./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.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-10.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 ead0eea170c5a9d81f9726cf37f718700e7559d903645dc78a3313310603417e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:40:53,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:40:53,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:40:53,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:40:53,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:40:53,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:40:53,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:40:53,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:40:53,608 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:40:53,612 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:40:53,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:40:53,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:40:53,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:40:53,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:40:53,613 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:40:53,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:40:53,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:40:53,614 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:40:53,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:40:53,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:40:53,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:40:53,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:40:53,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:40:53,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:40:53,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:40:53,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:40:53,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:40:53,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:40:53,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:40:53,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:40:53,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:40:53,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:40:53,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:40:53,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:40:53,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:40:53,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:40:53,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:40:53,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:40:53,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:40:53,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:40:53,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:40:53,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:40:53,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ead0eea170c5a9d81f9726cf37f718700e7559d903645dc78a3313310603417e [2024-11-22 07:40:53,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:40:53,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:40:53,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:40:53,921 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:40:53,921 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:40:53,922 INFO L431 ainManager$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-10.i [2024-11-22 07:40:55,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:40:55,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:40:55,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-10.i [2024-11-22 07:40:55,511 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efffebc6/bec70fd0d1de4a578c351215998edb3c/FLAGf4e0d7f3f [2024-11-22 07:40:55,845 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efffebc6/bec70fd0d1de4a578c351215998edb3c [2024-11-22 07:40:55,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:40:55,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:40:55,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:40:55,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:40:55,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:40:55,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:40:55" (1/1) ... [2024-11-22 07:40:55,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7e2143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:55, skipping insertion in model container [2024-11-22 07:40:55,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:40:55" (1/1) ... [2024-11-22 07:40:55,900 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:40:56,082 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-10.i[916,929] [2024-11-22 07:40:56,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:40:56,327 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:40:56,340 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-10.i[916,929] [2024-11-22 07:40:56,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:40:56,445 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:40:56,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56 WrapperNode [2024-11-22 07:40:56,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:40:56,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:40:56,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:40:56,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:40:56,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,565 INFO L138 Inliner]: procedures = 26, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 842 [2024-11-22 07:40:56,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:40:56,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:40:56,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:40:56,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:40:56,580 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,609 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,664 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 07:40:56,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:40:56,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:40:56,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:40:56,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:40:56,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (1/1) ... [2024-11-22 07:40:56,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:40:56,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:40:56,876 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 07:40:56,891 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 07:40:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:40:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:40:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:40:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:40:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:40:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:40:57,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:40:57,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:40:58,239 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-22 07:40:58,239 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:40:58,262 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:40:58,263 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:40:58,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:40:58 BoogieIcfgContainer [2024-11-22 07:40:58,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:40:58,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:40:58,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:40:58,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:40:58,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:40:55" (1/3) ... [2024-11-22 07:40:58,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713b0ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:40:58, skipping insertion in model container [2024-11-22 07:40:58,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:40:56" (2/3) ... [2024-11-22 07:40:58,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713b0ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:40:58, skipping insertion in model container [2024-11-22 07:40:58,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:40:58" (3/3) ... [2024-11-22 07:40:58,270 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-10.i [2024-11-22 07:40:58,282 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:40:58,282 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:40:58,359 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:40:58,365 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;@1ca6aab6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:40:58,365 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:40:58,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 255 states have (on average 1.5960784313725491) internal successors, (407), 256 states have internal predecessors, (407), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 07:40:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-22 07:40:58,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:40:58,409 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:58,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:40:58,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:40:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1254864149, now seen corresponding path program 1 times [2024-11-22 07:40:58,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:40:58,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671274503] [2024-11-22 07:40:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:40:58,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:40:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:40:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2024-11-22 07:40:58,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:40:58,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671274503] [2024-11-22 07:40:58,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671274503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:40:58,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656049458] [2024-11-22 07:40:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:40:58,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:40:58,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:40:58,963 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 07:40:58,964 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 07:40:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:40:59,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:40:59,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:40:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2024-11-22 07:40:59,423 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:40:59,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656049458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:40:59,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:40:59,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:40:59,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836156728] [2024-11-22 07:40:59,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:40:59,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:40:59,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:40:59,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:40:59,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:40:59,472 INFO L87 Difference]: Start difference. First operand has 356 states, 255 states have (on average 1.5960784313725491) internal successors, (407), 256 states have internal predecessors, (407), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-22 07:40:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:40:59,564 INFO L93 Difference]: Finished difference Result 704 states and 1296 transitions. [2024-11-22 07:40:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:40:59,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) Word has length 645 [2024-11-22 07:40:59,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:40:59,582 INFO L225 Difference]: With dead ends: 704 [2024-11-22 07:40:59,583 INFO L226 Difference]: Without dead ends: 351 [2024-11-22 07:40:59,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 646 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 07:40:59,597 INFO L432 NwaCegarLoop]: 591 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, 591 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 07:40:59,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:40:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-22 07:40:59,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-22 07:40:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 251 states have (on average 1.5737051792828685) internal successors, (395), 251 states have internal predecessors, (395), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 07:40:59,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 591 transitions. [2024-11-22 07:40:59,716 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 591 transitions. Word has length 645 [2024-11-22 07:40:59,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:40:59,717 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 591 transitions. [2024-11-22 07:40:59,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-22 07:40:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 591 transitions. [2024-11-22 07:40:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-22 07:40:59,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:40:59,737 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:59,751 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 07:40:59,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 07:40:59,942 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:40:59,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:40:59,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1368206069, now seen corresponding path program 1 times [2024-11-22 07:40:59,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:40:59,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457086892] [2024-11-22 07:40:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:40:59,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:00,604 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:00,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:00,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457086892] [2024-11-22 07:41:00,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457086892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:00,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:00,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:00,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177057288] [2024-11-22 07:41:00,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:00,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:00,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:00,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:00,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:00,610 INFO L87 Difference]: Start difference. First operand 351 states and 591 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:00,649 INFO L93 Difference]: Finished difference Result 700 states and 1181 transitions. [2024-11-22 07:41:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:00,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-22 07:41:00,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:00,656 INFO L225 Difference]: With dead ends: 700 [2024-11-22 07:41:00,658 INFO L226 Difference]: Without dead ends: 352 [2024-11-22 07:41:00,659 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 07:41:00,660 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 0 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:00,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1175 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-22 07:41:00,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2024-11-22 07:41:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 252 states have (on average 1.5714285714285714) internal successors, (396), 252 states have internal predecessors, (396), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 07:41:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 592 transitions. [2024-11-22 07:41:00,699 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 592 transitions. Word has length 645 [2024-11-22 07:41:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:00,703 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 592 transitions. [2024-11-22 07:41:00,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 592 transitions. [2024-11-22 07:41:00,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-22 07:41:00,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:00,715 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:00,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:41:00,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:00,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:00,716 INFO L85 PathProgramCache]: Analyzing trace with hash -709130829, now seen corresponding path program 1 times [2024-11-22 07:41:00,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:00,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424050337] [2024-11-22 07:41:00,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:00,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:01,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:01,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424050337] [2024-11-22 07:41:01,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424050337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:01,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:01,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:01,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657645025] [2024-11-22 07:41:01,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:01,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:01,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:01,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:01,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:01,047 INFO L87 Difference]: Start difference. First operand 352 states and 592 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:01,097 INFO L93 Difference]: Finished difference Result 917 states and 1550 transitions. [2024-11-22 07:41:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-22 07:41:01,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:01,106 INFO L225 Difference]: With dead ends: 917 [2024-11-22 07:41:01,107 INFO L226 Difference]: Without dead ends: 568 [2024-11-22 07:41:01,109 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 07:41:01,110 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 334 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:01,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1253 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:01,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-22 07:41:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 565. [2024-11-22 07:41:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 434 states have (on average 1.6152073732718895) internal successors, (701), 435 states have internal predecessors, (701), 128 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 07:41:01,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 957 transitions. [2024-11-22 07:41:01,157 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 957 transitions. Word has length 645 [2024-11-22 07:41:01,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:01,161 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 957 transitions. [2024-11-22 07:41:01,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 957 transitions. [2024-11-22 07:41:01,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-22 07:41:01,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:01,185 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:01,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:41:01,185 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:01,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1557250357, now seen corresponding path program 1 times [2024-11-22 07:41:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:01,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370475162] [2024-11-22 07:41:01,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:01,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:01,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370475162] [2024-11-22 07:41:01,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370475162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:01,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:01,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312474064] [2024-11-22 07:41:01,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:01,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:01,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:01,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:01,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:01,488 INFO L87 Difference]: Start difference. First operand 565 states and 957 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:01,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:01,551 INFO L93 Difference]: Finished difference Result 1559 states and 2644 transitions. [2024-11-22 07:41:01,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:01,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-22 07:41:01,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:01,561 INFO L225 Difference]: With dead ends: 1559 [2024-11-22 07:41:01,561 INFO L226 Difference]: Without dead ends: 997 [2024-11-22 07:41:01,563 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 07:41:01,565 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 368 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:01,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1170 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:01,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-22 07:41:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 994. [2024-11-22 07:41:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 773 states have (on average 1.6196636481241915) internal successors, (1252), 776 states have internal predecessors, (1252), 216 states have call successors, (216), 4 states have call predecessors, (216), 4 states have return successors, (216), 213 states have call predecessors, (216), 216 states have call successors, (216) [2024-11-22 07:41:01,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1684 transitions. [2024-11-22 07:41:01,661 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1684 transitions. Word has length 645 [2024-11-22 07:41:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:01,662 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1684 transitions. [2024-11-22 07:41:01,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:01,662 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1684 transitions. [2024-11-22 07:41:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-22 07:41:01,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:01,677 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:01,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:41:01,677 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:01,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash 713244855, now seen corresponding path program 1 times [2024-11-22 07:41:01,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:01,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777645336] [2024-11-22 07:41:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:01,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:01,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:01,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777645336] [2024-11-22 07:41:01,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777645336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:01,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:01,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:01,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928545418] [2024-11-22 07:41:01,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:01,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:01,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:01,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:01,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:01,989 INFO L87 Difference]: Start difference. First operand 994 states and 1684 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:02,108 INFO L93 Difference]: Finished difference Result 2909 states and 4927 transitions. [2024-11-22 07:41:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:02,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-22 07:41:02,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:02,121 INFO L225 Difference]: With dead ends: 2909 [2024-11-22 07:41:02,121 INFO L226 Difference]: Without dead ends: 1918 [2024-11-22 07:41:02,123 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 07:41:02,124 INFO L432 NwaCegarLoop]: 1003 mSDtfsCounter, 548 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:02,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1584 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2024-11-22 07:41:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1916. [2024-11-22 07:41:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1475 states have (on average 1.6033898305084746) internal successors, (2365), 1481 states have internal predecessors, (2365), 432 states have call successors, (432), 8 states have call predecessors, (432), 8 states have return successors, (432), 426 states have call predecessors, (432), 432 states have call successors, (432) [2024-11-22 07:41:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 3229 transitions. [2024-11-22 07:41:02,216 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 3229 transitions. Word has length 645 [2024-11-22 07:41:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:02,217 INFO L471 AbstractCegarLoop]: Abstraction has 1916 states and 3229 transitions. [2024-11-22 07:41:02,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 3229 transitions. [2024-11-22 07:41:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-22 07:41:02,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:02,221 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:02,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:41:02,222 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:02,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:02,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1517945797, now seen corresponding path program 1 times [2024-11-22 07:41:02,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:02,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98484091] [2024-11-22 07:41:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:02,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:02,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:02,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98484091] [2024-11-22 07:41:02,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98484091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:02,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:02,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:02,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645385320] [2024-11-22 07:41:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:02,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:02,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:02,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:02,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:02,781 INFO L87 Difference]: Start difference. First operand 1916 states and 3229 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:02,915 INFO L93 Difference]: Finished difference Result 4341 states and 7350 transitions. [2024-11-22 07:41:02,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:02,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 645 [2024-11-22 07:41:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:02,929 INFO L225 Difference]: With dead ends: 4341 [2024-11-22 07:41:02,929 INFO L226 Difference]: Without dead ends: 2428 [2024-11-22 07:41:02,936 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 07:41:02,937 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 573 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:02,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1476 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2024-11-22 07:41:03,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2082. [2024-11-22 07:41:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 1541 states have (on average 1.5671641791044777) internal successors, (2415), 1548 states have internal predecessors, (2415), 530 states have call successors, (530), 10 states have call predecessors, (530), 10 states have return successors, (530), 523 states have call predecessors, (530), 530 states have call successors, (530) [2024-11-22 07:41:03,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 3475 transitions. [2024-11-22 07:41:03,084 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 3475 transitions. Word has length 645 [2024-11-22 07:41:03,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:03,086 INFO L471 AbstractCegarLoop]: Abstraction has 2082 states and 3475 transitions. [2024-11-22 07:41:03,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:03,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 3475 transitions. [2024-11-22 07:41:03,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-22 07:41:03,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:03,092 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:03,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:41:03,092 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:03,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:03,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1486264016, now seen corresponding path program 1 times [2024-11-22 07:41:03,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:03,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294547173] [2024-11-22 07:41:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:03,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:03,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:03,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294547173] [2024-11-22 07:41:03,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294547173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:03,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:03,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:03,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370558575] [2024-11-22 07:41:03,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:03,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:03,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:03,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:03,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:03,605 INFO L87 Difference]: Start difference. First operand 2082 states and 3475 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:03,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:03,769 INFO L93 Difference]: Finished difference Result 5908 states and 9895 transitions. [2024-11-22 07:41:03,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:03,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 646 [2024-11-22 07:41:03,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:03,789 INFO L225 Difference]: With dead ends: 5908 [2024-11-22 07:41:03,789 INFO L226 Difference]: Without dead ends: 3995 [2024-11-22 07:41:03,795 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 07:41:03,796 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 362 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:03,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1171 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2024-11-22 07:41:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3993. [2024-11-22 07:41:04,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3993 states, 3012 states have (on average 1.5776892430278884) internal successors, (4752), 3025 states have internal predecessors, (4752), 962 states have call successors, (962), 18 states have call predecessors, (962), 18 states have return successors, (962), 949 states have call predecessors, (962), 962 states have call successors, (962) [2024-11-22 07:41:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3993 states to 3993 states and 6676 transitions. [2024-11-22 07:41:04,203 INFO L78 Accepts]: Start accepts. Automaton has 3993 states and 6676 transitions. Word has length 646 [2024-11-22 07:41:04,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:04,204 INFO L471 AbstractCegarLoop]: Abstraction has 3993 states and 6676 transitions. [2024-11-22 07:41:04,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:04,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3993 states and 6676 transitions. [2024-11-22 07:41:04,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-22 07:41:04,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:04,215 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:04,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:41:04,216 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:04,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash 100060622, now seen corresponding path program 1 times [2024-11-22 07:41:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:04,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137751282] [2024-11-22 07:41:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:04,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:04,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:04,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137751282] [2024-11-22 07:41:04,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137751282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:04,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:04,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:41:04,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055932784] [2024-11-22 07:41:04,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:04,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:41:04,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:04,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:41:04,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:41:04,930 INFO L87 Difference]: Start difference. First operand 3993 states and 6676 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:05,541 INFO L93 Difference]: Finished difference Result 9445 states and 15825 transitions. [2024-11-22 07:41:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:41:05,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 646 [2024-11-22 07:41:05,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:05,575 INFO L225 Difference]: With dead ends: 9445 [2024-11-22 07:41:05,576 INFO L226 Difference]: Without dead ends: 5621 [2024-11-22 07:41:05,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:41:05,591 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 599 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:05,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1744 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:41:05,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5621 states. [2024-11-22 07:41:06,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5621 to 5107. [2024-11-22 07:41:06,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 4126 states have (on average 1.6250605913717886) internal successors, (6705), 4138 states have internal predecessors, (6705), 962 states have call successors, (962), 18 states have call predecessors, (962), 18 states have return successors, (962), 950 states have call predecessors, (962), 962 states have call successors, (962) [2024-11-22 07:41:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 8629 transitions. [2024-11-22 07:41:06,068 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 8629 transitions. Word has length 646 [2024-11-22 07:41:06,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:06,070 INFO L471 AbstractCegarLoop]: Abstraction has 5107 states and 8629 transitions. [2024-11-22 07:41:06,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 8629 transitions. [2024-11-22 07:41:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-11-22 07:41:06,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:06,077 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:06,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:41:06,078 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:06,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1852259300, now seen corresponding path program 1 times [2024-11-22 07:41:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963600438] [2024-11-22 07:41:06,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:06,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:07,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:07,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963600438] [2024-11-22 07:41:07,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963600438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:07,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:07,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:41:07,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911367908] [2024-11-22 07:41:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:07,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:41:07,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:07,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:41:07,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:41:07,367 INFO L87 Difference]: Start difference. First operand 5107 states and 8629 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:09,487 INFO L93 Difference]: Finished difference Result 27059 states and 45807 transitions. [2024-11-22 07:41:09,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:41:09,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 647 [2024-11-22 07:41:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:09,609 INFO L225 Difference]: With dead ends: 27059 [2024-11-22 07:41:09,609 INFO L226 Difference]: Without dead ends: 22223 [2024-11-22 07:41:09,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 07:41:09,638 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 2886 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:09,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 2461 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 07:41:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22223 states. [2024-11-22 07:41:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22223 to 18363. [2024-11-22 07:41:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18363 states, 15477 states have (on average 1.649544485365381) internal successors, (25530), 15537 states have internal predecessors, (25530), 2818 states have call successors, (2818), 67 states have call predecessors, (2818), 67 states have return successors, (2818), 2758 states have call predecessors, (2818), 2818 states have call successors, (2818) [2024-11-22 07:41:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18363 states to 18363 states and 31166 transitions. [2024-11-22 07:41:10,743 INFO L78 Accepts]: Start accepts. Automaton has 18363 states and 31166 transitions. Word has length 647 [2024-11-22 07:41:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:10,745 INFO L471 AbstractCegarLoop]: Abstraction has 18363 states and 31166 transitions. [2024-11-22 07:41:10,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 18363 states and 31166 transitions. [2024-11-22 07:41:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-11-22 07:41:10,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:10,768 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:10,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:41:10,768 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:10,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:10,769 INFO L85 PathProgramCache]: Analyzing trace with hash 884908646, now seen corresponding path program 1 times [2024-11-22 07:41:10,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:10,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812402539] [2024-11-22 07:41:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:10,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:11,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:11,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812402539] [2024-11-22 07:41:11,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812402539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:11,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:11,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:11,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260848068] [2024-11-22 07:41:11,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:11,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:11,460 INFO L87 Difference]: Start difference. First operand 18363 states and 31166 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:13,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:13,014 INFO L93 Difference]: Finished difference Result 54720 states and 92921 transitions. [2024-11-22 07:41:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:13,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 647 [2024-11-22 07:41:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:13,151 INFO L225 Difference]: With dead ends: 54720 [2024-11-22 07:41:13,151 INFO L226 Difference]: Without dead ends: 36548 [2024-11-22 07:41:13,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 07:41:13,227 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 394 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:13,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1122 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:41:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36548 states. [2024-11-22 07:41:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36548 to 36538. [2024-11-22 07:41:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36538 states, 30868 states have (on average 1.644065051185694) internal successors, (50749), 30988 states have internal predecessors, (50749), 5538 states have call successors, (5538), 131 states have call predecessors, (5538), 131 states have return successors, (5538), 5418 states have call predecessors, (5538), 5538 states have call successors, (5538) [2024-11-22 07:41:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36538 states to 36538 states and 61825 transitions. [2024-11-22 07:41:15,273 INFO L78 Accepts]: Start accepts. Automaton has 36538 states and 61825 transitions. Word has length 647 [2024-11-22 07:41:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:15,274 INFO L471 AbstractCegarLoop]: Abstraction has 36538 states and 61825 transitions. [2024-11-22 07:41:15,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 36538 states and 61825 transitions. [2024-11-22 07:41:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2024-11-22 07:41:15,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:15,297 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:15,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:41:15,297 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:15,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:15,298 INFO L85 PathProgramCache]: Analyzing trace with hash 86666994, now seen corresponding path program 1 times [2024-11-22 07:41:15,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:15,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206567383] [2024-11-22 07:41:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:16,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:16,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206567383] [2024-11-22 07:41:16,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206567383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:16,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:16,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:41:16,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076726378] [2024-11-22 07:41:16,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:16,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:41:16,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:16,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:41:16,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:41:16,310 INFO L87 Difference]: Start difference. First operand 36538 states and 61825 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:22,141 INFO L93 Difference]: Finished difference Result 128955 states and 216937 transitions. [2024-11-22 07:41:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 07:41:22,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 648 [2024-11-22 07:41:22,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:22,619 INFO L225 Difference]: With dead ends: 128955 [2024-11-22 07:41:22,619 INFO L226 Difference]: Without dead ends: 99801 [2024-11-22 07:41:22,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 07:41:22,719 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 1485 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:22,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 3076 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 07:41:22,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99801 states. [2024-11-22 07:41:27,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99801 to 99755. [2024-11-22 07:41:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99755 states, 82949 states have (on average 1.626987667120761) internal successors, (134957), 83309 states have internal predecessors, (134957), 16418 states have call successors, (16418), 387 states have call predecessors, (16418), 387 states have return successors, (16418), 16058 states have call predecessors, (16418), 16418 states have call successors, (16418) [2024-11-22 07:41:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99755 states to 99755 states and 167793 transitions. [2024-11-22 07:41:28,815 INFO L78 Accepts]: Start accepts. Automaton has 99755 states and 167793 transitions. Word has length 648 [2024-11-22 07:41:28,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:28,816 INFO L471 AbstractCegarLoop]: Abstraction has 99755 states and 167793 transitions. [2024-11-22 07:41:28,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 99755 states and 167793 transitions. [2024-11-22 07:41:28,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2024-11-22 07:41:28,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:28,859 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:28,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:41:28,859 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:28,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1285140304, now seen corresponding path program 1 times [2024-11-22 07:41:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:28,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062834865] [2024-11-22 07:41:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:30,260 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-22 07:41:30,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:30,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062834865] [2024-11-22 07:41:30,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062834865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:30,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:30,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:41:30,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222216332] [2024-11-22 07:41:30,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:30,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:41:30,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:30,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:41:30,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:41:30,265 INFO L87 Difference]: Start difference. First operand 99755 states and 167793 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-22 07:41:40,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:40,354 INFO L93 Difference]: Finished difference Result 330606 states and 554591 transitions. [2024-11-22 07:41:40,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:41:40,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 648 [2024-11-22 07:41:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:41,315 INFO L225 Difference]: With dead ends: 330606 [2024-11-22 07:41:41,315 INFO L226 Difference]: Without dead ends: 240844 [2024-11-22 07:41:41,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:41:41,552 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 1309 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:41,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 2533 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:41:41,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240844 states.