./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-93.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-93.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 952bd8e7fdb91678f0485f7e19f5c4233805bb57dd1b61f91c5f3403280ef405 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:48:33,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:48:33,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:48:33,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:48:33,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:48:33,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:48:33,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:48:33,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:48:33,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:48:33,983 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:48:33,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:48:33,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:48:33,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:48:33,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:48:33,985 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:48:33,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:48:33,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:48:33,986 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:48:33,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:48:33,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:48:33,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:48:33,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:48:33,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:48:33,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:48:33,988 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:48:33,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:48:33,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:48:33,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:48:33,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:48:33,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:48:33,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:48:33,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:48:33,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:48:33,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:48:33,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:48:33,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:48:33,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:48:33,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:48:33,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:48:33,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:48:33,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:48:33,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:48:33,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 952bd8e7fdb91678f0485f7e19f5c4233805bb57dd1b61f91c5f3403280ef405 [2024-11-22 07:48:34,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:48:34,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:48:34,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:48:34,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:48:34,255 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:48:34,256 INFO L431 ainManager$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-93.i [2024-11-22 07:48:35,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:48:36,328 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:48:36,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-93.i [2024-11-22 07:48:36,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb814ecee/61555ecad6da48489bf7aa40094b5aca/FLAGe1bee3168 [2024-11-22 07:48:36,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb814ecee/61555ecad6da48489bf7aa40094b5aca [2024-11-22 07:48:36,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:48:36,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:48:36,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:48:36,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:48:36,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:48:36,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:48:36" (1/1) ... [2024-11-22 07:48:36,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbd1bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:36, skipping insertion in model container [2024-11-22 07:48:36,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:48:36" (1/1) ... [2024-11-22 07:48:36,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:48:36,923 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-93.i[916,929] [2024-11-22 07:48:37,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:48:37,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:48:37,542 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-93.i[916,929] [2024-11-22 07:48:37,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:48:37,617 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:48:37,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37 WrapperNode [2024-11-22 07:48:37,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:48:37,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:48:37,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:48:37,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:48:37,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,739 INFO L138 Inliner]: procedures = 26, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 905 [2024-11-22 07:48:37,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:48:37,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:48:37,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:48:37,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:48:37,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,769 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,821 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]. [2024-11-22 07:48:37,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:48:37,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:48:37,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:48:37,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:48:37,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (1/1) ... [2024-11-22 07:48:37,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:48:37,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:48:37,925 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) [2024-11-22 07:48:37,928 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 [2024-11-22 07:48:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:48:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:48:37,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:48:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:48:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:48:37,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:48:38,202 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:48:38,206 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:48:39,656 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-22 07:48:39,657 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:48:39,697 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:48:39,700 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:48:39,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:48:39 BoogieIcfgContainer [2024-11-22 07:48:39,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:48:39,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:48:39,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:48:39,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:48:39,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:48:36" (1/3) ... [2024-11-22 07:48:39,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eef3d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:48:39, skipping insertion in model container [2024-11-22 07:48:39,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:48:37" (2/3) ... [2024-11-22 07:48:39,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eef3d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:48:39, skipping insertion in model container [2024-11-22 07:48:39,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:48:39" (3/3) ... [2024-11-22 07:48:39,712 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-93.i [2024-11-22 07:48:39,728 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:48:39,729 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:48:39,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:48:39,896 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;@f578fd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:48:39,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:48:39,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 239 states have (on average 1.5397489539748954) internal successors, (368), 240 states have internal predecessors, (368), 135 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-22 07:48:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2024-11-22 07:48:40,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:40,041 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:40,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:40,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 190151571, now seen corresponding path program 1 times [2024-11-22 07:48:40,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:40,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838212099] [2024-11-22 07:48:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:40,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:40,938 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:40,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:40,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838212099] [2024-11-22 07:48:40,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838212099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:40,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:40,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 07:48:40,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177709925] [2024-11-22 07:48:40,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:40,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:48:40,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:40,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:48:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:48:40,971 INFO L87 Difference]: Start difference. First operand has 377 states, 239 states have (on average 1.5397489539748954) internal successors, (368), 240 states have internal predecessors, (368), 135 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) Second operand has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:41,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:41,060 INFO L93 Difference]: Finished difference Result 745 states and 1401 transitions. [2024-11-22 07:48:41,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:48:41,063 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 834 [2024-11-22 07:48:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:41,084 INFO L225 Difference]: With dead ends: 745 [2024-11-22 07:48:41,085 INFO L226 Difference]: Without dead ends: 371 [2024-11-22 07:48:41,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:48:41,100 INFO L432 NwaCegarLoop]: 624 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, 624 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 [2024-11-22 07:48:41,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:48:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-22 07:48:41,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-11-22 07:48:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 234 states have (on average 1.5128205128205128) internal successors, (354), 234 states have internal predecessors, (354), 135 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-22 07:48:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 624 transitions. [2024-11-22 07:48:41,210 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 624 transitions. Word has length 834 [2024-11-22 07:48:41,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:41,213 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 624 transitions. [2024-11-22 07:48:41,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:41,214 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 624 transitions. [2024-11-22 07:48:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-22 07:48:41,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:41,232 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:41,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 07:48:41,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:41,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:41,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1808348497, now seen corresponding path program 1 times [2024-11-22 07:48:41,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:41,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071561041] [2024-11-22 07:48:41,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:41,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:41,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:41,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071561041] [2024-11-22 07:48:41,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071561041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:41,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:41,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:48:41,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100987074] [2024-11-22 07:48:41,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:41,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:48:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:41,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:48:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:41,979 INFO L87 Difference]: Start difference. First operand 371 states and 624 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:42,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:42,056 INFO L93 Difference]: Finished difference Result 942 states and 1592 transitions. [2024-11-22 07:48:42,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:42,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 835 [2024-11-22 07:48:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:42,061 INFO L225 Difference]: With dead ends: 942 [2024-11-22 07:48:42,062 INFO L226 Difference]: Without dead ends: 574 [2024-11-22 07:48:42,063 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 [2024-11-22 07:48:42,064 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 345 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:42,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1326 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:48:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-22 07:48:42,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 571. [2024-11-22 07:48:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 401 states have (on average 1.5810473815461346) internal successors, (634), 402 states have internal predecessors, (634), 167 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (167), 166 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-22 07:48:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 968 transitions. [2024-11-22 07:48:42,118 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 968 transitions. Word has length 835 [2024-11-22 07:48:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:42,121 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 968 transitions. [2024-11-22 07:48:42,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 968 transitions. [2024-11-22 07:48:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-22 07:48:42,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:42,155 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:42,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:48:42,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:42,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:42,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1075180625, now seen corresponding path program 1 times [2024-11-22 07:48:42,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:42,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155959090] [2024-11-22 07:48:42,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:42,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:42,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:42,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155959090] [2024-11-22 07:48:42,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155959090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:42,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:42,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:48:42,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614139087] [2024-11-22 07:48:42,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:42,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:48:42,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:42,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:48:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:42,856 INFO L87 Difference]: Start difference. First operand 571 states and 968 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:42,984 INFO L93 Difference]: Finished difference Result 1639 states and 2766 transitions. [2024-11-22 07:48:42,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:42,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 835 [2024-11-22 07:48:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:42,998 INFO L225 Difference]: With dead ends: 1639 [2024-11-22 07:48:42,998 INFO L226 Difference]: Without dead ends: 1071 [2024-11-22 07:48:43,002 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 [2024-11-22 07:48:43,004 INFO L432 NwaCegarLoop]: 1100 mSDtfsCounter, 546 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:43,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1714 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:48:43,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-22 07:48:43,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 587. [2024-11-22 07:48:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 417 states have (on average 1.5731414868105515) internal successors, (656), 418 states have internal predecessors, (656), 167 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (167), 166 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-22 07:48:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 990 transitions. [2024-11-22 07:48:43,096 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 990 transitions. Word has length 835 [2024-11-22 07:48:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:43,097 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 990 transitions. [2024-11-22 07:48:43,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:43,097 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 990 transitions. [2024-11-22 07:48:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-22 07:48:43,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:43,103 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:43,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:48:43,104 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:43,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:43,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1349940239, now seen corresponding path program 1 times [2024-11-22 07:48:43,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221311956] [2024-11-22 07:48:43,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:43,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:43,861 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:43,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:43,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221311956] [2024-11-22 07:48:43,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221311956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:43,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:43,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:48:43,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879723812] [2024-11-22 07:48:43,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:43,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:48:43,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:43,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:48:43,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:43,868 INFO L87 Difference]: Start difference. First operand 587 states and 990 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:43,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:43,981 INFO L93 Difference]: Finished difference Result 1746 states and 2948 transitions. [2024-11-22 07:48:43,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:43,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 835 [2024-11-22 07:48:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:43,988 INFO L225 Difference]: With dead ends: 1746 [2024-11-22 07:48:43,989 INFO L226 Difference]: Without dead ends: 1162 [2024-11-22 07:48:43,991 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 [2024-11-22 07:48:43,991 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 580 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:43,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1321 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:48:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-22 07:48:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1160. [2024-11-22 07:48:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 821 states have (on average 1.5712545676004872) internal successors, (1290), 823 states have internal predecessors, (1290), 334 states have call successors, (334), 4 states have call predecessors, (334), 4 states have return successors, (334), 332 states have call predecessors, (334), 334 states have call successors, (334) [2024-11-22 07:48:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1958 transitions. [2024-11-22 07:48:44,093 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1958 transitions. Word has length 835 [2024-11-22 07:48:44,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:44,095 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1958 transitions. [2024-11-22 07:48:44,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:44,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1958 transitions. [2024-11-22 07:48:44,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-22 07:48:44,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:44,101 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:44,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:48:44,102 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:44,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1256083315, now seen corresponding path program 1 times [2024-11-22 07:48:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:44,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965238350] [2024-11-22 07:48:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:44,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965238350] [2024-11-22 07:48:44,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965238350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:44,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:44,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:48:44,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878060858] [2024-11-22 07:48:44,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:44,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:48:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:44,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:48:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:44,567 INFO L87 Difference]: Start difference. First operand 1160 states and 1958 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:44,628 INFO L93 Difference]: Finished difference Result 2439 states and 4086 transitions. [2024-11-22 07:48:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 835 [2024-11-22 07:48:44,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:44,637 INFO L225 Difference]: With dead ends: 2439 [2024-11-22 07:48:44,637 INFO L226 Difference]: Without dead ends: 1282 [2024-11-22 07:48:44,640 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 [2024-11-22 07:48:44,641 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 37 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:44,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1228 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:48:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-22 07:48:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1276. [2024-11-22 07:48:44,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 917 states have (on average 1.5419847328244274) internal successors, (1414), 923 states have internal predecessors, (1414), 350 states have call successors, (350), 8 states have call predecessors, (350), 8 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2024-11-22 07:48:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 2114 transitions. [2024-11-22 07:48:44,745 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 2114 transitions. Word has length 835 [2024-11-22 07:48:44,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:44,746 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 2114 transitions. [2024-11-22 07:48:44,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:44,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 2114 transitions. [2024-11-22 07:48:44,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-11-22 07:48:44,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:44,752 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:44,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:48:44,753 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:44,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:44,753 INFO L85 PathProgramCache]: Analyzing trace with hash -685431800, now seen corresponding path program 1 times [2024-11-22 07:48:44,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:44,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881993337] [2024-11-22 07:48:44,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:44,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:45,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:45,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881993337] [2024-11-22 07:48:45,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881993337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:45,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:45,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:48:45,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649349199] [2024-11-22 07:48:45,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:45,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:48:45,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:45,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:48:45,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:45,680 INFO L87 Difference]: Start difference. First operand 1276 states and 2114 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:45,760 INFO L93 Difference]: Finished difference Result 2553 states and 4233 transitions. [2024-11-22 07:48:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:45,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 836 [2024-11-22 07:48:45,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:45,774 INFO L225 Difference]: With dead ends: 2553 [2024-11-22 07:48:45,775 INFO L226 Difference]: Without dead ends: 1280 [2024-11-22 07:48:45,780 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 [2024-11-22 07:48:45,781 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 0 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:45,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1240 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:48:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2024-11-22 07:48:45,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1280. [2024-11-22 07:48:45,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 921 states have (on average 1.5396308360477742) internal successors, (1418), 927 states have internal predecessors, (1418), 350 states have call successors, (350), 8 states have call predecessors, (350), 8 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2024-11-22 07:48:45,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 2118 transitions. [2024-11-22 07:48:45,910 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 2118 transitions. Word has length 836 [2024-11-22 07:48:45,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:45,912 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 2118 transitions. [2024-11-22 07:48:45,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:45,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 2118 transitions. [2024-11-22 07:48:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:48:45,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:45,921 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:45,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:48:45,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:45,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:45,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1897893235, now seen corresponding path program 1 times [2024-11-22 07:48:45,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:45,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080450510] [2024-11-22 07:48:45,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:45,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:46,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:46,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080450510] [2024-11-22 07:48:46,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080450510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:46,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:46,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:48:46,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078350901] [2024-11-22 07:48:46,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:46,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:48:46,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:48:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:46,684 INFO L87 Difference]: Start difference. First operand 1280 states and 2118 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:46,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:46,747 INFO L93 Difference]: Finished difference Result 2561 states and 4241 transitions. [2024-11-22 07:48:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:48:46,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:46,758 INFO L225 Difference]: With dead ends: 2561 [2024-11-22 07:48:46,758 INFO L226 Difference]: Without dead ends: 1284 [2024-11-22 07:48:46,763 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 [2024-11-22 07:48:46,763 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 0 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:46,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1241 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:48:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2024-11-22 07:48:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1280. [2024-11-22 07:48:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 921 states have (on average 1.5396308360477742) internal successors, (1418), 927 states have internal predecessors, (1418), 350 states have call successors, (350), 8 states have call predecessors, (350), 8 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2024-11-22 07:48:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 2118 transitions. [2024-11-22 07:48:46,910 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 2118 transitions. Word has length 837 [2024-11-22 07:48:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:46,911 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 2118 transitions. [2024-11-22 07:48:46,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:46,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 2118 transitions. [2024-11-22 07:48:46,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:48:46,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:46,919 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:46,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:48:46,919 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:46,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash -386815913, now seen corresponding path program 1 times [2024-11-22 07:48:46,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:46,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140601186] [2024-11-22 07:48:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:46,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:47,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:47,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140601186] [2024-11-22 07:48:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140601186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:47,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:47,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:48:47,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542417402] [2024-11-22 07:48:47,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:47,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:48:47,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:47,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:48:47,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:47,458 INFO L87 Difference]: Start difference. First operand 1280 states and 2118 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:47,614 INFO L93 Difference]: Finished difference Result 3834 states and 6348 transitions. [2024-11-22 07:48:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:48:47,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:48:47,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:47,626 INFO L225 Difference]: With dead ends: 3834 [2024-11-22 07:48:47,627 INFO L226 Difference]: Without dead ends: 2557 [2024-11-22 07:48:47,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:48:47,632 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 395 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:47,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1197 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:48:47,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2024-11-22 07:48:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2555. [2024-11-22 07:48:47,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 1838 states have (on average 1.5386289445048966) internal successors, (2828), 1850 states have internal predecessors, (2828), 700 states have call successors, (700), 16 states have call predecessors, (700), 16 states have return successors, (700), 688 states have call predecessors, (700), 700 states have call successors, (700) [2024-11-22 07:48:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 4228 transitions. [2024-11-22 07:48:47,867 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 4228 transitions. Word has length 837 [2024-11-22 07:48:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:47,868 INFO L471 AbstractCegarLoop]: Abstraction has 2555 states and 4228 transitions. [2024-11-22 07:48:47,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:47,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 4228 transitions. [2024-11-22 07:48:47,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:48:47,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:47,874 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:47,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:48:47,875 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:47,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:47,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1521641877, now seen corresponding path program 1 times [2024-11-22 07:48:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:47,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734867260] [2024-11-22 07:48:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:47,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 111 proven. 291 refuted. 0 times theorem prover too weak. 35778 trivial. 0 not checked. [2024-11-22 07:48:48,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734867260] [2024-11-22 07:48:48,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734867260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:48:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195278595] [2024-11-22 07:48:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:48,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:48:48,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:48:48,906 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) [2024-11-22 07:48:48,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 07:48:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:49,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 07:48:49,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:48:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 17984 proven. 177 refuted. 0 times theorem prover too weak. 18019 trivial. 0 not checked. [2024-11-22 07:48:50,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 07:48:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 225 proven. 177 refuted. 0 times theorem prover too weak. 35778 trivial. 0 not checked. [2024-11-22 07:48:50,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195278595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 07:48:50,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 07:48:50,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 12 [2024-11-22 07:48:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729454563] [2024-11-22 07:48:50,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 07:48:50,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 07:48:50,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:50,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 07:48:50,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-22 07:48:50,804 INFO L87 Difference]: Start difference. First operand 2555 states and 4228 transitions. Second operand has 12 states, 12 states have (on average 22.333333333333332) internal successors, (268), 12 states have internal predecessors, (268), 3 states have call successors, (291), 2 states have call predecessors, (291), 4 states have return successors, (293), 3 states have call predecessors, (293), 3 states have call successors, (293) [2024-11-22 07:48:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:53,934 INFO L93 Difference]: Finished difference Result 7211 states and 11817 transitions. [2024-11-22 07:48:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-22 07:48:53,944 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 22.333333333333332) internal successors, (268), 12 states have internal predecessors, (268), 3 states have call successors, (291), 2 states have call predecessors, (291), 4 states have return successors, (293), 3 states have call predecessors, (293), 3 states have call successors, (293) Word has length 837 [2024-11-22 07:48:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:54,017 INFO L225 Difference]: With dead ends: 7211 [2024-11-22 07:48:54,018 INFO L226 Difference]: Without dead ends: 4659 [2024-11-22 07:48:54,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1707 GetRequests, 1670 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=371, Invalid=1111, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 07:48:54,049 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1951 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:54,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 2661 Invalid, 3087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-22 07:48:54,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2024-11-22 07:48:54,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 3621. [2024-11-22 07:48:54,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 2658 states have (on average 1.5304740406320543) internal successors, (4068), 2678 states have internal predecessors, (4068), 926 states have call successors, (926), 36 states have call predecessors, (926), 36 states have return successors, (926), 906 states have call predecessors, (926), 926 states have call successors, (926) [2024-11-22 07:48:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 5920 transitions. [2024-11-22 07:48:54,521 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 5920 transitions. Word has length 837 [2024-11-22 07:48:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:54,522 INFO L471 AbstractCegarLoop]: Abstraction has 3621 states and 5920 transitions. [2024-11-22 07:48:54,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.333333333333332) internal successors, (268), 12 states have internal predecessors, (268), 3 states have call successors, (291), 2 states have call predecessors, (291), 4 states have return successors, (293), 3 states have call predecessors, (293), 3 states have call successors, (293) [2024-11-22 07:48:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 5920 transitions. [2024-11-22 07:48:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:48:54,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:54,529 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:54,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 07:48:54,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:48:54,738 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:54,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:54,738 INFO L85 PathProgramCache]: Analyzing trace with hash 186579603, now seen corresponding path program 1 times [2024-11-22 07:48:54,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:54,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783497952] [2024-11-22 07:48:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:54,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:55,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:55,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783497952] [2024-11-22 07:48:55,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783497952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:55,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:55,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 07:48:55,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224559558] [2024-11-22 07:48:55,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:55,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 07:48:55,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:55,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 07:48:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:48:55,979 INFO L87 Difference]: Start difference. First operand 3621 states and 5920 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:56,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:48:56,662 INFO L93 Difference]: Finished difference Result 10068 states and 16410 transitions. [2024-11-22 07:48:56,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:48:56,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:48:56,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:48:56,700 INFO L225 Difference]: With dead ends: 10068 [2024-11-22 07:48:56,700 INFO L226 Difference]: Without dead ends: 6450 [2024-11-22 07:48:56,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:48:56,712 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 1325 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:48:56,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 2895 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:48:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6450 states. [2024-11-22 07:48:57,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6450 to 5438. [2024-11-22 07:48:57,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 4155 states have (on average 1.5496991576413959) internal successors, (6439), 4190 states have internal predecessors, (6439), 1224 states have call successors, (1224), 58 states have call predecessors, (1224), 58 states have return successors, (1224), 1189 states have call predecessors, (1224), 1224 states have call successors, (1224) [2024-11-22 07:48:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 8887 transitions. [2024-11-22 07:48:57,173 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 8887 transitions. Word has length 837 [2024-11-22 07:48:57,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:48:57,177 INFO L471 AbstractCegarLoop]: Abstraction has 5438 states and 8887 transitions. [2024-11-22 07:48:57,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:48:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 8887 transitions. [2024-11-22 07:48:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:48:57,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:48:57,193 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:48:57,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:48:57,193 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:48:57,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:48:57,194 INFO L85 PathProgramCache]: Analyzing trace with hash -322893487, now seen corresponding path program 1 times [2024-11-22 07:48:57,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:48:57,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616254247] [2024-11-22 07:48:57,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:48:57,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:48:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:48:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:48:58,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:48:58,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616254247] [2024-11-22 07:48:58,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616254247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:48:58,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:48:58,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:48:58,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699516785] [2024-11-22 07:48:58,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:48:58,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:48:58,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:48:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:48:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:48:58,331 INFO L87 Difference]: Start difference. First operand 5438 states and 8887 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:49:00,927 INFO L93 Difference]: Finished difference Result 26280 states and 41875 transitions. [2024-11-22 07:49:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 07:49:00,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:49:00,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:49:01,015 INFO L225 Difference]: With dead ends: 26280 [2024-11-22 07:49:01,015 INFO L226 Difference]: Without dead ends: 20903 [2024-11-22 07:49:01,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-22 07:49:01,040 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 1345 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:49:01,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 2832 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 07:49:01,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20903 states. [2024-11-22 07:49:01,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20903 to 9954. [2024-11-22 07:49:01,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9954 states, 7903 states have (on average 1.5771226116664558) internal successors, (12464), 7974 states have internal predecessors, (12464), 1932 states have call successors, (1932), 118 states have call predecessors, (1932), 118 states have return successors, (1932), 1861 states have call predecessors, (1932), 1932 states have call successors, (1932) [2024-11-22 07:49:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9954 states to 9954 states and 16328 transitions. [2024-11-22 07:49:01,956 INFO L78 Accepts]: Start accepts. Automaton has 9954 states and 16328 transitions. Word has length 837 [2024-11-22 07:49:01,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:49:01,957 INFO L471 AbstractCegarLoop]: Abstraction has 9954 states and 16328 transitions. [2024-11-22 07:49:01,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:01,958 INFO L276 IsEmpty]: Start isEmpty. Operand 9954 states and 16328 transitions. [2024-11-22 07:49:01,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:49:01,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:49:01,969 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:49:01,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:49:01,969 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:49:01,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:49:01,970 INFO L85 PathProgramCache]: Analyzing trace with hash -117276655, now seen corresponding path program 1 times [2024-11-22 07:49:01,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:49:01,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320445770] [2024-11-22 07:49:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:01,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:49:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:49:02,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:49:02,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320445770] [2024-11-22 07:49:02,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320445770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:49:02,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:49:02,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:49:02,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778568905] [2024-11-22 07:49:02,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:49:02,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:49:02,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:49:02,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:49:02,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:49:02,201 INFO L87 Difference]: Start difference. First operand 9954 states and 16328 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:49:02,897 INFO L93 Difference]: Finished difference Result 24254 states and 39597 transitions. [2024-11-22 07:49:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:49:02,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:49:02,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:49:02,957 INFO L225 Difference]: With dead ends: 24254 [2024-11-22 07:49:02,957 INFO L226 Difference]: Without dead ends: 14361 [2024-11-22 07:49:02,989 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 [2024-11-22 07:49:02,989 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 545 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:49:02,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1233 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:49:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14361 states. [2024-11-22 07:49:04,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14361 to 12911. [2024-11-22 07:49:04,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12911 states, 9768 states have (on average 1.520884520884521) internal successors, (14856), 9875 states have internal predecessors, (14856), 2962 states have call successors, (2962), 180 states have call predecessors, (2962), 180 states have return successors, (2962), 2855 states have call predecessors, (2962), 2962 states have call successors, (2962) [2024-11-22 07:49:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12911 states to 12911 states and 20780 transitions. [2024-11-22 07:49:04,128 INFO L78 Accepts]: Start accepts. Automaton has 12911 states and 20780 transitions. Word has length 837 [2024-11-22 07:49:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:49:04,130 INFO L471 AbstractCegarLoop]: Abstraction has 12911 states and 20780 transitions. [2024-11-22 07:49:04,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:04,131 INFO L276 IsEmpty]: Start isEmpty. Operand 12911 states and 20780 transitions. [2024-11-22 07:49:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:49:04,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:49:04,154 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:49:04,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 07:49:04,158 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:49:04,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:49:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash -189663213, now seen corresponding path program 1 times [2024-11-22 07:49:04,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:49:04,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141074406] [2024-11-22 07:49:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:04,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:49:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:49:05,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:49:05,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141074406] [2024-11-22 07:49:05,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141074406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:49:05,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:49:05,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:49:05,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024172541] [2024-11-22 07:49:05,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:49:05,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:49:05,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:49:05,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:49:05,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:49:05,548 INFO L87 Difference]: Start difference. First operand 12911 states and 20780 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:49:08,682 INFO L93 Difference]: Finished difference Result 47274 states and 75618 transitions. [2024-11-22 07:49:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 07:49:08,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:49:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:49:08,918 INFO L225 Difference]: With dead ends: 47274 [2024-11-22 07:49:08,919 INFO L226 Difference]: Without dead ends: 34424 [2024-11-22 07:49:09,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 07:49:09,023 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 1636 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 07:49:09,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 1748 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 07:49:09,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34424 states. [2024-11-22 07:49:11,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34424 to 26055. [2024-11-22 07:49:11,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26055 states, 19844 states have (on average 1.527111469461802) internal successors, (30304), 20055 states have internal predecessors, (30304), 5854 states have call successors, (5854), 356 states have call predecessors, (5854), 356 states have return successors, (5854), 5643 states have call predecessors, (5854), 5854 states have call successors, (5854) [2024-11-22 07:49:12,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26055 states to 26055 states and 42012 transitions. [2024-11-22 07:49:12,085 INFO L78 Accepts]: Start accepts. Automaton has 26055 states and 42012 transitions. Word has length 837 [2024-11-22 07:49:12,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:49:12,087 INFO L471 AbstractCegarLoop]: Abstraction has 26055 states and 42012 transitions. [2024-11-22 07:49:12,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:12,087 INFO L276 IsEmpty]: Start isEmpty. Operand 26055 states and 42012 transitions. [2024-11-22 07:49:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:49:12,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:49:12,107 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:49:12,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 07:49:12,108 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:49:12,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:49:12,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1972469293, now seen corresponding path program 1 times [2024-11-22 07:49:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:49:12,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215190023] [2024-11-22 07:49:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:12,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:49:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 102 proven. 300 refuted. 0 times theorem prover too weak. 35778 trivial. 0 not checked. [2024-11-22 07:49:13,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:49:13,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215190023] [2024-11-22 07:49:13,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215190023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:49:13,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905567389] [2024-11-22 07:49:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:13,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:49:13,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:49:13,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 07:49:13,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 07:49:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:13,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 1844 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 07:49:13,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:49:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 13802 proven. 300 refuted. 0 times theorem prover too weak. 22078 trivial. 0 not checked. [2024-11-22 07:49:14,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 07:49:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 102 proven. 300 refuted. 0 times theorem prover too weak. 35778 trivial. 0 not checked. [2024-11-22 07:49:15,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905567389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 07:49:15,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 07:49:15,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-22 07:49:15,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201516348] [2024-11-22 07:49:15,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 07:49:15,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 07:49:15,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:49:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 07:49:15,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:49:15,679 INFO L87 Difference]: Start difference. First operand 26055 states and 42012 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (235), 2 states have call predecessors, (235), 4 states have return successors, (236), 2 states have call predecessors, (236), 2 states have call successors, (236) [2024-11-22 07:49:18,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:49:18,330 INFO L93 Difference]: Finished difference Result 51625 states and 82638 transitions. [2024-11-22 07:49:18,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 07:49:18,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (235), 2 states have call predecessors, (235), 4 states have return successors, (236), 2 states have call predecessors, (236), 2 states have call successors, (236) Word has length 837 [2024-11-22 07:49:18,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:49:18,461 INFO L225 Difference]: With dead ends: 51625 [2024-11-22 07:49:18,462 INFO L226 Difference]: Without dead ends: 25121 [2024-11-22 07:49:18,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1680 GetRequests, 1671 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-22 07:49:18,531 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 509 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:49:18,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1159 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:49:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25121 states. [2024-11-22 07:49:20,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25121 to 24701. [2024-11-22 07:49:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24701 states, 18454 states have (on average 1.4943643654492251) internal successors, (27577), 18665 states have internal predecessors, (27577), 5854 states have call successors, (5854), 392 states have call predecessors, (5854), 392 states have return successors, (5854), 5643 states have call predecessors, (5854), 5854 states have call successors, (5854) [2024-11-22 07:49:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24701 states to 24701 states and 39285 transitions. [2024-11-22 07:49:20,904 INFO L78 Accepts]: Start accepts. Automaton has 24701 states and 39285 transitions. Word has length 837 [2024-11-22 07:49:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:49:20,906 INFO L471 AbstractCegarLoop]: Abstraction has 24701 states and 39285 transitions. [2024-11-22 07:49:20,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (235), 2 states have call predecessors, (235), 4 states have return successors, (236), 2 states have call predecessors, (236), 2 states have call successors, (236) [2024-11-22 07:49:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 24701 states and 39285 transitions. [2024-11-22 07:49:20,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:49:20,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:49:20,920 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:49:20,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 07:49:21,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 07:49:21,128 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:49:21,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:49:21,132 INFO L85 PathProgramCache]: Analyzing trace with hash 465276499, now seen corresponding path program 1 times [2024-11-22 07:49:21,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:49:21,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682403738] [2024-11-22 07:49:21,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:21,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:49:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:49:21,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:49:21,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682403738] [2024-11-22 07:49:21,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682403738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:49:21,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:49:21,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:49:21,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052299178] [2024-11-22 07:49:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:49:21,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:49:21,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:49:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:49:21,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:49:21,332 INFO L87 Difference]: Start difference. First operand 24701 states and 39285 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:25,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:49:25,783 INFO L93 Difference]: Finished difference Result 65862 states and 103837 transitions. [2024-11-22 07:49:25,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:49:25,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:49:25,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:49:26,067 INFO L225 Difference]: With dead ends: 65862 [2024-11-22 07:49:26,067 INFO L226 Difference]: Without dead ends: 41222 [2024-11-22 07:49:26,311 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 [2024-11-22 07:49:26,312 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 199 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:49:26,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1224 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:49:26,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41222 states. [2024-11-22 07:49:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41222 to 28224. [2024-11-22 07:49:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28224 states, 21977 states have (on average 1.5207262137689403) internal successors, (33421), 22188 states have internal predecessors, (33421), 5854 states have call successors, (5854), 392 states have call predecessors, (5854), 392 states have return successors, (5854), 5643 states have call predecessors, (5854), 5854 states have call successors, (5854) [2024-11-22 07:49:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28224 states to 28224 states and 45129 transitions. [2024-11-22 07:49:29,622 INFO L78 Accepts]: Start accepts. Automaton has 28224 states and 45129 transitions. Word has length 837 [2024-11-22 07:49:29,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:49:29,627 INFO L471 AbstractCegarLoop]: Abstraction has 28224 states and 45129 transitions. [2024-11-22 07:49:29,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand 28224 states and 45129 transitions. [2024-11-22 07:49:29,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:49:29,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:49:29,663 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:49:29,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 07:49:29,663 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:49:29,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:49:29,664 INFO L85 PathProgramCache]: Analyzing trace with hash -290332337, now seen corresponding path program 1 times [2024-11-22 07:49:29,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:49:29,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420611432] [2024-11-22 07:49:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:49:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36180 trivial. 0 not checked. [2024-11-22 07:49:30,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:49:30,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420611432] [2024-11-22 07:49:30,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420611432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:49:30,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:49:30,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:49:30,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998182005] [2024-11-22 07:49:30,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:49:30,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:49:30,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:49:30,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:49:30,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:49:30,825 INFO L87 Difference]: Start difference. First operand 28224 states and 45129 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:34,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:49:34,877 INFO L93 Difference]: Finished difference Result 90226 states and 145907 transitions. [2024-11-22 07:49:34,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:49:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) Word has length 837 [2024-11-22 07:49:34,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:49:35,074 INFO L225 Difference]: With dead ends: 90226 [2024-11-22 07:49:35,075 INFO L226 Difference]: Without dead ends: 52217 [2024-11-22 07:49:35,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:49:35,133 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 980 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:49:35,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 1929 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:49:35,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52217 states. [2024-11-22 07:49:39,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52217 to 45736. [2024-11-22 07:49:39,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45736 states, 36681 states have (on average 1.5411520950901012) internal successors, (56531), 37036 states have internal predecessors, (56531), 8518 states have call successors, (8518), 536 states have call predecessors, (8518), 536 states have return successors, (8518), 8163 states have call predecessors, (8518), 8518 states have call successors, (8518) [2024-11-22 07:49:39,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45736 states to 45736 states and 73567 transitions. [2024-11-22 07:49:39,402 INFO L78 Accepts]: Start accepts. Automaton has 45736 states and 73567 transitions. Word has length 837 [2024-11-22 07:49:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:49:39,404 INFO L471 AbstractCegarLoop]: Abstraction has 45736 states and 73567 transitions. [2024-11-22 07:49:39,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 1 states have call predecessors, (135), 1 states have call successors, (135) [2024-11-22 07:49:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 45736 states and 73567 transitions. [2024-11-22 07:49:39,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-22 07:49:39,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:49:39,457 INFO L215 NwaCegarLoop]: trace histogram [135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:49:39,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 07:49:39,458 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:49:39,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:49:39,458 INFO L85 PathProgramCache]: Analyzing trace with hash -344725235, now seen corresponding path program 1 times [2024-11-22 07:49:39,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:49:39,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945450649] [2024-11-22 07:49:39,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:39,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:49:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 114 proven. 288 refuted. 0 times theorem prover too weak. 35778 trivial. 0 not checked. [2024-11-22 07:49:40,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:49:40,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945450649] [2024-11-22 07:49:40,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945450649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:49:40,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109014693] [2024-11-22 07:49:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:49:40,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:49:40,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:49:40,931 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 07:49:40,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 07:49:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:49:41,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 1841 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 07:49:41,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:49:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 22449 proven. 141 refuted. 0 times theorem prover too weak. 13590 trivial. 0 not checked. [2024-11-22 07:49:42,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 07:49:43,861 INFO L134 CoverageAnalysis]: Checked inductivity of 36180 backedges. 261 proven. 141 refuted. 0 times theorem prover too weak. 35778 trivial. 0 not checked. [2024-11-22 07:49:43,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109014693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 07:49:43,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 07:49:43,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2024-11-22 07:49:43,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043216254] [2024-11-22 07:49:43,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 07:49:43,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 07:49:43,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:49:43,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 07:49:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-22 07:49:43,871 INFO L87 Difference]: Start difference. First operand 45736 states and 73567 transitions. Second operand has 13 states, 13 states have (on average 25.23076923076923) internal successors, (328), 13 states have internal predecessors, (328), 6 states have call successors, (301), 3 states have call predecessors, (301), 6 states have return successors, (302), 6 states have call predecessors, (302), 6 states have call successors, (302)