./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.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_fillercode_fillercodesize_ps-cn-500_file-25.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 ec10ea9e3b5ae44205b1577b4332bbdea7d48266e807778645f0ab1e80c264b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:50:35,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:50:35,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:50:35,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:50:35,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:50:35,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:50:35,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:50:35,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:50:35,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:50:35,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:50:35,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:50:35,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:50:35,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:50:35,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:50:35,939 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:50:35,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:50:35,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:50:35,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:50:35,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:50:35,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:50:35,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:50:35,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:50:35,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:50:35,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:50:35,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:50:35,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:50:35,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:50:35,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:50:35,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:50:35,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:50:35,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:50:35,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:50:35,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:35,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:50:35,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:50:35,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:50:35,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:50:35,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:50:35,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:50:35,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:50:35,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:50:35,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:50:35,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec10ea9e3b5ae44205b1577b4332bbdea7d48266e807778645f0ab1e80c264b0 [2024-11-18 19:50:36,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:50:36,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:50:36,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:50:36,199 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:50:36,200 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:50:36,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i [2024-11-18 19:50:37,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:50:37,742 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:50:37,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-25.i [2024-11-18 19:50:37,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eca37a09/39674ad659f147be9ef0e5633b44ea43/FLAG77f9132f6 [2024-11-18 19:50:38,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eca37a09/39674ad659f147be9ef0e5633b44ea43 [2024-11-18 19:50:38,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:50:38,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:50:38,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:38,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:50:38,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:50:38,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e27010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38, skipping insertion in model container [2024-11-18 19:50:38,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:50:38,286 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_fillercode_fillercodesize_ps-cn-500_file-25.i[916,929] [2024-11-18 19:50:38,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:38,457 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:50:38,467 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_fillercode_fillercodesize_ps-cn-500_file-25.i[916,929] [2024-11-18 19:50:38,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:38,550 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:50:38,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38 WrapperNode [2024-11-18 19:50:38,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:38,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:38,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:50:38,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:50:38,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,626 INFO L138 Inliner]: procedures = 26, calls = 120, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 921 [2024-11-18 19:50:38,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:38,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:50:38,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:50:38,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:50:38,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,687 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 19:50:38,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:50:38,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:50:38,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:50:38,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:50:38,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (1/1) ... [2024-11-18 19:50:38,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:38,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:50:38,778 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 19:50:38,781 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 19:50:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:50:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:50:38,840 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:50:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:50:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:50:38,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:50:38,974 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:50:38,976 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:50:39,999 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-18 19:50:39,999 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:50:40,019 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:50:40,019 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:50:40,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:40 BoogieIcfgContainer [2024-11-18 19:50:40,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:50:40,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:50:40,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:50:40,024 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:50:40,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:50:38" (1/3) ... [2024-11-18 19:50:40,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147687c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:40, skipping insertion in model container [2024-11-18 19:50:40,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:38" (2/3) ... [2024-11-18 19:50:40,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147687c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:40, skipping insertion in model container [2024-11-18 19:50:40,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:40" (3/3) ... [2024-11-18 19:50:40,026 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-25.i [2024-11-18 19:50:40,040 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:50:40,040 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:50:40,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:50:40,114 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;@5d636e07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:50:40,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:50:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 259 states have (on average 1.5984555984555984) internal successors, (414), 260 states have internal predecessors, (414), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-18 19:50:40,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-18 19:50:40,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:40,152 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:40,153 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:40,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:40,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1153730653, now seen corresponding path program 1 times [2024-11-18 19:50:40,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:40,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988115200] [2024-11-18 19:50:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:40,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2024-11-18 19:50:40,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:40,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988115200] [2024-11-18 19:50:40,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988115200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:50:40,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24256785] [2024-11-18 19:50:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:40,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:50:40,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:50:40,725 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 19:50:40,726 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 19:50:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:41,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:50:41,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:50:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2024-11-18 19:50:41,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:50:41,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24256785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:41,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:50:41,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:50:41,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833295818] [2024-11-18 19:50:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:41,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:50:41,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:50:41,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:50:41,247 INFO L87 Difference]: Start difference. First operand has 369 states, 259 states have (on average 1.5984555984555984) internal successors, (414), 260 states have internal predecessors, (414), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:50:41,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:41,326 INFO L93 Difference]: Finished difference Result 731 states and 1357 transitions. [2024-11-18 19:50:41,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:50:41,329 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) Word has length 696 [2024-11-18 19:50:41,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:41,339 INFO L225 Difference]: With dead ends: 731 [2024-11-18 19:50:41,340 INFO L226 Difference]: Without dead ends: 365 [2024-11-18 19:50:41,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 697 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 19:50:41,353 INFO L432 NwaCegarLoop]: 619 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, 619 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 19:50:41,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:41,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-18 19:50:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-18 19:50:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-18 19:50:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 619 transitions. [2024-11-18 19:50:41,429 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 619 transitions. Word has length 696 [2024-11-18 19:50:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:41,430 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 619 transitions. [2024-11-18 19:50:41,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:50:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 619 transitions. [2024-11-18 19:50:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-18 19:50:41,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:41,445 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:41,461 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 19:50:41,649 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 19:50:41,650 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:41,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash -857202969, now seen corresponding path program 1 times [2024-11-18 19:50:41,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:41,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707155067] [2024-11-18 19:50:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:41,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:42,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:42,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707155067] [2024-11-18 19:50:42,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707155067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:42,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:42,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:42,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526275970] [2024-11-18 19:50:42,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:42,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:42,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:42,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:42,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:42,050 INFO L87 Difference]: Start difference. First operand 365 states and 619 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:42,143 INFO L93 Difference]: Finished difference Result 941 states and 1606 transitions. [2024-11-18 19:50:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:42,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 698 [2024-11-18 19:50:42,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:42,154 INFO L225 Difference]: With dead ends: 941 [2024-11-18 19:50:42,155 INFO L226 Difference]: Without dead ends: 579 [2024-11-18 19:50:42,156 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 19:50:42,157 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 363 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:42,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1289 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:42,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-18 19:50:42,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 576. [2024-11-18 19:50:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 454 states have (on average 1.6365638766519823) internal successors, (743), 455 states have internal predecessors, (743), 119 states have call successors, (119), 2 states have call predecessors, (119), 2 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-18 19:50:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 981 transitions. [2024-11-18 19:50:42,215 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 981 transitions. Word has length 698 [2024-11-18 19:50:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:42,217 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 981 transitions. [2024-11-18 19:50:42,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:42,217 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 981 transitions. [2024-11-18 19:50:42,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-18 19:50:42,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:42,227 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:42,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:50:42,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:42,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:42,228 INFO L85 PathProgramCache]: Analyzing trace with hash 173837929, now seen corresponding path program 1 times [2024-11-18 19:50:42,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:42,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781989518] [2024-11-18 19:50:42,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:42,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:42,608 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:42,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:42,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781989518] [2024-11-18 19:50:42,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781989518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:42,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:42,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:42,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453954928] [2024-11-18 19:50:42,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:42,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:42,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:42,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:42,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:42,613 INFO L87 Difference]: Start difference. First operand 576 states and 981 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:42,677 INFO L93 Difference]: Finished difference Result 1722 states and 2937 transitions. [2024-11-18 19:50:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:42,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 698 [2024-11-18 19:50:42,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:42,687 INFO L225 Difference]: With dead ends: 1722 [2024-11-18 19:50:42,688 INFO L226 Difference]: Without dead ends: 1149 [2024-11-18 19:50:42,689 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 19:50:42,690 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 430 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:42,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1215 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2024-11-18 19:50:42,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1143. [2024-11-18 19:50:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 900 states have (on average 1.6355555555555557) internal successors, (1472), 902 states have internal predecessors, (1472), 238 states have call successors, (238), 4 states have call predecessors, (238), 4 states have return successors, (238), 236 states have call predecessors, (238), 238 states have call successors, (238) [2024-11-18 19:50:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1948 transitions. [2024-11-18 19:50:42,796 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1948 transitions. Word has length 698 [2024-11-18 19:50:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:42,800 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1948 transitions. [2024-11-18 19:50:42,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1948 transitions. [2024-11-18 19:50:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-18 19:50:42,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:42,806 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:42,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:50:42,807 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:42,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2050320747, now seen corresponding path program 1 times [2024-11-18 19:50:42,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:42,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983412517] [2024-11-18 19:50:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:42,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:43,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:43,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983412517] [2024-11-18 19:50:43,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983412517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:43,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:43,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:43,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968203289] [2024-11-18 19:50:43,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:43,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:43,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:43,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:43,038 INFO L87 Difference]: Start difference. First operand 1143 states and 1948 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:43,098 INFO L93 Difference]: Finished difference Result 2295 states and 3902 transitions. [2024-11-18 19:50:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:43,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 698 [2024-11-18 19:50:43,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:43,105 INFO L225 Difference]: With dead ends: 2295 [2024-11-18 19:50:43,106 INFO L226 Difference]: Without dead ends: 1155 [2024-11-18 19:50:43,108 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 19:50:43,109 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 334 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:43,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1306 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:43,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2024-11-18 19:50:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1053. [2024-11-18 19:50:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 834 states have (on average 1.6330935251798562) internal successors, (1362), 834 states have internal predecessors, (1362), 214 states have call successors, (214), 4 states have call predecessors, (214), 4 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-18 19:50:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1790 transitions. [2024-11-18 19:50:43,185 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1790 transitions. Word has length 698 [2024-11-18 19:50:43,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:43,187 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1790 transitions. [2024-11-18 19:50:43,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:43,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1790 transitions. [2024-11-18 19:50:43,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-18 19:50:43,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:43,193 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:43,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:50:43,194 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:43,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:43,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1042824193, now seen corresponding path program 1 times [2024-11-18 19:50:43,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:43,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50898136] [2024-11-18 19:50:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:43,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:43,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:43,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50898136] [2024-11-18 19:50:43,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50898136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:43,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:43,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:43,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542465064] [2024-11-18 19:50:43,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:43,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:43,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:43,573 INFO L87 Difference]: Start difference. First operand 1053 states and 1790 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:43,651 INFO L93 Difference]: Finished difference Result 2631 states and 4474 transitions. [2024-11-18 19:50:43,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:43,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 699 [2024-11-18 19:50:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:43,661 INFO L225 Difference]: With dead ends: 2631 [2024-11-18 19:50:43,661 INFO L226 Difference]: Without dead ends: 1581 [2024-11-18 19:50:43,666 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 19:50:43,666 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 398 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:43,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1373 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:43,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-11-18 19:50:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1575. [2024-11-18 19:50:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1247 states have (on average 1.6311146752205292) internal successors, (2034), 1247 states have internal predecessors, (2034), 321 states have call successors, (321), 6 states have call predecessors, (321), 6 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-18 19:50:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2676 transitions. [2024-11-18 19:50:43,764 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2676 transitions. Word has length 699 [2024-11-18 19:50:43,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:43,765 INFO L471 AbstractCegarLoop]: Abstraction has 1575 states and 2676 transitions. [2024-11-18 19:50:43,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2676 transitions. [2024-11-18 19:50:43,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:50:43,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:43,770 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:43,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:50:43,770 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:43,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:43,771 INFO L85 PathProgramCache]: Analyzing trace with hash 641716279, now seen corresponding path program 1 times [2024-11-18 19:50:43,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:43,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102767665] [2024-11-18 19:50:43,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:43,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:43,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102767665] [2024-11-18 19:50:43,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102767665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:43,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:43,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:43,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058116488] [2024-11-18 19:50:43,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:43,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:43,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:43,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:43,985 INFO L87 Difference]: Start difference. First operand 1575 states and 2676 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:44,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:44,057 INFO L93 Difference]: Finished difference Result 4428 states and 7510 transitions. [2024-11-18 19:50:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:44,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2024-11-18 19:50:44,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:44,071 INFO L225 Difference]: With dead ends: 4428 [2024-11-18 19:50:44,072 INFO L226 Difference]: Without dead ends: 2856 [2024-11-18 19:50:44,076 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 19:50:44,076 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 613 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:44,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1228 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:44,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2024-11-18 19:50:44,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2684. [2024-11-18 19:50:44,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 2029 states have (on average 1.598817151306062) internal successors, (3244), 2029 states have internal predecessors, (3244), 642 states have call successors, (642), 12 states have call predecessors, (642), 12 states have return successors, (642), 642 states have call predecessors, (642), 642 states have call successors, (642) [2024-11-18 19:50:44,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 4528 transitions. [2024-11-18 19:50:44,260 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 4528 transitions. Word has length 700 [2024-11-18 19:50:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:44,261 INFO L471 AbstractCegarLoop]: Abstraction has 2684 states and 4528 transitions. [2024-11-18 19:50:44,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 4528 transitions. [2024-11-18 19:50:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:50:44,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:44,266 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:44,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:50:44,266 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:44,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:44,266 INFO L85 PathProgramCache]: Analyzing trace with hash 501167669, now seen corresponding path program 1 times [2024-11-18 19:50:44,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:44,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119473839] [2024-11-18 19:50:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:44,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:44,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:44,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119473839] [2024-11-18 19:50:44,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119473839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:44,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:44,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953137187] [2024-11-18 19:50:44,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:44,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:44,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:44,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:44,875 INFO L87 Difference]: Start difference. First operand 2684 states and 4528 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:45,054 INFO L93 Difference]: Finished difference Result 8046 states and 13578 transitions. [2024-11-18 19:50:45,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:45,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2024-11-18 19:50:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:45,083 INFO L225 Difference]: With dead ends: 8046 [2024-11-18 19:50:45,083 INFO L226 Difference]: Without dead ends: 5365 [2024-11-18 19:50:45,093 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 19:50:45,094 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 362 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:45,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1231 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:45,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2024-11-18 19:50:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 5363. [2024-11-18 19:50:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 4054 states have (on average 1.597927972372965) internal successors, (6478), 4054 states have internal predecessors, (6478), 1284 states have call successors, (1284), 24 states have call predecessors, (1284), 24 states have return successors, (1284), 1284 states have call predecessors, (1284), 1284 states have call successors, (1284) [2024-11-18 19:50:45,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 9046 transitions. [2024-11-18 19:50:45,556 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 9046 transitions. Word has length 700 [2024-11-18 19:50:45,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:45,557 INFO L471 AbstractCegarLoop]: Abstraction has 5363 states and 9046 transitions. [2024-11-18 19:50:45,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:45,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 9046 transitions. [2024-11-18 19:50:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:50:45,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:45,563 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:45,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:50:45,564 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:45,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:45,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1087180233, now seen corresponding path program 1 times [2024-11-18 19:50:45,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:45,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894118] [2024-11-18 19:50:45,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:45,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:46,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:46,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894118] [2024-11-18 19:50:46,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:46,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:46,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:50:46,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384554436] [2024-11-18 19:50:46,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:46,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:50:46,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:46,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:50:46,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:50:46,377 INFO L87 Difference]: Start difference. First operand 5363 states and 9046 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:47,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:47,505 INFO L93 Difference]: Finished difference Result 11099 states and 18686 transitions. [2024-11-18 19:50:47,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:50:47,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2024-11-18 19:50:47,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:47,541 INFO L225 Difference]: With dead ends: 11099 [2024-11-18 19:50:47,542 INFO L226 Difference]: Without dead ends: 7521 [2024-11-18 19:50:47,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:50:47,554 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 1238 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:47,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 3154 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:50:47,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7521 states. [2024-11-18 19:50:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7521 to 6812. [2024-11-18 19:50:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6812 states, 5263 states have (on average 1.6064981949458483) internal successors, (8455), 5268 states have internal predecessors, (8455), 1514 states have call successors, (1514), 34 states have call predecessors, (1514), 34 states have return successors, (1514), 1509 states have call predecessors, (1514), 1514 states have call successors, (1514) [2024-11-18 19:50:48,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6812 states to 6812 states and 11483 transitions. [2024-11-18 19:50:48,097 INFO L78 Accepts]: Start accepts. Automaton has 6812 states and 11483 transitions. Word has length 700 [2024-11-18 19:50:48,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:48,098 INFO L471 AbstractCegarLoop]: Abstraction has 6812 states and 11483 transitions. [2024-11-18 19:50:48,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:48,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6812 states and 11483 transitions. [2024-11-18 19:50:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:50:48,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:48,107 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:48,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:50:48,107 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:48,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash 704308632, now seen corresponding path program 1 times [2024-11-18 19:50:48,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:48,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792681845] [2024-11-18 19:50:48,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:48,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:48,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:48,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792681845] [2024-11-18 19:50:48,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792681845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:48,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:48,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:50:48,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822652579] [2024-11-18 19:50:48,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:48,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:50:48,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:50:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:50:48,854 INFO L87 Difference]: Start difference. First operand 6812 states and 11483 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:49,702 INFO L93 Difference]: Finished difference Result 20234 states and 34001 transitions. [2024-11-18 19:50:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:50:49,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2024-11-18 19:50:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:49,778 INFO L225 Difference]: With dead ends: 20234 [2024-11-18 19:50:49,778 INFO L226 Difference]: Without dead ends: 13506 [2024-11-18 19:50:49,804 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 19:50:49,858 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 1238 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:49,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1907 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:50:49,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13506 states. [2024-11-18 19:50:50,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13506 to 6948. [2024-11-18 19:50:50,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6948 states, 5383 states have (on average 1.6030094742708527) internal successors, (8629), 5388 states have internal predecessors, (8629), 1514 states have call successors, (1514), 50 states have call predecessors, (1514), 50 states have return successors, (1514), 1509 states have call predecessors, (1514), 1514 states have call successors, (1514) [2024-11-18 19:50:50,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6948 states to 6948 states and 11657 transitions. [2024-11-18 19:50:50,506 INFO L78 Accepts]: Start accepts. Automaton has 6948 states and 11657 transitions. Word has length 700 [2024-11-18 19:50:50,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:50,507 INFO L471 AbstractCegarLoop]: Abstraction has 6948 states and 11657 transitions. [2024-11-18 19:50:50,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6948 states and 11657 transitions. [2024-11-18 19:50:50,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:50:50,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:50,513 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:50,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:50:50,514 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:50,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:50,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1475042198, now seen corresponding path program 1 times [2024-11-18 19:50:50,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:50,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088860627] [2024-11-18 19:50:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:50,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:51,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088860627] [2024-11-18 19:50:51,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088860627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:51,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:51,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:50:51,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782970101] [2024-11-18 19:50:51,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:51,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:50:51,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:51,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:50:51,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:50:51,115 INFO L87 Difference]: Start difference. First operand 6948 states and 11657 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:51,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:51,707 INFO L93 Difference]: Finished difference Result 9698 states and 16085 transitions. [2024-11-18 19:50:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:51,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2024-11-18 19:50:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:51,741 INFO L225 Difference]: With dead ends: 9698 [2024-11-18 19:50:51,741 INFO L226 Difference]: Without dead ends: 7862 [2024-11-18 19:50:51,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:50:51,750 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 364 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:51,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 2004 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:50:51,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7862 states. [2024-11-18 19:50:52,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7862 to 7844. [2024-11-18 19:50:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7844 states, 6023 states have (on average 1.5771210360285572) internal successors, (9499), 6044 states have internal predecessors, (9499), 1738 states have call successors, (1738), 82 states have call predecessors, (1738), 82 states have return successors, (1738), 1717 states have call predecessors, (1738), 1738 states have call successors, (1738) [2024-11-18 19:50:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7844 states to 7844 states and 12975 transitions. [2024-11-18 19:50:52,549 INFO L78 Accepts]: Start accepts. Automaton has 7844 states and 12975 transitions. Word has length 700 [2024-11-18 19:50:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:52,550 INFO L471 AbstractCegarLoop]: Abstraction has 7844 states and 12975 transitions. [2024-11-18 19:50:52,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 7844 states and 12975 transitions. [2024-11-18 19:50:52,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:50:52,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:52,560 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:52,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:50:52,560 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:52,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:52,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1864519222, now seen corresponding path program 1 times [2024-11-18 19:50:52,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:52,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446657398] [2024-11-18 19:50:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:52,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446657398] [2024-11-18 19:50:53,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446657398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:53,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:53,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:50:53,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234415382] [2024-11-18 19:50:53,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:53,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:50:53,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:53,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:50:53,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:50:53,842 INFO L87 Difference]: Start difference. First operand 7844 states and 12975 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:55,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:55,140 INFO L93 Difference]: Finished difference Result 20302 states and 33590 transitions. [2024-11-18 19:50:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:50:55,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2024-11-18 19:50:55,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:55,192 INFO L225 Difference]: With dead ends: 20302 [2024-11-18 19:50:55,192 INFO L226 Difference]: Without dead ends: 12542 [2024-11-18 19:50:55,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:50:55,226 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 988 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 3643 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:55,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 3643 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 19:50:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12542 states. [2024-11-18 19:50:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12542 to 12530. [2024-11-18 19:50:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12530 states, 9607 states have (on average 1.5754137607994172) internal successors, (15135), 9638 states have internal predecessors, (15135), 2792 states have call successors, (2792), 130 states have call predecessors, (2792), 130 states have return successors, (2792), 2761 states have call predecessors, (2792), 2792 states have call successors, (2792) [2024-11-18 19:50:56,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12530 states to 12530 states and 20719 transitions. [2024-11-18 19:50:56,069 INFO L78 Accepts]: Start accepts. Automaton has 12530 states and 20719 transitions. Word has length 700 [2024-11-18 19:50:56,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:56,070 INFO L471 AbstractCegarLoop]: Abstraction has 12530 states and 20719 transitions. [2024-11-18 19:50:56,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 12530 states and 20719 transitions. [2024-11-18 19:50:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:50:56,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:56,078 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:56,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:50:56,079 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:56,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:56,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1132551796, now seen corresponding path program 1 times [2024-11-18 19:50:56,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:56,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643509176] [2024-11-18 19:50:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:56,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:56,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:56,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643509176] [2024-11-18 19:50:56,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643509176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:56,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:56,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:50:56,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268131180] [2024-11-18 19:50:56,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:56,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:50:56,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:50:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:50:56,972 INFO L87 Difference]: Start difference. First operand 12530 states and 20719 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:50:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:59,276 INFO L93 Difference]: Finished difference Result 31570 states and 51813 transitions. [2024-11-18 19:50:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 19:50:59,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 700 [2024-11-18 19:50:59,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:59,356 INFO L225 Difference]: With dead ends: 31570 [2024-11-18 19:50:59,356 INFO L226 Difference]: Without dead ends: 19124 [2024-11-18 19:50:59,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 19:50:59,395 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 1728 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:59,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 3633 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:50:59,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19124 states. [2024-11-18 19:51:01,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19124 to 19100. [2024-11-18 19:51:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19100 states, 14365 states have (on average 1.5477201531500173) internal successors, (22233), 14444 states have internal predecessors, (22233), 4476 states have call successors, (4476), 258 states have call predecessors, (4476), 258 states have return successors, (4476), 4397 states have call predecessors, (4476), 4476 states have call successors, (4476) [2024-11-18 19:51:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19100 states to 19100 states and 31185 transitions. [2024-11-18 19:51:01,113 INFO L78 Accepts]: Start accepts. Automaton has 19100 states and 31185 transitions. Word has length 700 [2024-11-18 19:51:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:01,115 INFO L471 AbstractCegarLoop]: Abstraction has 19100 states and 31185 transitions. [2024-11-18 19:51:01,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:51:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 19100 states and 31185 transitions. [2024-11-18 19:51:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-18 19:51:01,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:01,124 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:01,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:51:01,125 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:01,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:01,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1111431502, now seen corresponding path program 1 times [2024-11-18 19:51:01,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:01,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964294016] [2024-11-18 19:51:01,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:01,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:01,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:01,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964294016] [2024-11-18 19:51:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964294016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:01,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:01,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:51:01,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725315846] [2024-11-18 19:51:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:01,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:51:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:01,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:51:01,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:01,754 INFO L87 Difference]: Start difference. First operand 19100 states and 31185 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:03,044 INFO L93 Difference]: Finished difference Result 38020 states and 62050 transitions. [2024-11-18 19:51:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:03,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 700 [2024-11-18 19:51:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:03,137 INFO L225 Difference]: With dead ends: 38020 [2024-11-18 19:51:03,137 INFO L226 Difference]: Without dead ends: 19004 [2024-11-18 19:51:03,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:51:03,185 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 648 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:03,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1205 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:51:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19004 states. [2024-11-18 19:51:04,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19004 to 19004. [2024-11-18 19:51:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19004 states, 14269 states have (on average 1.524493657579368) internal successors, (21753), 14348 states have internal predecessors, (21753), 4476 states have call successors, (4476), 258 states have call predecessors, (4476), 258 states have return successors, (4476), 4397 states have call predecessors, (4476), 4476 states have call successors, (4476) [2024-11-18 19:51:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19004 states to 19004 states and 30705 transitions. [2024-11-18 19:51:04,517 INFO L78 Accepts]: Start accepts. Automaton has 19004 states and 30705 transitions. Word has length 700 [2024-11-18 19:51:04,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:04,518 INFO L471 AbstractCegarLoop]: Abstraction has 19004 states and 30705 transitions. [2024-11-18 19:51:04,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:04,519 INFO L276 IsEmpty]: Start isEmpty. Operand 19004 states and 30705 transitions. [2024-11-18 19:51:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-18 19:51:04,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:04,528 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:04,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:51:04,528 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:04,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:04,528 INFO L85 PathProgramCache]: Analyzing trace with hash -615124527, now seen corresponding path program 1 times [2024-11-18 19:51:04,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:04,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456162292] [2024-11-18 19:51:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:04,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:05,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:05,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456162292] [2024-11-18 19:51:05,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456162292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:05,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:05,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:51:05,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716525775] [2024-11-18 19:51:05,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:05,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:51:05,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:05,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:51:05,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:51:05,579 INFO L87 Difference]: Start difference. First operand 19004 states and 30705 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:51:08,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:08,375 INFO L93 Difference]: Finished difference Result 27359 states and 44232 transitions. [2024-11-18 19:51:08,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:51:08,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 701 [2024-11-18 19:51:08,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:08,483 INFO L225 Difference]: With dead ends: 27359 [2024-11-18 19:51:08,484 INFO L226 Difference]: Without dead ends: 22483 [2024-11-18 19:51:08,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:51:08,506 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 1855 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:08,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 2892 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 19:51:08,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22483 states. [2024-11-18 19:51:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22483 to 21312. [2024-11-18 19:51:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21312 states, 16209 states have (on average 1.5342710839656981) internal successors, (24869), 16296 states have internal predecessors, (24869), 4820 states have call successors, (4820), 282 states have call predecessors, (4820), 282 states have return successors, (4820), 4733 states have call predecessors, (4820), 4820 states have call successors, (4820) [2024-11-18 19:51:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21312 states to 21312 states and 34509 transitions. [2024-11-18 19:51:10,236 INFO L78 Accepts]: Start accepts. Automaton has 21312 states and 34509 transitions. Word has length 701 [2024-11-18 19:51:10,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:10,236 INFO L471 AbstractCegarLoop]: Abstraction has 21312 states and 34509 transitions. [2024-11-18 19:51:10,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:51:10,237 INFO L276 IsEmpty]: Start isEmpty. Operand 21312 states and 34509 transitions. [2024-11-18 19:51:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-18 19:51:10,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:10,247 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:10,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:51:10,248 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:10,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1201400749, now seen corresponding path program 1 times [2024-11-18 19:51:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:10,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949114075] [2024-11-18 19:51:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:10,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:10,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949114075] [2024-11-18 19:51:10,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949114075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:10,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:10,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:10,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191316959] [2024-11-18 19:51:10,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:10,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:10,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:10,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:10,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:10,488 INFO L87 Difference]: Start difference. First operand 21312 states and 34509 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:12,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:12,574 INFO L93 Difference]: Finished difference Result 41138 states and 66802 transitions. [2024-11-18 19:51:12,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:12,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 701 [2024-11-18 19:51:12,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:12,672 INFO L225 Difference]: With dead ends: 41138 [2024-11-18 19:51:12,672 INFO L226 Difference]: Without dead ends: 33954 [2024-11-18 19:51:12,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 19:51:12,695 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 955 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:12,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 2242 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:51:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33954 states. [2024-11-18 19:51:14,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33954 to 33934. [2024-11-18 19:51:14,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33934 states, 25927 states have (on average 1.538974813900567) internal successors, (39901), 26058 states have internal predecessors, (39901), 7568 states have call successors, (7568), 438 states have call predecessors, (7568), 438 states have return successors, (7568), 7437 states have call predecessors, (7568), 7568 states have call successors, (7568) [2024-11-18 19:51:15,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33934 states to 33934 states and 55037 transitions. [2024-11-18 19:51:15,095 INFO L78 Accepts]: Start accepts. Automaton has 33934 states and 55037 transitions. Word has length 701 [2024-11-18 19:51:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:15,096 INFO L471 AbstractCegarLoop]: Abstraction has 33934 states and 55037 transitions. [2024-11-18 19:51:15,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand 33934 states and 55037 transitions. [2024-11-18 19:51:15,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:51:15,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:15,115 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:15,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 19:51:15,116 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:15,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:15,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1427559120, now seen corresponding path program 1 times [2024-11-18 19:51:15,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:15,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375430315] [2024-11-18 19:51:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:15,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:15,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375430315] [2024-11-18 19:51:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375430315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:15,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:15,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326867490] [2024-11-18 19:51:15,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:15,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:15,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:15,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:15,921 INFO L87 Difference]: Start difference. First operand 33934 states and 55037 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:17,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:17,942 INFO L93 Difference]: Finished difference Result 53200 states and 86191 transitions. [2024-11-18 19:51:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:17,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 702 [2024-11-18 19:51:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:18,070 INFO L225 Difference]: With dead ends: 53200 [2024-11-18 19:51:18,070 INFO L226 Difference]: Without dead ends: 36632 [2024-11-18 19:51:18,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:18,121 INFO L432 NwaCegarLoop]: 1215 mSDtfsCounter, 1143 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:18,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2040 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:51:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36632 states. [2024-11-18 19:51:20,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36632 to 35944. [2024-11-18 19:51:20,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35944 states, 27624 states have (on average 1.5430784824790038) internal successors, (42626), 27755 states have internal predecessors, (42626), 7832 states have call successors, (7832), 487 states have call predecessors, (7832), 487 states have return successors, (7832), 7701 states have call predecessors, (7832), 7832 states have call successors, (7832) [2024-11-18 19:51:20,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35944 states to 35944 states and 58290 transitions. [2024-11-18 19:51:20,548 INFO L78 Accepts]: Start accepts. Automaton has 35944 states and 58290 transitions. Word has length 702 [2024-11-18 19:51:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:20,548 INFO L471 AbstractCegarLoop]: Abstraction has 35944 states and 58290 transitions. [2024-11-18 19:51:20,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:20,549 INFO L276 IsEmpty]: Start isEmpty. Operand 35944 states and 58290 transitions. [2024-11-18 19:51:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:51:20,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:20,564 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:20,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 19:51:20,564 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:20,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:20,564 INFO L85 PathProgramCache]: Analyzing trace with hash -934932946, now seen corresponding path program 1 times [2024-11-18 19:51:20,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:20,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964755557] [2024-11-18 19:51:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:20,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:21,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:21,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964755557] [2024-11-18 19:51:21,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964755557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:21,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:21,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 19:51:21,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568579337] [2024-11-18 19:51:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:21,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 19:51:21,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:21,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 19:51:21,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:51:21,560 INFO L87 Difference]: Start difference. First operand 35944 states and 58290 transitions. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:27,982 INFO L93 Difference]: Finished difference Result 90295 states and 146412 transitions. [2024-11-18 19:51:27,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 19:51:27,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 702 [2024-11-18 19:51:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:28,508 INFO L225 Difference]: With dead ends: 90295 [2024-11-18 19:51:28,509 INFO L226 Difference]: Without dead ends: 71721 [2024-11-18 19:51:28,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2024-11-18 19:51:28,568 INFO L432 NwaCegarLoop]: 769 mSDtfsCounter, 4145 mSDsluCounter, 4754 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4145 SdHoareTripleChecker+Valid, 5523 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:28,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4145 Valid, 5523 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 19:51:28,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71721 states. [2024-11-18 19:51:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71721 to 69448. [2024-11-18 19:51:34,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69448 states, 53894 states have (on average 1.552751697777118) internal successors, (83684), 54149 states have internal predecessors, (83684), 14583 states have call successors, (14583), 970 states have call predecessors, (14583), 970 states have return successors, (14583), 14328 states have call predecessors, (14583), 14583 states have call successors, (14583) [2024-11-18 19:51:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69448 states to 69448 states and 112850 transitions. [2024-11-18 19:51:34,433 INFO L78 Accepts]: Start accepts. Automaton has 69448 states and 112850 transitions. Word has length 702 [2024-11-18 19:51:34,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:34,434 INFO L471 AbstractCegarLoop]: Abstraction has 69448 states and 112850 transitions. [2024-11-18 19:51:34,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:34,435 INFO L276 IsEmpty]: Start isEmpty. Operand 69448 states and 112850 transitions. [2024-11-18 19:51:34,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:51:34,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:34,463 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:34,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 19:51:34,463 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:34,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:34,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1116051052, now seen corresponding path program 1 times [2024-11-18 19:51:34,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:34,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790835508] [2024-11-18 19:51:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:34,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:35,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790835508] [2024-11-18 19:51:35,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790835508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:35,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:35,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:51:35,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133788073] [2024-11-18 19:51:35,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:35,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:51:35,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:51:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:35,264 INFO L87 Difference]: Start difference. First operand 69448 states and 112850 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:45,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:45,538 INFO L93 Difference]: Finished difference Result 242668 states and 391164 transitions. [2024-11-18 19:51:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:51:45,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 702 [2024-11-18 19:51:45,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:46,190 INFO L225 Difference]: With dead ends: 242668 [2024-11-18 19:51:46,190 INFO L226 Difference]: Without dead ends: 173414 [2024-11-18 19:51:46,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:51:46,325 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 1108 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:46,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 2390 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:51:46,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173414 states.