./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.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 bfa28daccead4025689d4acb7ee77b26ba990cc9e83b74a1022dddbf4091a59b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:11:20,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:11:20,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 22:11:20,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:11:20,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:11:20,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:11:20,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:11:20,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:11:20,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:11:20,902 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:11:20,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:11:20,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:11:20,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:11:20,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:11:20,906 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:11:20,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:11:20,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:11:20,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:11:20,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 22:11:20,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:11:20,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:11:20,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:11:20,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:11:20,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:11:20,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:11:20,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:11:20,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:11:20,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:11:20,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:11:20,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:11:20,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:11:20,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:11:20,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:11:20,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:11:20,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:11:20,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:11:20,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 22:11:20,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 22:11:20,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:11:20,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:11:20,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:11:20,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:11:20,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfa28daccead4025689d4acb7ee77b26ba990cc9e83b74a1022dddbf4091a59b [2024-11-18 22:11:21,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:11:21,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:11:21,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:11:21,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:11:21,245 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:11:21,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i [2024-11-18 22:11:22,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:11:22,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:11:22,946 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i [2024-11-18 22:11:22,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e22f853/e33d66b2f9ba4e70bb69ef57c613e134/FLAG7cea80ad9 [2024-11-18 22:11:22,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e22f853/e33d66b2f9ba4e70bb69ef57c613e134 [2024-11-18 22:11:22,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:11:22,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:11:22,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:11:22,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:11:22,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:11:22,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:11:22" (1/1) ... [2024-11-18 22:11:22,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1556dd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:22, skipping insertion in model container [2024-11-18 22:11:22,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:11:22" (1/1) ... [2024-11-18 22:11:23,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:11:23,191 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i[916,929] [2024-11-18 22:11:23,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:11:23,261 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:11:23,275 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-33.i[916,929] [2024-11-18 22:11:23,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:11:23,319 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:11:23,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23 WrapperNode [2024-11-18 22:11:23,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:11:23,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:11:23,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:11:23,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:11:23,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,375 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 160 [2024-11-18 22:11:23,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:11:23,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:11:23,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:11:23,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:11:23,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,395 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,413 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 22:11:23,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:11:23,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:11:23,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:11:23,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:11:23,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (1/1) ... [2024-11-18 22:11:23,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:11:23,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:11:23,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 22:11:23,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 22:11:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:11:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:11:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:11:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 22:11:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:11:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:11:23,639 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:11:23,642 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:11:24,023 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-18 22:11:24,024 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:11:24,038 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:11:24,039 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:11:24,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:24 BoogieIcfgContainer [2024-11-18 22:11:24,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:11:24,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:11:24,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:11:24,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:11:24,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:11:22" (1/3) ... [2024-11-18 22:11:24,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ff301f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:11:24, skipping insertion in model container [2024-11-18 22:11:24,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:23" (2/3) ... [2024-11-18 22:11:24,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ff301f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:11:24, skipping insertion in model container [2024-11-18 22:11:24,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:24" (3/3) ... [2024-11-18 22:11:24,052 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-33.i [2024-11-18 22:11:24,071 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:11:24,071 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:11:24,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:11:24,139 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;@20259fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:11:24,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:11:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 22:11:24,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:24,154 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:24,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:24,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:24,161 INFO L85 PathProgramCache]: Analyzing trace with hash -403926304, now seen corresponding path program 1 times [2024-11-18 22:11:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:24,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605294282] [2024-11-18 22:11:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-18 22:11:24,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:24,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605294282] [2024-11-18 22:11:24,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605294282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:11:24,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178947460] [2024-11-18 22:11:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:24,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:11:24,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:11:24,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:11:24,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 22:11:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:24,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 22:11:24,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:11:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-18 22:11:24,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:11:24,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178947460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:24,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:11:24,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 22:11:24,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120517849] [2024-11-18 22:11:24,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:24,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 22:11:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:24,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 22:11:24,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:11:24,710 INFO L87 Difference]: Start difference. First operand has 69 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 22:11:24,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:24,738 INFO L93 Difference]: Finished difference Result 131 states and 212 transitions. [2024-11-18 22:11:24,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 22:11:24,743 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2024-11-18 22:11:24,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:24,752 INFO L225 Difference]: With dead ends: 131 [2024-11-18 22:11:24,752 INFO L226 Difference]: Without dead ends: 65 [2024-11-18 22:11:24,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:11:24,762 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:24,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:11:24,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-18 22:11:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-18 22:11:24,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.411764705882353) internal successors, (72), 51 states have internal predecessors, (72), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2024-11-18 22:11:24,805 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 89 [2024-11-18 22:11:24,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:24,806 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2024-11-18 22:11:24,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 22:11:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2024-11-18 22:11:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 22:11:24,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:24,810 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:24,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 22:11:25,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 22:11:25,011 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:25,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:25,012 INFO L85 PathProgramCache]: Analyzing trace with hash 54618848, now seen corresponding path program 1 times [2024-11-18 22:11:25,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:25,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279960600] [2024-11-18 22:11:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:25,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:25,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:25,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279960600] [2024-11-18 22:11:25,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279960600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:25,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:25,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:25,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168627639] [2024-11-18 22:11:25,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:25,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:25,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:25,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:25,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:25,333 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:25,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:25,363 INFO L93 Difference]: Finished difference Result 128 states and 191 transitions. [2024-11-18 22:11:25,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:25,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-18 22:11:25,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:25,366 INFO L225 Difference]: With dead ends: 128 [2024-11-18 22:11:25,367 INFO L226 Difference]: Without dead ends: 66 [2024-11-18 22:11:25,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:25,368 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:25,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:11:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-18 22:11:25,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-18 22:11:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2024-11-18 22:11:25,380 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 89 [2024-11-18 22:11:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:25,382 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2024-11-18 22:11:25,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2024-11-18 22:11:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 22:11:25,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:25,385 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:25,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 22:11:25,385 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:25,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:25,387 INFO L85 PathProgramCache]: Analyzing trace with hash 734677218, now seen corresponding path program 1 times [2024-11-18 22:11:25,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:25,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109599773] [2024-11-18 22:11:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:25,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:25,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:25,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109599773] [2024-11-18 22:11:25,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109599773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:25,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:25,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 22:11:25,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464985750] [2024-11-18 22:11:25,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:25,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 22:11:25,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:25,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 22:11:25,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:11:25,678 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:25,950 INFO L93 Difference]: Finished difference Result 157 states and 232 transitions. [2024-11-18 22:11:25,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:25,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-18 22:11:25,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:25,954 INFO L225 Difference]: With dead ends: 157 [2024-11-18 22:11:25,956 INFO L226 Difference]: Without dead ends: 94 [2024-11-18 22:11:25,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:25,959 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 91 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:25,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 311 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:11:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-18 22:11:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 68. [2024-11-18 22:11:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2024-11-18 22:11:25,979 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 89 [2024-11-18 22:11:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:25,979 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2024-11-18 22:11:25,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:25,980 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2024-11-18 22:11:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 22:11:25,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:25,983 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:25,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 22:11:25,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:25,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:25,985 INFO L85 PathProgramCache]: Analyzing trace with hash 992842656, now seen corresponding path program 1 times [2024-11-18 22:11:25,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:25,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202330451] [2024-11-18 22:11:25,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:25,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:28,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:28,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202330451] [2024-11-18 22:11:28,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202330451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:28,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:28,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:11:28,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520429697] [2024-11-18 22:11:28,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:28,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:11:28,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:28,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:11:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:28,166 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:28,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:28,973 INFO L93 Difference]: Finished difference Result 259 states and 376 transitions. [2024-11-18 22:11:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:11:28,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-18 22:11:28,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:28,976 INFO L225 Difference]: With dead ends: 259 [2024-11-18 22:11:28,976 INFO L226 Difference]: Without dead ends: 194 [2024-11-18 22:11:28,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:11:28,978 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 370 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:28,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 290 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 22:11:28,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-18 22:11:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 86. [2024-11-18 22:11:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 72 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 125 transitions. [2024-11-18 22:11:28,988 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 125 transitions. Word has length 89 [2024-11-18 22:11:28,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:28,989 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 125 transitions. [2024-11-18 22:11:28,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:28,989 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions. [2024-11-18 22:11:28,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 22:11:28,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:28,991 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:28,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 22:11:28,991 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:28,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:28,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1001302050, now seen corresponding path program 1 times [2024-11-18 22:11:28,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:28,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516196554] [2024-11-18 22:11:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:28,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:29,407 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:29,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:29,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516196554] [2024-11-18 22:11:29,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516196554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:29,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:29,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 22:11:29,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196185214] [2024-11-18 22:11:29,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:29,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 22:11:29,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:29,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 22:11:29,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:29,410 INFO L87 Difference]: Start difference. First operand 86 states and 125 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:29,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:29,802 INFO L93 Difference]: Finished difference Result 240 states and 350 transitions. [2024-11-18 22:11:29,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:11:29,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-18 22:11:29,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:29,805 INFO L225 Difference]: With dead ends: 240 [2024-11-18 22:11:29,805 INFO L226 Difference]: Without dead ends: 157 [2024-11-18 22:11:29,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:29,807 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 140 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:29,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 473 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:29,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-18 22:11:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 94. [2024-11-18 22:11:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 80 states have (on average 1.425) internal successors, (114), 80 states have internal predecessors, (114), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:29,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 138 transitions. [2024-11-18 22:11:29,820 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 138 transitions. Word has length 89 [2024-11-18 22:11:29,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:29,824 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 138 transitions. [2024-11-18 22:11:29,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:29,824 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 138 transitions. [2024-11-18 22:11:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 22:11:29,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:29,829 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:29,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 22:11:29,830 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:29,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:29,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1241881514, now seen corresponding path program 1 times [2024-11-18 22:11:29,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:29,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758918597] [2024-11-18 22:11:29,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:29,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:29,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:29,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758918597] [2024-11-18 22:11:29,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758918597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:29,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:29,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:29,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394309741] [2024-11-18 22:11:29,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:29,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:29,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:29,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:29,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:29,881 INFO L87 Difference]: Start difference. First operand 94 states and 138 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:29,936 INFO L93 Difference]: Finished difference Result 243 states and 359 transitions. [2024-11-18 22:11:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2024-11-18 22:11:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:29,940 INFO L225 Difference]: With dead ends: 243 [2024-11-18 22:11:29,940 INFO L226 Difference]: Without dead ends: 152 [2024-11-18 22:11:29,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:29,942 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 60 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:29,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 201 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:11:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-18 22:11:29,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 114. [2024-11-18 22:11:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 100 states have (on average 1.41) internal successors, (141), 100 states have internal predecessors, (141), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 165 transitions. [2024-11-18 22:11:29,956 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 165 transitions. Word has length 90 [2024-11-18 22:11:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:29,957 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 165 transitions. [2024-11-18 22:11:29,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 165 transitions. [2024-11-18 22:11:29,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 22:11:29,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:29,959 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:29,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 22:11:29,960 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:29,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash 824434819, now seen corresponding path program 1 times [2024-11-18 22:11:29,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:29,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811292055] [2024-11-18 22:11:29,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:29,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:30,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:30,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811292055] [2024-11-18 22:11:30,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811292055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:30,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:30,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:30,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167942081] [2024-11-18 22:11:30,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:30,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:30,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:30,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:30,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:30,018 INFO L87 Difference]: Start difference. First operand 114 states and 165 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:30,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:30,062 INFO L93 Difference]: Finished difference Result 263 states and 381 transitions. [2024-11-18 22:11:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2024-11-18 22:11:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:30,065 INFO L225 Difference]: With dead ends: 263 [2024-11-18 22:11:30,065 INFO L226 Difference]: Without dead ends: 152 [2024-11-18 22:11:30,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:30,066 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 81 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:30,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 163 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:11:30,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-18 22:11:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 97. [2024-11-18 22:11:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:30,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2024-11-18 22:11:30,075 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 90 [2024-11-18 22:11:30,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:30,076 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2024-11-18 22:11:30,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:30,076 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2024-11-18 22:11:30,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 22:11:30,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:30,077 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:30,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 22:11:30,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:30,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:30,078 INFO L85 PathProgramCache]: Analyzing trace with hash 821390439, now seen corresponding path program 1 times [2024-11-18 22:11:30,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:30,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452085530] [2024-11-18 22:11:30,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:30,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:30,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452085530] [2024-11-18 22:11:30,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452085530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:30,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:30,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929757959] [2024-11-18 22:11:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:30,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:30,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:30,195 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:30,259 INFO L93 Difference]: Finished difference Result 215 states and 306 transitions. [2024-11-18 22:11:30,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:30,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2024-11-18 22:11:30,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:30,261 INFO L225 Difference]: With dead ends: 215 [2024-11-18 22:11:30,261 INFO L226 Difference]: Without dead ends: 121 [2024-11-18 22:11:30,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:30,263 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 24 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:30,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 142 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:30,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-18 22:11:30,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 97. [2024-11-18 22:11:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.3373493975903614) internal successors, (111), 83 states have internal predecessors, (111), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 135 transitions. [2024-11-18 22:11:30,275 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 135 transitions. Word has length 90 [2024-11-18 22:11:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:30,276 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 135 transitions. [2024-11-18 22:11:30,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 135 transitions. [2024-11-18 22:11:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 22:11:30,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:30,277 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:30,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 22:11:30,277 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:30,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:30,278 INFO L85 PathProgramCache]: Analyzing trace with hash -199677915, now seen corresponding path program 1 times [2024-11-18 22:11:30,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:30,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705821929] [2024-11-18 22:11:30,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:30,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:30,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:30,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705821929] [2024-11-18 22:11:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705821929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:30,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:30,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:11:30,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158870768] [2024-11-18 22:11:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:30,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:11:30,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:11:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:30,996 INFO L87 Difference]: Start difference. First operand 97 states and 135 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:31,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:31,552 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2024-11-18 22:11:31,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:11:31,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2024-11-18 22:11:31,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:31,556 INFO L225 Difference]: With dead ends: 365 [2024-11-18 22:11:31,556 INFO L226 Difference]: Without dead ends: 271 [2024-11-18 22:11:31,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:11:31,558 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 300 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:31,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 327 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 22:11:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-18 22:11:31,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 132. [2024-11-18 22:11:31,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 118 states have (on average 1.3559322033898304) internal successors, (160), 118 states have internal predecessors, (160), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 22:11:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 184 transitions. [2024-11-18 22:11:31,565 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 184 transitions. Word has length 90 [2024-11-18 22:11:31,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:31,565 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 184 transitions. [2024-11-18 22:11:31,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 184 transitions. [2024-11-18 22:11:31,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 22:11:31,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:31,567 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:31,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 22:11:31,567 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:31,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:31,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2127410131, now seen corresponding path program 1 times [2024-11-18 22:11:31,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:31,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982860268] [2024-11-18 22:11:31,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:31,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:31,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982860268] [2024-11-18 22:11:31,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982860268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:31,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:31,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:31,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552307044] [2024-11-18 22:11:31,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:31,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:31,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:31,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:31,679 INFO L87 Difference]: Start difference. First operand 132 states and 184 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:31,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:31,948 INFO L93 Difference]: Finished difference Result 390 states and 541 transitions. [2024-11-18 22:11:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:11:31,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2024-11-18 22:11:31,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:31,950 INFO L225 Difference]: With dead ends: 390 [2024-11-18 22:11:31,950 INFO L226 Difference]: Without dead ends: 261 [2024-11-18 22:11:31,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:31,952 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 206 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:31,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 353 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:11:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-18 22:11:31,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 254. [2024-11-18 22:11:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 223 states have (on average 1.3408071748878925) internal successors, (299), 225 states have internal predecessors, (299), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-18 22:11:31,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 351 transitions. [2024-11-18 22:11:31,972 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 351 transitions. Word has length 91 [2024-11-18 22:11:31,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:31,972 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 351 transitions. [2024-11-18 22:11:31,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 351 transitions. [2024-11-18 22:11:31,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 22:11:31,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:31,976 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:31,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 22:11:31,977 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:31,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:31,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1540604117, now seen corresponding path program 1 times [2024-11-18 22:11:31,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:31,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346813630] [2024-11-18 22:11:31,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:31,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:32,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:32,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346813630] [2024-11-18 22:11:32,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346813630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:32,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:32,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:11:32,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963640754] [2024-11-18 22:11:32,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:32,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:11:32,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:32,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:11:32,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:32,669 INFO L87 Difference]: Start difference. First operand 254 states and 351 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:33,314 INFO L93 Difference]: Finished difference Result 582 states and 796 transitions. [2024-11-18 22:11:33,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:11:33,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2024-11-18 22:11:33,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:33,320 INFO L225 Difference]: With dead ends: 582 [2024-11-18 22:11:33,320 INFO L226 Difference]: Without dead ends: 335 [2024-11-18 22:11:33,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-18 22:11:33,322 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 269 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:33,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 321 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 22:11:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-18 22:11:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 264. [2024-11-18 22:11:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 233 states have (on average 1.3390557939914163) internal successors, (312), 235 states have internal predecessors, (312), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-18 22:11:33,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 364 transitions. [2024-11-18 22:11:33,337 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 364 transitions. Word has length 91 [2024-11-18 22:11:33,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:33,337 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 364 transitions. [2024-11-18 22:11:33,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:33,338 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 364 transitions. [2024-11-18 22:11:33,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 22:11:33,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:33,339 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:33,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 22:11:33,339 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:33,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:33,339 INFO L85 PathProgramCache]: Analyzing trace with hash 722955667, now seen corresponding path program 1 times [2024-11-18 22:11:33,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:33,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357238318] [2024-11-18 22:11:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:33,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:33,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:33,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357238318] [2024-11-18 22:11:33,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357238318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:33,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:33,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:33,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327101474] [2024-11-18 22:11:33,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:33,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:33,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:33,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:33,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:33,426 INFO L87 Difference]: Start difference. First operand 264 states and 364 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:33,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:33,502 INFO L93 Difference]: Finished difference Result 678 states and 939 transitions. [2024-11-18 22:11:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:33,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2024-11-18 22:11:33,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:33,505 INFO L225 Difference]: With dead ends: 678 [2024-11-18 22:11:33,506 INFO L226 Difference]: Without dead ends: 421 [2024-11-18 22:11:33,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:33,507 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 64 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:33,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 185 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:33,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-18 22:11:33,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 314. [2024-11-18 22:11:33,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 269 states have (on average 1.3271375464684014) internal successors, (357), 271 states have internal predecessors, (357), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:11:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 433 transitions. [2024-11-18 22:11:33,539 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 433 transitions. Word has length 91 [2024-11-18 22:11:33,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:33,540 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 433 transitions. [2024-11-18 22:11:33,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 433 transitions. [2024-11-18 22:11:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 22:11:33,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:33,541 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:33,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 22:11:33,542 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:33,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash 752838961, now seen corresponding path program 1 times [2024-11-18 22:11:33,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:33,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171979924] [2024-11-18 22:11:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:33,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:33,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:33,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171979924] [2024-11-18 22:11:33,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171979924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:33,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:33,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:11:33,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879353528] [2024-11-18 22:11:33,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:33,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:11:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:11:33,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:33,961 INFO L87 Difference]: Start difference. First operand 314 states and 433 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:34,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:34,377 INFO L93 Difference]: Finished difference Result 688 states and 945 transitions. [2024-11-18 22:11:34,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:11:34,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-11-18 22:11:34,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:34,381 INFO L225 Difference]: With dead ends: 688 [2024-11-18 22:11:34,382 INFO L226 Difference]: Without dead ends: 381 [2024-11-18 22:11:34,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:11:34,384 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 124 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:34,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 413 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:34,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-18 22:11:34,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 281. [2024-11-18 22:11:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 240 states have internal predecessors, (299), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-18 22:11:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 371 transitions. [2024-11-18 22:11:34,404 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 371 transitions. Word has length 92 [2024-11-18 22:11:34,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:34,404 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 371 transitions. [2024-11-18 22:11:34,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:34,404 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 371 transitions. [2024-11-18 22:11:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 22:11:34,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:34,406 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:34,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 22:11:34,406 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:34,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:34,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1432943225, now seen corresponding path program 1 times [2024-11-18 22:11:34,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:34,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487156438] [2024-11-18 22:11:34,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:34,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487156438] [2024-11-18 22:11:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487156438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:34,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:34,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:34,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535323794] [2024-11-18 22:11:34,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:34,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:34,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:34,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:34,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:34,444 INFO L87 Difference]: Start difference. First operand 281 states and 371 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:34,502 INFO L93 Difference]: Finished difference Result 528 states and 695 transitions. [2024-11-18 22:11:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:34,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-11-18 22:11:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:34,505 INFO L225 Difference]: With dead ends: 528 [2024-11-18 22:11:34,505 INFO L226 Difference]: Without dead ends: 382 [2024-11-18 22:11:34,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:34,506 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 74 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:34,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 165 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:11:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-18 22:11:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 271. [2024-11-18 22:11:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 229 states have (on average 1.240174672489083) internal successors, (284), 230 states have internal predecessors, (284), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-18 22:11:34,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 356 transitions. [2024-11-18 22:11:34,525 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 356 transitions. Word has length 92 [2024-11-18 22:11:34,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:34,525 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 356 transitions. [2024-11-18 22:11:34,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 356 transitions. [2024-11-18 22:11:34,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 22:11:34,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:34,526 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:34,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 22:11:34,527 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:34,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1423557864, now seen corresponding path program 1 times [2024-11-18 22:11:34,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:34,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236462770] [2024-11-18 22:11:34,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:34,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:34,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:34,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236462770] [2024-11-18 22:11:34,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236462770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:34,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:34,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:34,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324261500] [2024-11-18 22:11:34,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:34,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:34,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:34,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:34,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:34,598 INFO L87 Difference]: Start difference. First operand 271 states and 356 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:34,772 INFO L93 Difference]: Finished difference Result 524 states and 686 transitions. [2024-11-18 22:11:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 22:11:34,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-11-18 22:11:34,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:34,775 INFO L225 Difference]: With dead ends: 524 [2024-11-18 22:11:34,775 INFO L226 Difference]: Without dead ends: 279 [2024-11-18 22:11:34,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:34,776 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 116 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:34,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 329 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:34,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-18 22:11:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2024-11-18 22:11:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 233 states have (on average 1.2274678111587982) internal successors, (286), 234 states have internal predecessors, (286), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-18 22:11:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 358 transitions. [2024-11-18 22:11:34,800 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 358 transitions. Word has length 92 [2024-11-18 22:11:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:34,801 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 358 transitions. [2024-11-18 22:11:34,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 358 transitions. [2024-11-18 22:11:34,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 22:11:34,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:34,803 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:34,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 22:11:34,803 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:34,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2010363878, now seen corresponding path program 1 times [2024-11-18 22:11:34,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:34,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352979224] [2024-11-18 22:11:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:35,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:35,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352979224] [2024-11-18 22:11:35,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352979224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:35,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:35,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:11:35,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409372115] [2024-11-18 22:11:35,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:35,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:11:35,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:35,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:11:35,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:35,404 INFO L87 Difference]: Start difference. First operand 275 states and 358 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:35,874 INFO L93 Difference]: Finished difference Result 564 states and 729 transitions. [2024-11-18 22:11:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:11:35,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-11-18 22:11:35,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:35,885 INFO L225 Difference]: With dead ends: 564 [2024-11-18 22:11:35,885 INFO L226 Difference]: Without dead ends: 315 [2024-11-18 22:11:35,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-18 22:11:35,887 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 124 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:35,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 267 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-18 22:11:35,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 279. [2024-11-18 22:11:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 237 states have (on average 1.2236286919831223) internal successors, (290), 238 states have internal predecessors, (290), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-18 22:11:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 362 transitions. [2024-11-18 22:11:35,907 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 362 transitions. Word has length 92 [2024-11-18 22:11:35,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:35,908 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 362 transitions. [2024-11-18 22:11:35,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 362 transitions. [2024-11-18 22:11:35,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 22:11:35,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:35,909 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:35,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 22:11:35,910 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:35,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:35,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1352231904, now seen corresponding path program 1 times [2024-11-18 22:11:35,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:35,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679538234] [2024-11-18 22:11:35,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:35,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:36,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:36,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679538234] [2024-11-18 22:11:36,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679538234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:36,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:36,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:36,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727111537] [2024-11-18 22:11:36,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:36,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:36,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:36,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:36,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:36,036 INFO L87 Difference]: Start difference. First operand 279 states and 362 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:36,406 INFO L93 Difference]: Finished difference Result 622 states and 803 transitions. [2024-11-18 22:11:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 22:11:36,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 93 [2024-11-18 22:11:36,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:36,409 INFO L225 Difference]: With dead ends: 622 [2024-11-18 22:11:36,409 INFO L226 Difference]: Without dead ends: 369 [2024-11-18 22:11:36,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:36,411 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 208 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:36,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 385 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:36,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-18 22:11:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 320. [2024-11-18 22:11:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 264 states have (on average 1.2045454545454546) internal successors, (318), 265 states have internal predecessors, (318), 48 states have call successors, (48), 7 states have call predecessors, (48), 7 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-18 22:11:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 414 transitions. [2024-11-18 22:11:36,445 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 414 transitions. Word has length 93 [2024-11-18 22:11:36,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:36,446 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 414 transitions. [2024-11-18 22:11:36,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:36,446 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 414 transitions. [2024-11-18 22:11:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 22:11:36,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:36,448 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:36,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 22:11:36,448 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:36,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:36,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1952986484, now seen corresponding path program 1 times [2024-11-18 22:11:36,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:36,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268742525] [2024-11-18 22:11:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:36,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:36,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:36,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268742525] [2024-11-18 22:11:36,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268742525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:36,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:36,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 22:11:36,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704951074] [2024-11-18 22:11:36,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:36,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:11:36,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:36,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:11:36,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:11:36,925 INFO L87 Difference]: Start difference. First operand 320 states and 414 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:37,478 INFO L93 Difference]: Finished difference Result 723 states and 925 transitions. [2024-11-18 22:11:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 22:11:37,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 93 [2024-11-18 22:11:37,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:37,481 INFO L225 Difference]: With dead ends: 723 [2024-11-18 22:11:37,481 INFO L226 Difference]: Without dead ends: 429 [2024-11-18 22:11:37,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-18 22:11:37,483 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 205 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:37,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 560 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 22:11:37,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-18 22:11:37,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 418. [2024-11-18 22:11:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 323 states have (on average 1.1609907120743035) internal successors, (375), 327 states have internal predecessors, (375), 78 states have call successors, (78), 16 states have call predecessors, (78), 16 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 22:11:37,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 531 transitions. [2024-11-18 22:11:37,531 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 531 transitions. Word has length 93 [2024-11-18 22:11:37,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:37,531 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 531 transitions. [2024-11-18 22:11:37,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 531 transitions. [2024-11-18 22:11:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 22:11:37,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:37,532 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:37,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 22:11:37,533 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:37,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:37,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1667878087, now seen corresponding path program 1 times [2024-11-18 22:11:37,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:37,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438640140] [2024-11-18 22:11:37,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:37,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:37,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:37,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438640140] [2024-11-18 22:11:37,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438640140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:37,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:37,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 22:11:37,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710372038] [2024-11-18 22:11:37,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:37,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 22:11:37,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 22:11:37,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 22:11:37,610 INFO L87 Difference]: Start difference. First operand 418 states and 531 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:37,799 INFO L93 Difference]: Finished difference Result 941 states and 1195 transitions. [2024-11-18 22:11:37,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:37,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 94 [2024-11-18 22:11:37,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:37,803 INFO L225 Difference]: With dead ends: 941 [2024-11-18 22:11:37,803 INFO L226 Difference]: Without dead ends: 549 [2024-11-18 22:11:37,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:11:37,805 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 70 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:37,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 155 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:37,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-18 22:11:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 423. [2024-11-18 22:11:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 328 states have (on average 1.1615853658536586) internal successors, (381), 332 states have internal predecessors, (381), 78 states have call successors, (78), 16 states have call predecessors, (78), 16 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 22:11:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 537 transitions. [2024-11-18 22:11:37,849 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 537 transitions. Word has length 94 [2024-11-18 22:11:37,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:37,849 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 537 transitions. [2024-11-18 22:11:37,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:37,850 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 537 transitions. [2024-11-18 22:11:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 22:11:37,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:37,851 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:37,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 22:11:37,851 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:37,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:37,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1926024631, now seen corresponding path program 1 times [2024-11-18 22:11:37,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:37,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641595057] [2024-11-18 22:11:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:37,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:37,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641595057] [2024-11-18 22:11:37,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641595057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:37,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:37,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 22:11:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790781361] [2024-11-18 22:11:37,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:37,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 22:11:37,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 22:11:37,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 22:11:37,943 INFO L87 Difference]: Start difference. First operand 423 states and 537 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:38,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:38,216 INFO L93 Difference]: Finished difference Result 1019 states and 1281 transitions. [2024-11-18 22:11:38,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:38,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 94 [2024-11-18 22:11:38,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:38,220 INFO L225 Difference]: With dead ends: 1019 [2024-11-18 22:11:38,220 INFO L226 Difference]: Without dead ends: 622 [2024-11-18 22:11:38,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:11:38,223 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 174 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:38,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 163 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:11:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-18 22:11:38,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 413. [2024-11-18 22:11:38,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 334 states have internal predecessors, (387), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 519 transitions. [2024-11-18 22:11:38,312 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 519 transitions. Word has length 94 [2024-11-18 22:11:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:38,312 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 519 transitions. [2024-11-18 22:11:38,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 519 transitions. [2024-11-18 22:11:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 22:11:38,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:38,314 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:38,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 22:11:38,315 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:38,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:38,315 INFO L85 PathProgramCache]: Analyzing trace with hash 563504331, now seen corresponding path program 1 times [2024-11-18 22:11:38,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:38,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236359516] [2024-11-18 22:11:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:38,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:38,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236359516] [2024-11-18 22:11:38,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236359516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:38,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:38,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 22:11:38,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374933007] [2024-11-18 22:11:38,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:38,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 22:11:38,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 22:11:38,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:38,653 INFO L87 Difference]: Start difference. First operand 413 states and 519 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:38,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:38,907 INFO L93 Difference]: Finished difference Result 948 states and 1180 transitions. [2024-11-18 22:11:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:11:38,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 94 [2024-11-18 22:11:38,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:38,910 INFO L225 Difference]: With dead ends: 948 [2024-11-18 22:11:38,911 INFO L226 Difference]: Without dead ends: 538 [2024-11-18 22:11:38,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:38,912 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 154 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:38,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 341 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-18 22:11:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 433. [2024-11-18 22:11:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 351 states have (on average 1.170940170940171) internal successors, (411), 354 states have internal predecessors, (411), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 543 transitions. [2024-11-18 22:11:38,971 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 543 transitions. Word has length 94 [2024-11-18 22:11:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:38,972 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 543 transitions. [2024-11-18 22:11:38,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 543 transitions. [2024-11-18 22:11:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 22:11:38,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:38,973 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:38,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 22:11:38,973 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:38,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:38,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1429524115, now seen corresponding path program 1 times [2024-11-18 22:11:38,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:38,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678411548] [2024-11-18 22:11:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:38,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:39,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:39,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678411548] [2024-11-18 22:11:39,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678411548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:39,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:39,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 22:11:39,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802996210] [2024-11-18 22:11:39,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:39,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 22:11:39,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:39,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 22:11:39,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:39,126 INFO L87 Difference]: Start difference. First operand 433 states and 543 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:39,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:39,580 INFO L93 Difference]: Finished difference Result 1057 states and 1332 transitions. [2024-11-18 22:11:39,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:11:39,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2024-11-18 22:11:39,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:39,585 INFO L225 Difference]: With dead ends: 1057 [2024-11-18 22:11:39,585 INFO L226 Difference]: Without dead ends: 627 [2024-11-18 22:11:39,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:11:39,586 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 264 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:39,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 320 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-18 22:11:39,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 448. [2024-11-18 22:11:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 366 states have (on average 1.169398907103825) internal successors, (428), 369 states have internal predecessors, (428), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 560 transitions. [2024-11-18 22:11:39,639 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 560 transitions. Word has length 95 [2024-11-18 22:11:39,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:39,639 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 560 transitions. [2024-11-18 22:11:39,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 560 transitions. [2024-11-18 22:11:39,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 22:11:39,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:39,641 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:39,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 22:11:39,641 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:39,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:39,641 INFO L85 PathProgramCache]: Analyzing trace with hash 525904100, now seen corresponding path program 1 times [2024-11-18 22:11:39,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:39,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250817600] [2024-11-18 22:11:39,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:39,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:40,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:40,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250817600] [2024-11-18 22:11:40,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250817600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:40,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:40,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 22:11:40,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283067571] [2024-11-18 22:11:40,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:40,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 22:11:40,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:40,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 22:11:40,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:40,341 INFO L87 Difference]: Start difference. First operand 448 states and 560 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:40,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:40,723 INFO L93 Difference]: Finished difference Result 997 states and 1233 transitions. [2024-11-18 22:11:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:11:40,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2024-11-18 22:11:40,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:40,727 INFO L225 Difference]: With dead ends: 997 [2024-11-18 22:11:40,727 INFO L226 Difference]: Without dead ends: 552 [2024-11-18 22:11:40,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:40,729 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 85 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:40,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 317 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:11:40,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-18 22:11:40,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 430. [2024-11-18 22:11:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 348 states have (on average 1.1666666666666667) internal successors, (406), 351 states have internal predecessors, (406), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:40,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 538 transitions. [2024-11-18 22:11:40,778 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 538 transitions. Word has length 95 [2024-11-18 22:11:40,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:40,779 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 538 transitions. [2024-11-18 22:11:40,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:40,779 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 538 transitions. [2024-11-18 22:11:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 22:11:40,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:40,780 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:40,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 22:11:40,780 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:40,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:40,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1138594451, now seen corresponding path program 1 times [2024-11-18 22:11:40,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:40,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507061337] [2024-11-18 22:11:40,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:40,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:40,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:40,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507061337] [2024-11-18 22:11:40,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507061337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:40,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:40,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:40,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248146041] [2024-11-18 22:11:40,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:40,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:40,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:40,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:40,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:40,821 INFO L87 Difference]: Start difference. First operand 430 states and 538 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:40,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:40,953 INFO L93 Difference]: Finished difference Result 915 states and 1149 transitions. [2024-11-18 22:11:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:40,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2024-11-18 22:11:40,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:40,956 INFO L225 Difference]: With dead ends: 915 [2024-11-18 22:11:40,957 INFO L226 Difference]: Without dead ends: 488 [2024-11-18 22:11:40,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:40,958 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 58 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:40,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 177 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-18 22:11:41,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 436. [2024-11-18 22:11:41,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 354 states have (on average 1.1666666666666667) internal successors, (413), 357 states have internal predecessors, (413), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:41,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 545 transitions. [2024-11-18 22:11:41,054 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 545 transitions. Word has length 95 [2024-11-18 22:11:41,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:41,054 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 545 transitions. [2024-11-18 22:11:41,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 545 transitions. [2024-11-18 22:11:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 22:11:41,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:41,056 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:41,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 22:11:41,056 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:41,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1722409056, now seen corresponding path program 1 times [2024-11-18 22:11:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:41,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788436934] [2024-11-18 22:11:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:41,102 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:41,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:41,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788436934] [2024-11-18 22:11:41,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788436934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:41,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:41,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:11:41,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775148391] [2024-11-18 22:11:41,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:41,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:11:41,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:41,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:11:41,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:41,105 INFO L87 Difference]: Start difference. First operand 436 states and 545 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:41,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:41,256 INFO L93 Difference]: Finished difference Result 951 states and 1196 transitions. [2024-11-18 22:11:41,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:11:41,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2024-11-18 22:11:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:41,259 INFO L225 Difference]: With dead ends: 951 [2024-11-18 22:11:41,259 INFO L226 Difference]: Without dead ends: 518 [2024-11-18 22:11:41,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:11:41,262 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 62 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:41,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 138 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:41,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-18 22:11:41,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 415. [2024-11-18 22:11:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 333 states have (on average 1.1561561561561562) internal successors, (385), 336 states have internal predecessors, (385), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 517 transitions. [2024-11-18 22:11:41,320 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 517 transitions. Word has length 95 [2024-11-18 22:11:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:41,320 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 517 transitions. [2024-11-18 22:11:41,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 517 transitions. [2024-11-18 22:11:41,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 22:11:41,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:41,322 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:41,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 22:11:41,322 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:41,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:41,323 INFO L85 PathProgramCache]: Analyzing trace with hash 348418009, now seen corresponding path program 1 times [2024-11-18 22:11:41,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:41,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130429522] [2024-11-18 22:11:41,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:41,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:41,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:41,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130429522] [2024-11-18 22:11:41,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130429522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:41,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:41,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 22:11:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936787546] [2024-11-18 22:11:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:41,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 22:11:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:41,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 22:11:41,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:11:41,419 INFO L87 Difference]: Start difference. First operand 415 states and 517 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:41,618 INFO L93 Difference]: Finished difference Result 989 states and 1239 transitions. [2024-11-18 22:11:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:41,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 96 [2024-11-18 22:11:41,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:41,622 INFO L225 Difference]: With dead ends: 989 [2024-11-18 22:11:41,622 INFO L226 Difference]: Without dead ends: 577 [2024-11-18 22:11:41,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:41,624 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 133 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:41,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 421 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-18 22:11:41,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 397. [2024-11-18 22:11:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 315 states have (on average 1.1492063492063491) internal successors, (362), 318 states have internal predecessors, (362), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:41,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 494 transitions. [2024-11-18 22:11:41,694 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 494 transitions. Word has length 96 [2024-11-18 22:11:41,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:41,695 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 494 transitions. [2024-11-18 22:11:41,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 494 transitions. [2024-11-18 22:11:41,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 22:11:41,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:41,696 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:41,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 22:11:41,696 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:41,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1145792420, now seen corresponding path program 1 times [2024-11-18 22:11:41,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:41,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930554911] [2024-11-18 22:11:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:41,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:41,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:41,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930554911] [2024-11-18 22:11:41,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930554911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:41,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:41,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 22:11:41,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807817329] [2024-11-18 22:11:41,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:41,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 22:11:41,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:41,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 22:11:41,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:11:41,769 INFO L87 Difference]: Start difference. First operand 397 states and 494 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:41,946 INFO L93 Difference]: Finished difference Result 796 states and 995 transitions. [2024-11-18 22:11:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:41,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 96 [2024-11-18 22:11:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:41,950 INFO L225 Difference]: With dead ends: 796 [2024-11-18 22:11:41,950 INFO L226 Difference]: Without dead ends: 402 [2024-11-18 22:11:41,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:41,952 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 78 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:41,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 122 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-18 22:11:42,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 398. [2024-11-18 22:11:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 316 states have (on average 1.1487341772151898) internal successors, (363), 319 states have internal predecessors, (363), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 495 transitions. [2024-11-18 22:11:42,009 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 495 transitions. Word has length 96 [2024-11-18 22:11:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:42,010 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 495 transitions. [2024-11-18 22:11:42,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 495 transitions. [2024-11-18 22:11:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 22:11:42,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:42,012 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:42,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 22:11:42,012 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:42,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash -887626982, now seen corresponding path program 1 times [2024-11-18 22:11:42,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:42,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147339049] [2024-11-18 22:11:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:42,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:42,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:42,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147339049] [2024-11-18 22:11:42,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147339049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:42,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:42,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:42,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623049950] [2024-11-18 22:11:42,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:42,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:42,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:42,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:42,179 INFO L87 Difference]: Start difference. First operand 398 states and 495 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:42,776 INFO L93 Difference]: Finished difference Result 966 states and 1195 transitions. [2024-11-18 22:11:42,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:11:42,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 96 [2024-11-18 22:11:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:42,780 INFO L225 Difference]: With dead ends: 966 [2024-11-18 22:11:42,780 INFO L226 Difference]: Without dead ends: 571 [2024-11-18 22:11:42,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:42,781 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 237 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:42,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 345 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 22:11:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-18 22:11:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 404. [2024-11-18 22:11:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 322 states have (on average 1.1459627329192548) internal successors, (369), 325 states have internal predecessors, (369), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:42,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 501 transitions. [2024-11-18 22:11:42,845 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 501 transitions. Word has length 96 [2024-11-18 22:11:42,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:42,845 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 501 transitions. [2024-11-18 22:11:42,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:42,845 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 501 transitions. [2024-11-18 22:11:42,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 22:11:42,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:42,846 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:42,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 22:11:42,847 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:42,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:42,847 INFO L85 PathProgramCache]: Analyzing trace with hash -747078372, now seen corresponding path program 1 times [2024-11-18 22:11:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:42,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364485031] [2024-11-18 22:11:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:42,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:42,999 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:42,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:43,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364485031] [2024-11-18 22:11:43,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364485031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:43,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:43,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265778939] [2024-11-18 22:11:43,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:43,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:43,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:43,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:43,003 INFO L87 Difference]: Start difference. First operand 404 states and 501 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:43,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:43,400 INFO L93 Difference]: Finished difference Result 883 states and 1102 transitions. [2024-11-18 22:11:43,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:43,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 96 [2024-11-18 22:11:43,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:43,404 INFO L225 Difference]: With dead ends: 883 [2024-11-18 22:11:43,404 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 22:11:43,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-18 22:11:43,406 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 175 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:43,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 310 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 22:11:43,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 397. [2024-11-18 22:11:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 315 states have (on average 1.1428571428571428) internal successors, (360), 318 states have internal predecessors, (360), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 492 transitions. [2024-11-18 22:11:43,467 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 492 transitions. Word has length 96 [2024-11-18 22:11:43,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:43,468 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 492 transitions. [2024-11-18 22:11:43,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 492 transitions. [2024-11-18 22:11:43,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-18 22:11:43,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:43,469 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:43,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 22:11:43,470 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:43,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:43,470 INFO L85 PathProgramCache]: Analyzing trace with hash 227430366, now seen corresponding path program 1 times [2024-11-18 22:11:43,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:43,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721042158] [2024-11-18 22:11:43,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:43,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:43,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:43,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721042158] [2024-11-18 22:11:43,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721042158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:43,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:43,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:43,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850934227] [2024-11-18 22:11:43,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:43,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:43,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:43,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:43,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:43,576 INFO L87 Difference]: Start difference. First operand 397 states and 492 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:43,761 INFO L93 Difference]: Finished difference Result 826 states and 1029 transitions. [2024-11-18 22:11:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 22:11:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 97 [2024-11-18 22:11:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:43,765 INFO L225 Difference]: With dead ends: 826 [2024-11-18 22:11:43,765 INFO L226 Difference]: Without dead ends: 432 [2024-11-18 22:11:43,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-18 22:11:43,767 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 125 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:43,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 295 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-18 22:11:43,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 397. [2024-11-18 22:11:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 315 states have (on average 1.1396825396825396) internal successors, (359), 318 states have internal predecessors, (359), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 491 transitions. [2024-11-18 22:11:43,837 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 491 transitions. Word has length 97 [2024-11-18 22:11:43,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:43,841 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 491 transitions. [2024-11-18 22:11:43,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:43,841 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 491 transitions. [2024-11-18 22:11:43,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-18 22:11:43,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:43,842 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:43,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 22:11:43,843 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:43,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:43,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1360917536, now seen corresponding path program 1 times [2024-11-18 22:11:43,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:43,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352944513] [2024-11-18 22:11:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:43,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:43,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:43,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352944513] [2024-11-18 22:11:43,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352944513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:43,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:43,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 22:11:43,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112636892] [2024-11-18 22:11:43,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:43,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 22:11:43,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:43,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 22:11:43,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:11:43,937 INFO L87 Difference]: Start difference. First operand 397 states and 491 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:44,151 INFO L93 Difference]: Finished difference Result 821 states and 1020 transitions. [2024-11-18 22:11:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:44,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 97 [2024-11-18 22:11:44,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:44,156 INFO L225 Difference]: With dead ends: 821 [2024-11-18 22:11:44,157 INFO L226 Difference]: Without dead ends: 427 [2024-11-18 22:11:44,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:11:44,158 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 72 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:44,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 264 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-18 22:11:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 391. [2024-11-18 22:11:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 309 states have (on average 1.1197411003236246) internal successors, (346), 312 states have internal predecessors, (346), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 478 transitions. [2024-11-18 22:11:44,240 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 478 transitions. Word has length 97 [2024-11-18 22:11:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:44,241 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 478 transitions. [2024-11-18 22:11:44,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 478 transitions. [2024-11-18 22:11:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-18 22:11:44,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:44,243 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:44,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 22:11:44,243 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:44,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:44,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1102752098, now seen corresponding path program 1 times [2024-11-18 22:11:44,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:44,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040153935] [2024-11-18 22:11:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:44,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:44,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040153935] [2024-11-18 22:11:44,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040153935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:44,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:44,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 22:11:44,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41253764] [2024-11-18 22:11:44,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:44,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 22:11:44,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:44,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 22:11:44,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-18 22:11:44,943 INFO L87 Difference]: Start difference. First operand 391 states and 478 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:45,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:45,196 INFO L93 Difference]: Finished difference Result 780 states and 954 transitions. [2024-11-18 22:11:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 22:11:45,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 97 [2024-11-18 22:11:45,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:45,201 INFO L225 Difference]: With dead ends: 780 [2024-11-18 22:11:45,201 INFO L226 Difference]: Without dead ends: 392 [2024-11-18 22:11:45,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:11:45,202 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:45,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 162 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:11:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-18 22:11:45,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 387. [2024-11-18 22:11:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 305 states have (on average 1.1147540983606556) internal successors, (340), 308 states have internal predecessors, (340), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:45,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 472 transitions. [2024-11-18 22:11:45,263 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 472 transitions. Word has length 97 [2024-11-18 22:11:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:45,263 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 472 transitions. [2024-11-18 22:11:45,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:45,263 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 472 transitions. [2024-11-18 22:11:45,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-18 22:11:45,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:45,264 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:45,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 22:11:45,265 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:45,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:45,265 INFO L85 PathProgramCache]: Analyzing trace with hash -972101021, now seen corresponding path program 1 times [2024-11-18 22:11:45,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:45,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523238166] [2024-11-18 22:11:45,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:45,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:45,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:45,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523238166] [2024-11-18 22:11:45,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523238166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:45,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:45,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 22:11:45,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62110588] [2024-11-18 22:11:45,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:45,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:11:45,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:45,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:11:45,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:11:45,703 INFO L87 Difference]: Start difference. First operand 387 states and 472 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:46,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:46,208 INFO L93 Difference]: Finished difference Result 465 states and 565 transitions. [2024-11-18 22:11:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 22:11:46,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 98 [2024-11-18 22:11:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:46,212 INFO L225 Difference]: With dead ends: 465 [2024-11-18 22:11:46,212 INFO L226 Difference]: Without dead ends: 463 [2024-11-18 22:11:46,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-18 22:11:46,213 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 156 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:46,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 408 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:46,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-18 22:11:46,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 393. [2024-11-18 22:11:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 311 states have (on average 1.1189710610932475) internal successors, (348), 314 states have internal predecessors, (348), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:46,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 480 transitions. [2024-11-18 22:11:46,275 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 480 transitions. Word has length 98 [2024-11-18 22:11:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:46,275 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 480 transitions. [2024-11-18 22:11:46,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 480 transitions. [2024-11-18 22:11:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 22:11:46,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:46,277 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:46,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 22:11:46,277 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:46,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:46,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1418020170, now seen corresponding path program 1 times [2024-11-18 22:11:46,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:46,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424559978] [2024-11-18 22:11:46,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:46,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:46,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:46,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424559978] [2024-11-18 22:11:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424559978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175868815] [2024-11-18 22:11:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:46,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:46,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:46,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:46,418 INFO L87 Difference]: Start difference. First operand 393 states and 480 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:46,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:46,901 INFO L93 Difference]: Finished difference Result 955 states and 1159 transitions. [2024-11-18 22:11:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:11:46,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2024-11-18 22:11:46,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:46,906 INFO L225 Difference]: With dead ends: 955 [2024-11-18 22:11:46,906 INFO L226 Difference]: Without dead ends: 565 [2024-11-18 22:11:46,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:11:46,908 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 213 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:46,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 332 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-18 22:11:46,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 411. [2024-11-18 22:11:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 329 states have (on average 1.115501519756839) internal successors, (367), 332 states have internal predecessors, (367), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 499 transitions. [2024-11-18 22:11:46,969 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 499 transitions. Word has length 101 [2024-11-18 22:11:46,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:46,969 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 499 transitions. [2024-11-18 22:11:46,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 499 transitions. [2024-11-18 22:11:46,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 22:11:46,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:46,971 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:46,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 22:11:46,971 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:46,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:46,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1395387916, now seen corresponding path program 1 times [2024-11-18 22:11:46,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:46,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012722197] [2024-11-18 22:11:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:46,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:47,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:47,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012722197] [2024-11-18 22:11:47,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012722197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:47,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:47,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:11:47,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137556357] [2024-11-18 22:11:47,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:47,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:11:47,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:47,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:11:47,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:11:47,130 INFO L87 Difference]: Start difference. First operand 411 states and 499 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:47,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:47,427 INFO L93 Difference]: Finished difference Result 890 states and 1089 transitions. [2024-11-18 22:11:47,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:11:47,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2024-11-18 22:11:47,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:47,431 INFO L225 Difference]: With dead ends: 890 [2024-11-18 22:11:47,432 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 22:11:47,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-18 22:11:47,433 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 154 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:47,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 268 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:11:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 22:11:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 393. [2024-11-18 22:11:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 311 states have (on average 1.1157556270096463) internal successors, (347), 314 states have internal predecessors, (347), 66 states have call successors, (66), 15 states have call predecessors, (66), 15 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-18 22:11:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 479 transitions. [2024-11-18 22:11:47,502 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 479 transitions. Word has length 101 [2024-11-18 22:11:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:47,502 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 479 transitions. [2024-11-18 22:11:47,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:47,503 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 479 transitions. [2024-11-18 22:11:47,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 22:11:47,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:11:47,504 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:47,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 22:11:47,505 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:11:47,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:11:47,507 INFO L85 PathProgramCache]: Analyzing trace with hash 705040304, now seen corresponding path program 1 times [2024-11-18 22:11:47,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:11:47,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921336364] [2024-11-18 22:11:47,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:11:47,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:11:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:11:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-18 22:11:48,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:11:48,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921336364] [2024-11-18 22:11:48,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921336364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:11:48,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:11:48,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 22:11:48,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190428293] [2024-11-18 22:11:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:11:48,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:11:48,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:11:48,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:11:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:11:48,048 INFO L87 Difference]: Start difference. First operand 393 states and 479 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:48,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:11:48,499 INFO L93 Difference]: Finished difference Result 423 states and 520 transitions. [2024-11-18 22:11:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 22:11:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 102 [2024-11-18 22:11:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:11:48,500 INFO L225 Difference]: With dead ends: 423 [2024-11-18 22:11:48,500 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 22:11:48,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:11:48,501 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 133 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:11:48,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 388 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:11:48,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 22:11:48,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 22:11:48,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 22:11:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 22:11:48,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-11-18 22:11:48,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:11:48,504 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 22:11:48,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 22:11:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 22:11:48,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 22:11:48,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 22:11:48,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 22:11:48,510 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:11:48,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 22:12:09,920 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 88 DAG size of output: 167 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-18 22:12:16,797 WARN L286 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 88 DAG size of output: 167 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)