01,210 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 732 transitions. [2024-10-13 06:32:01,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:01,210 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 732 transitions. [2024-10-13 06:32:01,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-13 06:32:01,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:01,212 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:01,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 06:32:01,212 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:01,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:01,212 INFO L85 PathProgramCache]: Analyzing trace with hash 936981323, now seen corresponding path program 1 times [2024-10-13 06:32:01,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:01,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191598454] [2024-10-13 06:32:01,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:01,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:01,601 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:01,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:01,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191598454] [2024-10-13 06:32:01,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191598454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:01,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:01,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:32:01,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566097671] [2024-10-13 06:32:01,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:01,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:32:01,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:01,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:32:01,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:32:01,605 INFO L87 Difference]: Start difference. First operand 552 states and 732 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:01,900 INFO L93 Difference]: Finished difference Result 1079 states and 1428 transitions. [2024-10-13 06:32:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:32:01,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2024-10-13 06:32:01,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:01,903 INFO L225 Difference]: With dead ends: 1079 [2024-10-13 06:32:01,903 INFO L226 Difference]: Without dead ends: 552 [2024-10-13 06:32:01,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:01,905 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 58 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:01,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 562 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:32:01,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-13 06:32:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 549. [2024-10-13 06:32:01,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 437 states have (on average 1.2356979405034325) internal successors, (540), 444 states have internal predecessors, (540), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-10-13 06:32:01,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 724 transitions. [2024-10-13 06:32:01,939 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 724 transitions. Word has length 143 [2024-10-13 06:32:01,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:01,939 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 724 transitions. [2024-10-13 06:32:01,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:01,939 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 724 transitions. [2024-10-13 06:32:01,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-13 06:32:01,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:01,940 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:01,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 06:32:01,941 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:01,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:01,941 INFO L85 PathProgramCache]: Analyzing trace with hash -262064816, now seen corresponding path program 1 times [2024-10-13 06:32:01,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:01,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122378651] [2024-10-13 06:32:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:01,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:03,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:03,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122378651] [2024-10-13 06:32:03,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122378651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:03,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:03,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-13 06:32:03,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90862962] [2024-10-13 06:32:03,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:03,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 06:32:03,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:03,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 06:32:03,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-10-13 06:32:03,598 INFO L87 Difference]: Start difference. First operand 549 states and 724 transitions. Second operand has 18 states, 14 states have (on average 3.642857142857143) internal successors, (51), 18 states have internal predecessors, (51), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-13 06:32:05,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:05,227 INFO L93 Difference]: Finished difference Result 1358 states and 1799 transitions. [2024-10-13 06:32:05,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-13 06:32:05,228 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 3.642857142857143) internal successors, (51), 18 states have internal predecessors, (51), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 143 [2024-10-13 06:32:05,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:05,232 INFO L225 Difference]: With dead ends: 1358 [2024-10-13 06:32:05,232 INFO L226 Difference]: Without dead ends: 834 [2024-10-13 06:32:05,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 06:32:05,234 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 194 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:05,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1367 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 06:32:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-10-13 06:32:05,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 825. [2024-10-13 06:32:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 690 states have (on average 1.2681159420289856) internal successors, (875), 702 states have internal predecessors, (875), 110 states have call successors, (110), 24 states have call predecessors, (110), 24 states have return successors, (110), 98 states have call predecessors, (110), 110 states have call successors, (110) [2024-10-13 06:32:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1095 transitions. [2024-10-13 06:32:05,289 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1095 transitions. Word has length 143 [2024-10-13 06:32:05,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:05,290 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1095 transitions. [2024-10-13 06:32:05,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 3.642857142857143) internal successors, (51), 18 states have internal predecessors, (51), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-13 06:32:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1095 transitions. [2024-10-13 06:32:05,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-13 06:32:05,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:05,292 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:05,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 06:32:05,292 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:05,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1541928494, now seen corresponding path program 1 times [2024-10-13 06:32:05,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:05,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745739867] [2024-10-13 06:32:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:05,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:06,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:06,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745739867] [2024-10-13 06:32:06,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745739867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:06,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:06,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:32:06,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448366845] [2024-10-13 06:32:06,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:06,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:32:06,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:06,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:32:06,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:32:06,158 INFO L87 Difference]: Start difference. First operand 825 states and 1095 transitions. Second operand has 8 states, 6 states have (on average 8.5) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:06,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:06,611 INFO L93 Difference]: Finished difference Result 1958 states and 2609 transitions. [2024-10-13 06:32:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:32:06,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 143 [2024-10-13 06:32:06,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:06,617 INFO L225 Difference]: With dead ends: 1958 [2024-10-13 06:32:06,617 INFO L226 Difference]: Without dead ends: 1158 [2024-10-13 06:32:06,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:06,619 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 65 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:06,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 730 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:32:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-10-13 06:32:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 956. [2024-10-13 06:32:06,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 815 states have (on average 1.2858895705521471) internal successors, (1048), 829 states have internal predecessors, (1048), 114 states have call successors, (114), 26 states have call predecessors, (114), 26 states have return successors, (114), 100 states have call predecessors, (114), 114 states have call successors, (114) [2024-10-13 06:32:06,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1276 transitions. [2024-10-13 06:32:06,668 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1276 transitions. Word has length 143 [2024-10-13 06:32:06,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:06,668 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1276 transitions. [2024-10-13 06:32:06,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:06,669 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1276 transitions. [2024-10-13 06:32:06,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-13 06:32:06,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:06,670 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:06,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 06:32:06,671 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:06,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:06,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1479888880, now seen corresponding path program 1 times [2024-10-13 06:32:06,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:06,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409378143] [2024-10-13 06:32:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:06,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:07,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:07,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409378143] [2024-10-13 06:32:07,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409378143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:07,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:07,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:32:07,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23660860] [2024-10-13 06:32:07,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:07,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:32:07,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:32:07,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:32:07,292 INFO L87 Difference]: Start difference. First operand 956 states and 1276 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:07,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:07,837 INFO L93 Difference]: Finished difference Result 1903 states and 2540 transitions. [2024-10-13 06:32:07,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:32:07,837 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2024-10-13 06:32:07,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:07,842 INFO L225 Difference]: With dead ends: 1903 [2024-10-13 06:32:07,842 INFO L226 Difference]: Without dead ends: 972 [2024-10-13 06:32:07,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:32:07,844 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 80 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:07,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1036 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:32:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2024-10-13 06:32:07,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 948. [2024-10-13 06:32:07,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 807 states have (on average 1.2837670384138786) internal successors, (1036), 821 states have internal predecessors, (1036), 114 states have call successors, (114), 26 states have call predecessors, (114), 26 states have return successors, (114), 100 states have call predecessors, (114), 114 states have call successors, (114) [2024-10-13 06:32:07,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1264 transitions. [2024-10-13 06:32:07,886 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1264 transitions. Word has length 143 [2024-10-13 06:32:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:07,887 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1264 transitions. [2024-10-13 06:32:07,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:07,887 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1264 transitions. [2024-10-13 06:32:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-13 06:32:07,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:07,889 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:07,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 06:32:07,889 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:07,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:07,889 INFO L85 PathProgramCache]: Analyzing trace with hash 525455029, now seen corresponding path program 1 times [2024-10-13 06:32:07,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:07,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130608790] [2024-10-13 06:32:07,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:07,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:08,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:08,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130608790] [2024-10-13 06:32:08,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130608790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:08,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:08,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:32:08,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072612246] [2024-10-13 06:32:08,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:08,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:32:08,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:08,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:32:08,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:08,992 INFO L87 Difference]: Start difference. First operand 948 states and 1264 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:09,422 INFO L93 Difference]: Finished difference Result 2009 states and 2672 transitions. [2024-10-13 06:32:09,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:32:09,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 144 [2024-10-13 06:32:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:09,428 INFO L225 Difference]: With dead ends: 2009 [2024-10-13 06:32:09,428 INFO L226 Difference]: Without dead ends: 1086 [2024-10-13 06:32:09,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:32:09,431 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 54 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:09,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 801 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:09,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-10-13 06:32:09,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 928. [2024-10-13 06:32:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 787 states have (on average 1.273189326556544) internal successors, (1002), 801 states have internal predecessors, (1002), 114 states have call successors, (114), 26 states have call predecessors, (114), 26 states have return successors, (114), 100 states have call predecessors, (114), 114 states have call successors, (114) [2024-10-13 06:32:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1230 transitions. [2024-10-13 06:32:09,504 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1230 transitions. Word has length 144 [2024-10-13 06:32:09,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:09,504 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1230 transitions. [2024-10-13 06:32:09,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:09,505 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1230 transitions. [2024-10-13 06:32:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-13 06:32:09,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:09,506 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:09,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 06:32:09,507 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:09,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:09,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1518165596, now seen corresponding path program 1 times [2024-10-13 06:32:09,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:09,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428375523] [2024-10-13 06:32:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:09,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:10,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428375523] [2024-10-13 06:32:10,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428375523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:10,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:10,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:32:10,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561404268] [2024-10-13 06:32:10,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:10,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:32:10,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:10,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:32:10,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:32:10,089 INFO L87 Difference]: Start difference. First operand 928 states and 1230 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:10,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:10,348 INFO L93 Difference]: Finished difference Result 1733 states and 2292 transitions. [2024-10-13 06:32:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:32:10,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-10-13 06:32:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:10,353 INFO L225 Difference]: With dead ends: 1733 [2024-10-13 06:32:10,353 INFO L226 Difference]: Without dead ends: 830 [2024-10-13 06:32:10,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:10,357 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 49 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:10,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 513 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:32:10,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-13 06:32:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 828. [2024-10-13 06:32:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 691 states have (on average 1.2489146164978293) internal successors, (863), 703 states have internal predecessors, (863), 110 states have call successors, (110), 26 states have call predecessors, (110), 26 states have return successors, (110), 98 states have call predecessors, (110), 110 states have call successors, (110) [2024-10-13 06:32:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1083 transitions. [2024-10-13 06:32:10,406 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1083 transitions. Word has length 144 [2024-10-13 06:32:10,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:10,406 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1083 transitions. [2024-10-13 06:32:10,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:10,407 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1083 transitions. [2024-10-13 06:32:10,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:10,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:10,408 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:10,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 06:32:10,408 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:10,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:10,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1622224434, now seen corresponding path program 1 times [2024-10-13 06:32:10,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:10,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69436460] [2024-10-13 06:32:10,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:10,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:11,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:11,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69436460] [2024-10-13 06:32:11,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69436460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:11,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:11,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-13 06:32:11,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150072017] [2024-10-13 06:32:11,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:11,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 06:32:11,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:11,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 06:32:11,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:32:11,810 INFO L87 Difference]: Start difference. First operand 828 states and 1083 transitions. Second operand has 15 states, 12 states have (on average 4.416666666666667) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:12,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:12,818 INFO L93 Difference]: Finished difference Result 1925 states and 2499 transitions. [2024-10-13 06:32:12,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 06:32:12,819 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.416666666666667) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2024-10-13 06:32:12,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:12,825 INFO L225 Difference]: With dead ends: 1925 [2024-10-13 06:32:12,825 INFO L226 Difference]: Without dead ends: 1122 [2024-10-13 06:32:12,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-10-13 06:32:12,828 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 166 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:12,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1656 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 06:32:12,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-10-13 06:32:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 892. [2024-10-13 06:32:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 749 states have (on average 1.2309746328437918) internal successors, (922), 760 states have internal predecessors, (922), 112 states have call successors, (112), 30 states have call predecessors, (112), 30 states have return successors, (112), 101 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-13 06:32:12,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1146 transitions. [2024-10-13 06:32:12,886 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1146 transitions. Word has length 145 [2024-10-13 06:32:12,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:12,886 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1146 transitions. [2024-10-13 06:32:12,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.416666666666667) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:12,887 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1146 transitions. [2024-10-13 06:32:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:12,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:12,888 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:12,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 06:32:12,888 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:12,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1005498837, now seen corresponding path program 1 times [2024-10-13 06:32:12,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:12,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176858140] [2024-10-13 06:32:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:12,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:14,370 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:14,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:14,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176858140] [2024-10-13 06:32:14,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176858140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:14,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:14,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-13 06:32:14,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728074193] [2024-10-13 06:32:14,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:14,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 06:32:14,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:14,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 06:32:14,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:32:14,374 INFO L87 Difference]: Start difference. First operand 892 states and 1146 transitions. Second operand has 15 states, 12 states have (on average 4.416666666666667) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:15,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:15,430 INFO L93 Difference]: Finished difference Result 1945 states and 2500 transitions. [2024-10-13 06:32:15,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 06:32:15,431 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.416666666666667) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2024-10-13 06:32:15,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:15,437 INFO L225 Difference]: With dead ends: 1945 [2024-10-13 06:32:15,437 INFO L226 Difference]: Without dead ends: 1078 [2024-10-13 06:32:15,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-10-13 06:32:15,440 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:15,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1146 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 06:32:15,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-10-13 06:32:15,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 894. [2024-10-13 06:32:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 751 states have (on average 1.2276964047936085) internal successors, (922), 762 states have internal predecessors, (922), 112 states have call successors, (112), 30 states have call predecessors, (112), 30 states have return successors, (112), 101 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-13 06:32:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1146 transitions. [2024-10-13 06:32:15,498 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1146 transitions. Word has length 145 [2024-10-13 06:32:15,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:15,498 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1146 transitions. [2024-10-13 06:32:15,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.416666666666667) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:15,499 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1146 transitions. [2024-10-13 06:32:15,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:15,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:15,500 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:15,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 06:32:15,500 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:15,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1870399031, now seen corresponding path program 1 times [2024-10-13 06:32:15,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:15,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099190899] [2024-10-13 06:32:15,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:15,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:16,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:16,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:16,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099190899] [2024-10-13 06:32:16,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099190899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:16,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:16,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:32:16,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768261010] [2024-10-13 06:32:16,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:16,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:32:16,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:32:16,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:16,288 INFO L87 Difference]: Start difference. First operand 894 states and 1146 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:16,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:16,745 INFO L93 Difference]: Finished difference Result 2106 states and 2695 transitions. [2024-10-13 06:32:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:32:16,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2024-10-13 06:32:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:16,751 INFO L225 Difference]: With dead ends: 2106 [2024-10-13 06:32:16,751 INFO L226 Difference]: Without dead ends: 1237 [2024-10-13 06:32:16,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:32:16,754 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 102 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:16,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 731 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:32:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2024-10-13 06:32:16,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 901. [2024-10-13 06:32:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 758 states have (on average 1.225593667546174) internal successors, (929), 769 states have internal predecessors, (929), 112 states have call successors, (112), 30 states have call predecessors, (112), 30 states have return successors, (112), 101 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-13 06:32:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1153 transitions. [2024-10-13 06:32:16,818 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1153 transitions. Word has length 145 [2024-10-13 06:32:16,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:16,818 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1153 transitions. [2024-10-13 06:32:16,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1153 transitions. [2024-10-13 06:32:16,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:16,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:16,820 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:16,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 06:32:16,820 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:16,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:16,821 INFO L85 PathProgramCache]: Analyzing trace with hash -859281781, now seen corresponding path program 1 times [2024-10-13 06:32:16,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:16,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640462537] [2024-10-13 06:32:16,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:16,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:18,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:18,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640462537] [2024-10-13 06:32:18,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640462537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:18,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:18,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-13 06:32:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649444798] [2024-10-13 06:32:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:18,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 06:32:18,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:18,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 06:32:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:32:18,235 INFO L87 Difference]: Start difference. First operand 901 states and 1153 transitions. Second operand has 15 states, 11 states have (on average 4.818181818181818) internal successors, (53), 15 states have internal predecessors, (53), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-13 06:32:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:19,162 INFO L93 Difference]: Finished difference Result 1936 states and 2471 transitions. [2024-10-13 06:32:19,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 06:32:19,167 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 4.818181818181818) internal successors, (53), 15 states have internal predecessors, (53), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 145 [2024-10-13 06:32:19,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:19,172 INFO L225 Difference]: With dead ends: 1936 [2024-10-13 06:32:19,173 INFO L226 Difference]: Without dead ends: 1060 [2024-10-13 06:32:19,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:32:19,175 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 96 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:19,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1308 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 06:32:19,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2024-10-13 06:32:19,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 905. [2024-10-13 06:32:19,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 762 states have (on average 1.2230971128608923) internal successors, (932), 773 states have internal predecessors, (932), 112 states have call successors, (112), 30 states have call predecessors, (112), 30 states have return successors, (112), 101 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-13 06:32:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1156 transitions. [2024-10-13 06:32:19,236 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1156 transitions. Word has length 145 [2024-10-13 06:32:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:19,236 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1156 transitions. [2024-10-13 06:32:19,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 4.818181818181818) internal successors, (53), 15 states have internal predecessors, (53), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-13 06:32:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1156 transitions. [2024-10-13 06:32:19,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:19,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:19,238 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:19,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-13 06:32:19,238 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:19,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash 496025747, now seen corresponding path program 1 times [2024-10-13 06:32:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:19,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247120968] [2024-10-13 06:32:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:19,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:19,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:19,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247120968] [2024-10-13 06:32:19,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247120968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:19,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:19,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:32:19,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097132273] [2024-10-13 06:32:19,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:19,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:32:19,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:32:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:32:19,981 INFO L87 Difference]: Start difference. First operand 905 states and 1156 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:20,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:20,664 INFO L93 Difference]: Finished difference Result 1963 states and 2507 transitions. [2024-10-13 06:32:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:32:20,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-10-13 06:32:20,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:20,669 INFO L225 Difference]: With dead ends: 1963 [2024-10-13 06:32:20,669 INFO L226 Difference]: Without dead ends: 1083 [2024-10-13 06:32:20,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:32:20,670 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 164 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:20,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 891 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:32:20,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-10-13 06:32:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 877. [2024-10-13 06:32:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 744 states have (on average 1.2258064516129032) internal successors, (912), 754 states have internal predecessors, (912), 104 states have call successors, (104), 28 states have call predecessors, (104), 28 states have return successors, (104), 94 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-13 06:32:20,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1120 transitions. [2024-10-13 06:32:20,728 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1120 transitions. Word has length 145 [2024-10-13 06:32:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:20,729 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1120 transitions. [2024-10-13 06:32:20,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:20,729 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1120 transitions. [2024-10-13 06:32:20,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:20,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:20,730 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:20,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 06:32:20,730 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:20,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:20,731 INFO L85 PathProgramCache]: Analyzing trace with hash -783837931, now seen corresponding path program 1 times [2024-10-13 06:32:20,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:20,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531728665] [2024-10-13 06:32:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:20,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:21,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:21,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531728665] [2024-10-13 06:32:21,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531728665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:21,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:21,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:32:21,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717263979] [2024-10-13 06:32:21,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:21,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:32:21,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:21,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:32:21,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:21,255 INFO L87 Difference]: Start difference. First operand 877 states and 1120 transitions. Second operand has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:21,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:21,600 INFO L93 Difference]: Finished difference Result 1884 states and 2398 transitions. [2024-10-13 06:32:21,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:32:21,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2024-10-13 06:32:21,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:21,605 INFO L225 Difference]: With dead ends: 1884 [2024-10-13 06:32:21,605 INFO L226 Difference]: Without dead ends: 1008 [2024-10-13 06:32:21,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:32:21,607 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 61 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:21,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 498 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-10-13 06:32:21,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 794. [2024-10-13 06:32:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 671 states have (on average 1.2205663189269746) internal successors, (819), 679 states have internal predecessors, (819), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-13 06:32:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1011 transitions. [2024-10-13 06:32:21,675 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1011 transitions. Word has length 145 [2024-10-13 06:32:21,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:21,675 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1011 transitions. [2024-10-13 06:32:21,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1011 transitions. [2024-10-13 06:32:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:21,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:21,677 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:21,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-13 06:32:21,677 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:21,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:21,677 INFO L85 PathProgramCache]: Analyzing trace with hash -643289321, now seen corresponding path program 1 times [2024-10-13 06:32:21,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:21,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872943385] [2024-10-13 06:32:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:21,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:22,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:22,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872943385] [2024-10-13 06:32:22,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872943385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:22,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:22,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:32:22,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555277003] [2024-10-13 06:32:22,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:22,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:32:22,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:22,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:32:22,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:22,083 INFO L87 Difference]: Start difference. First operand 794 states and 1011 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:22,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:22,503 INFO L93 Difference]: Finished difference Result 1724 states and 2194 transitions. [2024-10-13 06:32:22,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:32:22,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-10-13 06:32:22,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:22,507 INFO L225 Difference]: With dead ends: 1724 [2024-10-13 06:32:22,508 INFO L226 Difference]: Without dead ends: 931 [2024-10-13 06:32:22,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:32:22,509 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 65 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:22,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 788 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-10-13 06:32:22,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 794. [2024-10-13 06:32:22,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 671 states have (on average 1.2190760059612518) internal successors, (818), 679 states have internal predecessors, (818), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-13 06:32:22,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1010 transitions. [2024-10-13 06:32:22,565 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1010 transitions. Word has length 145 [2024-10-13 06:32:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:22,565 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1010 transitions. [2024-10-13 06:32:22,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:22,566 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1010 transitions. [2024-10-13 06:32:22,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:22,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:22,567 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:22,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-13 06:32:22,567 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:22,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:22,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1915095175, now seen corresponding path program 1 times [2024-10-13 06:32:22,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:22,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767015052] [2024-10-13 06:32:22,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:22,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:22,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:22,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767015052] [2024-10-13 06:32:22,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767015052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:22,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:22,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:32:22,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625079717] [2024-10-13 06:32:22,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:22,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:32:22,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:22,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:32:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:32:22,965 INFO L87 Difference]: Start difference. First operand 794 states and 1010 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:23,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:23,549 INFO L93 Difference]: Finished difference Result 1946 states and 2467 transitions. [2024-10-13 06:32:23,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:32:23,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2024-10-13 06:32:23,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:23,554 INFO L225 Difference]: With dead ends: 1946 [2024-10-13 06:32:23,555 INFO L226 Difference]: Without dead ends: 1153 [2024-10-13 06:32:23,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:32:23,557 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 113 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:23,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 600 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:32:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-10-13 06:32:23,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 801. [2024-10-13 06:32:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 678 states have (on average 1.21976401179941) internal successors, (827), 686 states have internal predecessors, (827), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-13 06:32:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1019 transitions. [2024-10-13 06:32:23,623 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1019 transitions. Word has length 145 [2024-10-13 06:32:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:23,623 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1019 transitions. [2024-10-13 06:32:23,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:23,624 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1019 transitions. [2024-10-13 06:32:23,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:23,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:23,625 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:23,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-13 06:32:23,625 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:23,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1368754871, now seen corresponding path program 1 times [2024-10-13 06:32:23,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:23,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833776862] [2024-10-13 06:32:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:23,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:25,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:25,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833776862] [2024-10-13 06:32:25,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833776862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:25,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:25,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:32:25,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249592482] [2024-10-13 06:32:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:25,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:32:25,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:32:25,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:32:25,122 INFO L87 Difference]: Start difference. First operand 801 states and 1019 transitions. Second operand has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:26,493 INFO L93 Difference]: Finished difference Result 1813 states and 2304 transitions. [2024-10-13 06:32:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 06:32:26,494 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2024-10-13 06:32:26,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:26,498 INFO L225 Difference]: With dead ends: 1813 [2024-10-13 06:32:26,498 INFO L226 Difference]: Without dead ends: 1013 [2024-10-13 06:32:26,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:32:26,500 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 152 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:26,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1032 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 06:32:26,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2024-10-13 06:32:26,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 809. [2024-10-13 06:32:26,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 686 states have (on average 1.2230320699708455) internal successors, (839), 694 states have internal predecessors, (839), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-13 06:32:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1031 transitions. [2024-10-13 06:32:26,573 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1031 transitions. Word has length 145 [2024-10-13 06:32:26,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:26,574 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1031 transitions. [2024-10-13 06:32:26,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:26,574 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1031 transitions. [2024-10-13 06:32:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:26,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:26,577 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:26,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-13 06:32:26,577 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:26,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:26,578 INFO L85 PathProgramCache]: Analyzing trace with hash 326747273, now seen corresponding path program 1 times [2024-10-13 06:32:26,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:26,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490310872] [2024-10-13 06:32:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:26,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:27,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:27,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490310872] [2024-10-13 06:32:27,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490310872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:27,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:27,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:32:27,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890176567] [2024-10-13 06:32:27,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:27,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:32:27,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:27,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:32:27,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:27,045 INFO L87 Difference]: Start difference. First operand 809 states and 1031 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:27,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:27,389 INFO L93 Difference]: Finished difference Result 1749 states and 2225 transitions. [2024-10-13 06:32:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:32:27,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-10-13 06:32:27,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:27,394 INFO L225 Difference]: With dead ends: 1749 [2024-10-13 06:32:27,395 INFO L226 Difference]: Without dead ends: 941 [2024-10-13 06:32:27,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:32:27,397 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 64 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:27,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 720 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:32:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-10-13 06:32:27,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 809. [2024-10-13 06:32:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 686 states have (on average 1.2215743440233235) internal successors, (838), 694 states have internal predecessors, (838), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-13 06:32:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1030 transitions. [2024-10-13 06:32:27,462 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1030 transitions. Word has length 145 [2024-10-13 06:32:27,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:27,463 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1030 transitions. [2024-10-13 06:32:27,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1030 transitions. [2024-10-13 06:32:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-13 06:32:27,464 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:27,464 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:27,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-13 06:32:27,465 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:27,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1791456697, now seen corresponding path program 1 times [2024-10-13 06:32:27,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735599362] [2024-10-13 06:32:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:28,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:28,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735599362] [2024-10-13 06:32:28,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735599362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:28,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:28,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:32:28,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221983139] [2024-10-13 06:32:28,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:28,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:32:28,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:28,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:32:28,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:32:28,573 INFO L87 Difference]: Start difference. First operand 809 states and 1030 transitions. Second operand has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:29,262 INFO L93 Difference]: Finished difference Result 1705 states and 2168 transitions. [2024-10-13 06:32:29,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 06:32:29,263 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2024-10-13 06:32:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:29,267 INFO L225 Difference]: With dead ends: 1705 [2024-10-13 06:32:29,267 INFO L226 Difference]: Without dead ends: 897 [2024-10-13 06:32:29,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:32:29,269 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 52 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:29,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1036 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:32:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-10-13 06:32:29,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 785. [2024-10-13 06:32:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 662 states have (on average 1.2145015105740182) internal successors, (804), 670 states have internal predecessors, (804), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-13 06:32:29,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 996 transitions. [2024-10-13 06:32:29,345 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 996 transitions. Word has length 145 [2024-10-13 06:32:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:29,346 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 996 transitions. [2024-10-13 06:32:29,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-13 06:32:29,346 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 996 transitions. [2024-10-13 06:32:29,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-13 06:32:29,347 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:29,347 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:29,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-13 06:32:29,348 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:29,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:29,348 INFO L85 PathProgramCache]: Analyzing trace with hash 307098465, now seen corresponding path program 1 times [2024-10-13 06:32:29,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:29,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413326268] [2024-10-13 06:32:29,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:29,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:30,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:30,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413326268] [2024-10-13 06:32:30,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413326268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:30,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:30,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:32:30,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375963755] [2024-10-13 06:32:30,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:30,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:32:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:30,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:32:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:32:30,570 INFO L87 Difference]: Start difference. First operand 785 states and 996 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:31,175 INFO L93 Difference]: Finished difference Result 1599 states and 2027 transitions. [2024-10-13 06:32:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:32:31,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-10-13 06:32:31,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:31,181 INFO L225 Difference]: With dead ends: 1599 [2024-10-13 06:32:31,181 INFO L226 Difference]: Without dead ends: 815 [2024-10-13 06:32:31,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:32:31,183 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 68 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:31,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1084 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:32:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-10-13 06:32:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 732. [2024-10-13 06:32:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 609 states have (on average 1.2216748768472907) internal successors, (744), 617 states have internal predecessors, (744), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-13 06:32:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 936 transitions. [2024-10-13 06:32:31,251 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 936 transitions. Word has length 146 [2024-10-13 06:32:31,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:31,252 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 936 transitions. [2024-10-13 06:32:31,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:31,252 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 936 transitions. [2024-10-13 06:32:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-13 06:32:31,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:31,253 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:31,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-13 06:32:31,253 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:31,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:31,254 INFO L85 PathProgramCache]: Analyzing trace with hash 192061882, now seen corresponding path program 1 times [2024-10-13 06:32:31,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:31,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312211226] [2024-10-13 06:32:31,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:31,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:31,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:31,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312211226] [2024-10-13 06:32:31,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312211226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:31,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:31,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:32:31,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299028492] [2024-10-13 06:32:31,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:31,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:32:31,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:31,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:32:31,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:31,722 INFO L87 Difference]: Start difference. First operand 732 states and 936 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:32,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:32,193 INFO L93 Difference]: Finished difference Result 1464 states and 1867 transitions. [2024-10-13 06:32:32,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:32:32,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-10-13 06:32:32,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:32,201 INFO L225 Difference]: With dead ends: 1464 [2024-10-13 06:32:32,202 INFO L226 Difference]: Without dead ends: 733 [2024-10-13 06:32:32,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:32:32,203 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 142 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:32,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 482 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:32:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-10-13 06:32:32,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 640. [2024-10-13 06:32:32,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 542 states have (on average 1.2287822878228782) internal successors, (666), 549 states have internal predecessors, (666), 75 states have call successors, (75), 22 states have call predecessors, (75), 22 states have return successors, (75), 68 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-13 06:32:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 816 transitions. [2024-10-13 06:32:32,267 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 816 transitions. Word has length 146 [2024-10-13 06:32:32,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:32,268 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 816 transitions. [2024-10-13 06:32:32,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 816 transitions. [2024-10-13 06:32:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-13 06:32:32,269 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:32,270 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:32,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-13 06:32:32,270 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:32,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:32,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1324492850, now seen corresponding path program 1 times [2024-10-13 06:32:32,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:32,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168046430] [2024-10-13 06:32:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:32,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:32,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168046430] [2024-10-13 06:32:32,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168046430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:32,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:32,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:32:32,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732015860] [2024-10-13 06:32:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:32,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:32:32,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:32:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:32:32,430 INFO L87 Difference]: Start difference. First operand 640 states and 816 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:32,654 INFO L93 Difference]: Finished difference Result 1398 states and 1776 transitions. [2024-10-13 06:32:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:32:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-10-13 06:32:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:32,659 INFO L225 Difference]: With dead ends: 1398 [2024-10-13 06:32:32,659 INFO L226 Difference]: Without dead ends: 759 [2024-10-13 06:32:32,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:32:32,661 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 86 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:32,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 379 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:32:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-10-13 06:32:32,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 699. [2024-10-13 06:32:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 590 states have (on average 1.2203389830508475) internal successors, (720), 598 states have internal predecessors, (720), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-13 06:32:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 886 transitions. [2024-10-13 06:32:32,737 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 886 transitions. Word has length 146 [2024-10-13 06:32:32,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:32,737 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 886 transitions. [2024-10-13 06:32:32,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 886 transitions. [2024-10-13 06:32:32,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-13 06:32:32,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:32,739 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:32,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-13 06:32:32,739 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:32,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:32,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2142141300, now seen corresponding path program 1 times [2024-10-13 06:32:32,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:32,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488320662] [2024-10-13 06:32:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:32,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:33,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:33,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488320662] [2024-10-13 06:32:33,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488320662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:33,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:33,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:32:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907311858] [2024-10-13 06:32:33,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:33,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:32:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:32:33,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:33,178 INFO L87 Difference]: Start difference. First operand 699 states and 886 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:33,586 INFO L93 Difference]: Finished difference Result 1388 states and 1760 transitions. [2024-10-13 06:32:33,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:32:33,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-10-13 06:32:33,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:33,591 INFO L225 Difference]: With dead ends: 1388 [2024-10-13 06:32:33,592 INFO L226 Difference]: Without dead ends: 690 [2024-10-13 06:32:33,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:32:33,594 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 140 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:33,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 464 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-10-13 06:32:33,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 672. [2024-10-13 06:32:33,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 563 states have (on average 1.2202486678507993) internal successors, (687), 571 states have internal predecessors, (687), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-13 06:32:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 853 transitions. [2024-10-13 06:32:33,663 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 853 transitions. Word has length 146 [2024-10-13 06:32:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:33,663 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 853 transitions. [2024-10-13 06:32:33,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 853 transitions. [2024-10-13 06:32:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-13 06:32:33,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:33,664 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:33,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-13 06:32:33,665 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:33,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:33,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1416225108, now seen corresponding path program 1 times [2024-10-13 06:32:33,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:33,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961402502] [2024-10-13 06:32:33,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:33,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:34,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:34,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961402502] [2024-10-13 06:32:34,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961402502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:34,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:34,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:32:34,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484238067] [2024-10-13 06:32:34,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:34,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:32:34,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:34,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:32:34,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:34,264 INFO L87 Difference]: Start difference. First operand 672 states and 853 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:34,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:34,731 INFO L93 Difference]: Finished difference Result 1457 states and 1844 transitions. [2024-10-13 06:32:34,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:32:34,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-10-13 06:32:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:34,735 INFO L225 Difference]: With dead ends: 1457 [2024-10-13 06:32:34,735 INFO L226 Difference]: Without dead ends: 786 [2024-10-13 06:32:34,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:32:34,737 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 65 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:34,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 835 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:34,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-10-13 06:32:34,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 668. [2024-10-13 06:32:34,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 559 states have (on average 1.2182468694096602) internal successors, (681), 567 states have internal predecessors, (681), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-13 06:32:34,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 847 transitions. [2024-10-13 06:32:34,809 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 847 transitions. Word has length 146 [2024-10-13 06:32:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:34,809 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 847 transitions. [2024-10-13 06:32:34,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 847 transitions. [2024-10-13 06:32:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:34,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:34,810 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:34,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-13 06:32:34,811 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:34,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash 29517472, now seen corresponding path program 1 times [2024-10-13 06:32:34,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:34,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731430721] [2024-10-13 06:32:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:34,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:35,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:35,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731430721] [2024-10-13 06:32:35,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731430721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:35,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:35,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:32:35,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631766401] [2024-10-13 06:32:35,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:35,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:32:35,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:35,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:32:35,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:32:35,667 INFO L87 Difference]: Start difference. First operand 668 states and 847 transitions. Second operand has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:36,014 INFO L93 Difference]: Finished difference Result 1746 states and 2208 transitions. [2024-10-13 06:32:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:32:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-10-13 06:32:36,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:36,019 INFO L225 Difference]: With dead ends: 1746 [2024-10-13 06:32:36,019 INFO L226 Difference]: Without dead ends: 1079 [2024-10-13 06:32:36,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:36,021 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 47 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:36,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 492 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:32:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-10-13 06:32:36,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 894. [2024-10-13 06:32:36,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 782 states have (on average 1.2161125319693096) internal successors, (951), 791 states have internal predecessors, (951), 85 states have call successors, (85), 26 states have call predecessors, (85), 26 states have return successors, (85), 76 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-13 06:32:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1121 transitions. [2024-10-13 06:32:36,095 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1121 transitions. Word has length 147 [2024-10-13 06:32:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:36,095 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1121 transitions. [2024-10-13 06:32:36,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1121 transitions. [2024-10-13 06:32:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:36,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:36,098 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:36,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-13 06:32:36,098 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:36,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:36,099 INFO L85 PathProgramCache]: Analyzing trace with hash -363509538, now seen corresponding path program 1 times [2024-10-13 06:32:36,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:36,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325965063] [2024-10-13 06:32:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:36,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:38,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:38,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325965063] [2024-10-13 06:32:38,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325965063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:38,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:38,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-13 06:32:38,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824831128] [2024-10-13 06:32:38,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:38,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 06:32:38,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:38,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 06:32:38,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:32:38,822 INFO L87 Difference]: Start difference. First operand 894 states and 1121 transitions. Second operand has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:40,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:40,737 INFO L93 Difference]: Finished difference Result 933 states and 1167 transitions. [2024-10-13 06:32:40,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 06:32:40,738 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-10-13 06:32:40,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:40,744 INFO L225 Difference]: With dead ends: 933 [2024-10-13 06:32:40,744 INFO L226 Difference]: Without dead ends: 931 [2024-10-13 06:32:40,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-10-13 06:32:40,745 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 360 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:40,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 877 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 06:32:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-10-13 06:32:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 832. [2024-10-13 06:32:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 730 states have (on average 1.2164383561643837) internal successors, (888), 737 states have internal predecessors, (888), 77 states have call successors, (77), 24 states have call predecessors, (77), 24 states have return successors, (77), 70 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-13 06:32:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1042 transitions. [2024-10-13 06:32:40,824 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1042 transitions. Word has length 147 [2024-10-13 06:32:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:40,825 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1042 transitions. [2024-10-13 06:32:40,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1042 transitions. [2024-10-13 06:32:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:40,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:40,827 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:40,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-13 06:32:40,827 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:40,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:40,827 INFO L85 PathProgramCache]: Analyzing trace with hash -363449956, now seen corresponding path program 1 times [2024-10-13 06:32:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540067386] [2024-10-13 06:32:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:40,992 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:40,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:40,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540067386] [2024-10-13 06:32:40,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540067386] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:40,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:40,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:32:40,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947558725] [2024-10-13 06:32:40,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:40,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:32:40,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:40,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:32:40,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:32:40,994 INFO L87 Difference]: Start difference. First operand 832 states and 1042 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:41,229 INFO L93 Difference]: Finished difference Result 1718 states and 2150 transitions. [2024-10-13 06:32:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:32:41,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-13 06:32:41,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:41,234 INFO L225 Difference]: With dead ends: 1718 [2024-10-13 06:32:41,234 INFO L226 Difference]: Without dead ends: 887 [2024-10-13 06:32:41,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:41,235 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 83 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:41,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 470 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:32:41,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-10-13 06:32:41,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 886. [2024-10-13 06:32:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 762 states have (on average 1.1968503937007875) internal successors, (912), 770 states have internal predecessors, (912), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-10-13 06:32:41,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1100 transitions. [2024-10-13 06:32:41,327 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1100 transitions. Word has length 147 [2024-10-13 06:32:41,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:41,327 INFO L471 AbstractCegarLoop]: Abstraction has 886 states and 1100 transitions. [2024-10-13 06:32:41,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1100 transitions. [2024-10-13 06:32:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:41,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:41,329 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:41,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-13 06:32:41,329 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:41,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash -306191654, now seen corresponding path program 1 times [2024-10-13 06:32:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319909302] [2024-10-13 06:32:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:41,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:41,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:41,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319909302] [2024-10-13 06:32:41,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319909302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:41,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:41,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:32:41,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006682540] [2024-10-13 06:32:41,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:41,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:32:41,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:41,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:32:41,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:32:41,436 INFO L87 Difference]: Start difference. First operand 886 states and 1100 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:41,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:41,542 INFO L93 Difference]: Finished difference Result 1745 states and 2168 transitions. [2024-10-13 06:32:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:32:41,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-13 06:32:41,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:41,546 INFO L225 Difference]: With dead ends: 1745 [2024-10-13 06:32:41,547 INFO L226 Difference]: Without dead ends: 910 [2024-10-13 06:32:41,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:32:41,548 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:41,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 518 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:32:41,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-10-13 06:32:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2024-10-13 06:32:41,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 786 states have (on average 1.1908396946564885) internal successors, (936), 794 states have internal predecessors, (936), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-10-13 06:32:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1124 transitions. [2024-10-13 06:32:41,636 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1124 transitions. Word has length 147 [2024-10-13 06:32:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:41,636 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1124 transitions. [2024-10-13 06:32:41,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1124 transitions. [2024-10-13 06:32:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:41,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:41,638 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:41,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-13 06:32:41,638 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:41,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:41,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1793643984, now seen corresponding path program 1 times [2024-10-13 06:32:41,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:41,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748801899] [2024-10-13 06:32:41,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:41,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:42,598 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:42,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:42,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748801899] [2024-10-13 06:32:42,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748801899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:42,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:42,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:32:42,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216303939] [2024-10-13 06:32:42,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:42,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:32:42,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:42,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:32:42,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:32:42,600 INFO L87 Difference]: Start difference. First operand 910 states and 1124 transitions. Second operand has 14 states, 12 states have (on average 4.583333333333333) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:43,195 INFO L93 Difference]: Finished difference Result 1907 states and 2348 transitions. [2024-10-13 06:32:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 06:32:43,196 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.583333333333333) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-10-13 06:32:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:43,199 INFO L225 Difference]: With dead ends: 1907 [2024-10-13 06:32:43,199 INFO L226 Difference]: Without dead ends: 1048 [2024-10-13 06:32:43,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:32:43,201 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 50 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:43,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1235 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:32:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-10-13 06:32:43,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 962. [2024-10-13 06:32:43,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 838 states have (on average 1.192124105011933) internal successors, (999), 846 states have internal predecessors, (999), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-10-13 06:32:43,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1187 transitions. [2024-10-13 06:32:43,285 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1187 transitions. Word has length 147 [2024-10-13 06:32:43,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:43,286 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1187 transitions. [2024-10-13 06:32:43,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.583333333333333) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:43,286 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1187 transitions. [2024-10-13 06:32:43,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:43,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:43,287 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:43,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-13 06:32:43,288 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:43,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:43,288 INFO L85 PathProgramCache]: Analyzing trace with hash -578095278, now seen corresponding path program 1 times [2024-10-13 06:32:43,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:43,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423375832] [2024-10-13 06:32:43,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:43,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:43,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:43,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423375832] [2024-10-13 06:32:43,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423375832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:43,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:43,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:32:43,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872213317] [2024-10-13 06:32:43,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:43,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:32:43,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:32:43,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:32:43,751 INFO L87 Difference]: Start difference. First operand 962 states and 1187 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:44,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:44,124 INFO L93 Difference]: Finished difference Result 1923 states and 2356 transitions. [2024-10-13 06:32:44,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:32:44,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2024-10-13 06:32:44,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:44,129 INFO L225 Difference]: With dead ends: 1923 [2024-10-13 06:32:44,129 INFO L226 Difference]: Without dead ends: 1012 [2024-10-13 06:32:44,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:32:44,131 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 57 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:44,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 480 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:44,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-10-13 06:32:44,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 912. [2024-10-13 06:32:44,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 788 states have (on average 1.1840101522842639) internal successors, (933), 796 states have internal predecessors, (933), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-10-13 06:32:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1121 transitions. [2024-10-13 06:32:44,227 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1121 transitions. Word has length 147 [2024-10-13 06:32:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:44,228 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1121 transitions. [2024-10-13 06:32:44,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-13 06:32:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1121 transitions. [2024-10-13 06:32:44,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:44,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:44,229 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:44,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-13 06:32:44,230 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:44,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:44,230 INFO L85 PathProgramCache]: Analyzing trace with hash -555463024, now seen corresponding path program 1 times [2024-10-13 06:32:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:44,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739543796] [2024-10-13 06:32:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:44,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,000 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:45,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:45,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739543796] [2024-10-13 06:32:45,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739543796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:45,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:45,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:32:45,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799918907] [2024-10-13 06:32:45,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:45,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:32:45,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:45,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:32:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:32:45,002 INFO L87 Difference]: Start difference. First operand 912 states and 1121 transitions. Second operand has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:45,387 INFO L93 Difference]: Finished difference Result 1873 states and 2289 transitions. [2024-10-13 06:32:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:32:45,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-10-13 06:32:45,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:45,391 INFO L225 Difference]: With dead ends: 1873 [2024-10-13 06:32:45,391 INFO L226 Difference]: Without dead ends: 1000 [2024-10-13 06:32:45,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:32:45,392 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 50 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:45,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 609 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:45,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-10-13 06:32:45,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 900. [2024-10-13 06:32:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 776 states have (on average 1.1765463917525774) internal successors, (913), 784 states have internal predecessors, (913), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-10-13 06:32:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1101 transitions. [2024-10-13 06:32:45,475 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1101 transitions. Word has length 147 [2024-10-13 06:32:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:45,475 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1101 transitions. [2024-10-13 06:32:45,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-13 06:32:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1101 transitions. [2024-10-13 06:32:45,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-13 06:32:45,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:45,477 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:45,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-13 06:32:45,477 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:45,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:45,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1140039120, now seen corresponding path program 1 times [2024-10-13 06:32:45,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:45,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641828414] [2024-10-13 06:32:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:45,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:45,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:45,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641828414] [2024-10-13 06:32:45,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641828414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:45,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:45,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:32:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216636597] [2024-10-13 06:32:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:45,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:32:45,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:32:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:32:45,753 INFO L87 Difference]: Start difference. First operand 900 states and 1101 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:32:46,175 INFO L93 Difference]: Finished difference Result 1906 states and 2327 transitions. [2024-10-13 06:32:46,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:32:46,175 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-13 06:32:46,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:32:46,179 INFO L225 Difference]: With dead ends: 1906 [2024-10-13 06:32:46,179 INFO L226 Difference]: Without dead ends: 1057 [2024-10-13 06:32:46,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:32:46,181 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 107 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:32:46,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1589 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:32:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-10-13 06:32:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 980. [2024-10-13 06:32:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 832 states have (on average 1.1610576923076923) internal successors, (966), 841 states have internal predecessors, (966), 113 states have call successors, (113), 34 states have call predecessors, (113), 34 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-10-13 06:32:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1192 transitions. [2024-10-13 06:32:46,282 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1192 transitions. Word has length 147 [2024-10-13 06:32:46,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:32:46,284 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1192 transitions. [2024-10-13 06:32:46,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-13 06:32:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1192 transitions. [2024-10-13 06:32:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-13 06:32:46,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:32:46,286 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:32:46,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-13 06:32:46,286 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:32:46,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:32:46,287 INFO L85 PathProgramCache]: Analyzing trace with hash -746583659, now seen corresponding path program 1 times [2024-10-13 06:32:46,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:32:46,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365316213] [2024-10-13 06:32:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:32:46,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:32:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:32:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:32:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:32:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:32:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:32:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:32:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:32:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:32:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:32:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:32:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:32:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:32:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:32:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:32:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:32:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:32:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:32:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:32:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:32:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:32:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-13 06:32:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:32:47,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365316213] [2024-10-13 06:32:47,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365316213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:32:47,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:32:47,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:32:47,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498465672] [2024-10-13 06:32:47,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:32:47,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:32:47,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:32:47,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:32:47,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:32:47,460 INFO L87 Difference]: Start difference. First operand 980 states and 1192 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19)