./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-94.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-94.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 f77433b0235b4c0f298601a8bd2e51eb6bad91a326e3369071939e1038cc8204 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:56:47,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:56:47,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:56:47,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:56:47,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:56:47,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:56:47,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:56:47,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:56:47,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:56:47,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:56:47,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:56:47,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:56:47,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:56:47,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:56:47,303 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:56:47,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:56:47,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:56:47,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:56:47,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:56:47,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:56:47,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:56:47,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:56:47,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:56:47,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:56:47,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:56:47,312 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:56:47,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:56:47,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:56:47,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:56:47,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:56:47,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:56:47,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:56:47,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:56:47,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:56:47,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:56:47,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:56:47,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:56:47,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:56:47,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:56:47,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:56:47,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:56:47,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:56:47,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f77433b0235b4c0f298601a8bd2e51eb6bad91a326e3369071939e1038cc8204 [2024-11-18 19:56:47,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:56:47,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:56:47,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:56:47,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:56:47,592 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:56:47,593 INFO L431 ainManager$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-94.i [2024-11-18 19:56:49,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:56:49,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:56:49,359 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-94.i [2024-11-18 19:56:49,381 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba255c34f/782919e534f64e588568ee16bb62ac1d/FLAG6c2091644 [2024-11-18 19:56:49,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba255c34f/782919e534f64e588568ee16bb62ac1d [2024-11-18 19:56:49,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:56:49,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:56:49,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:56:49,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:56:49,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:56:49,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:49" (1/1) ... [2024-11-18 19:56:49,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a041429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:49, skipping insertion in model container [2024-11-18 19:56:49,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:49" (1/1) ... [2024-11-18 19:56:49,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:56:49,899 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-94.i[916,929] [2024-11-18 19:56:50,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:56:50,127 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:56:50,142 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-94.i[916,929] [2024-11-18 19:56:50,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:56:50,267 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:56:50,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50 WrapperNode [2024-11-18 19:56:50,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:56:50,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:56:50,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:56:50,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:56:50,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,423 INFO L138 Inliner]: procedures = 26, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 932 [2024-11-18 19:56:50,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:56:50,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:56:50,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:56:50,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:56:50,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,492 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:56:50,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:56:50,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:56:50,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:56:50,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:56:50,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (1/1) ... [2024-11-18 19:56:50,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:56:50,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:56:50,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:56:50,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:56:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:56:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:56:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:56:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:56:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:56:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:56:50,811 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:56:50,813 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:56:52,266 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-18 19:56:52,266 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:56:52,297 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:56:52,297 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:56:52,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:56:52 BoogieIcfgContainer [2024-11-18 19:56:52,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:56:52,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:56:52,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:56:52,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:56:52,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:56:49" (1/3) ... [2024-11-18 19:56:52,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68370321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:56:52, skipping insertion in model container [2024-11-18 19:56:52,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:50" (2/3) ... [2024-11-18 19:56:52,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68370321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:56:52, skipping insertion in model container [2024-11-18 19:56:52,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:56:52" (3/3) ... [2024-11-18 19:56:52,307 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-94.i [2024-11-18 19:56:52,323 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:56:52,323 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:56:52,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:56:52,418 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;@5ac75860, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:56:52,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:56:52,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 379 states, 256 states have (on average 1.5703125) internal successors, (402), 257 states have internal predecessors, (402), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 19:56:52,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-18 19:56:52,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:56:52,477 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:56:52,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:56:52,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:56:52,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1758832323, now seen corresponding path program 1 times [2024-11-18 19:56:52,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:56:52,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70134564] [2024-11-18 19:56:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:52,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:56:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:53,332 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 28322 trivial. 0 not checked. [2024-11-18 19:56:53,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:56:53,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70134564] [2024-11-18 19:56:53,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70134564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:56:53,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992334674] [2024-11-18 19:56:53,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:53,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:56:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:56:53,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:56:53,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:56:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:53,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:56:53,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:56:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 28322 trivial. 0 not checked. [2024-11-18 19:56:53,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:56:53,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992334674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:56:53,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:56:53,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:56:53,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812690752] [2024-11-18 19:56:53,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:56:53,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:56:53,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:56:53,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:56:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:56:53,995 INFO L87 Difference]: Start difference. First operand has 379 states, 256 states have (on average 1.5703125) internal successors, (402), 257 states have internal predecessors, (402), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) [2024-11-18 19:56:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:56:54,085 INFO L93 Difference]: Finished difference Result 751 states and 1398 transitions. [2024-11-18 19:56:54,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:56:54,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) Word has length 775 [2024-11-18 19:56:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:56:54,103 INFO L225 Difference]: With dead ends: 751 [2024-11-18 19:56:54,103 INFO L226 Difference]: Without dead ends: 375 [2024-11-18 19:56:54,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:56:54,118 INFO L432 NwaCegarLoop]: 632 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, 632 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:56:54,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:56:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-18 19:56:54,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-11-18 19:56:54,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 253 states have (on average 1.5494071146245059) internal successors, (392), 253 states have internal predecessors, (392), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 19:56:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 632 transitions. [2024-11-18 19:56:54,229 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 632 transitions. Word has length 775 [2024-11-18 19:56:54,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:56:54,231 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 632 transitions. [2024-11-18 19:56:54,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) [2024-11-18 19:56:54,233 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 632 transitions. [2024-11-18 19:56:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-18 19:56:54,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:56:54,255 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:56:54,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:56:54,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:56:54,460 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:56:54,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:56:54,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1243617823, now seen corresponding path program 1 times [2024-11-18 19:56:54,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:56:54,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805022606] [2024-11-18 19:56:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:54,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:56:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:56:55,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:56:55,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805022606] [2024-11-18 19:56:55,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805022606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:56:55,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:56:55,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:56:55,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676017697] [2024-11-18 19:56:55,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:56:55,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:56:55,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:56:55,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:56:55,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:55,372 INFO L87 Difference]: Start difference. First operand 375 states and 632 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:56:55,513 INFO L93 Difference]: Finished difference Result 1107 states and 1872 transitions. [2024-11-18 19:56:55,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:56:55,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 775 [2024-11-18 19:56:55,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:56:55,530 INFO L225 Difference]: With dead ends: 1107 [2024-11-18 19:56:55,530 INFO L226 Difference]: Without dead ends: 735 [2024-11-18 19:56:55,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:55,535 INFO L432 NwaCegarLoop]: 953 mSDtfsCounter, 596 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:56:55,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1561 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:56:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-18 19:56:55,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 406. [2024-11-18 19:56:55,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 284 states have (on average 1.5809859154929577) internal successors, (449), 284 states have internal predecessors, (449), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 19:56:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 689 transitions. [2024-11-18 19:56:55,617 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 689 transitions. Word has length 775 [2024-11-18 19:56:55,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:56:55,620 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 689 transitions. [2024-11-18 19:56:55,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 689 transitions. [2024-11-18 19:56:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2024-11-18 19:56:55,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:56:55,644 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:56:55,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:56:55,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:56:55,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:56:55,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1716517802, now seen corresponding path program 1 times [2024-11-18 19:56:55,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:56:55,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162640228] [2024-11-18 19:56:55,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:55,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:56:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:56,070 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:56:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:56:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162640228] [2024-11-18 19:56:56,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162640228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:56:56,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:56:56,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:56:56,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569434386] [2024-11-18 19:56:56,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:56:56,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:56:56,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:56:56,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:56:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:56,075 INFO L87 Difference]: Start difference. First operand 406 states and 689 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:56,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:56:56,161 INFO L93 Difference]: Finished difference Result 1074 states and 1833 transitions. [2024-11-18 19:56:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:56:56,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 776 [2024-11-18 19:56:56,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:56:56,170 INFO L225 Difference]: With dead ends: 1074 [2024-11-18 19:56:56,170 INFO L226 Difference]: Without dead ends: 671 [2024-11-18 19:56:56,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:56,174 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 373 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:56:56,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1340 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:56:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-18 19:56:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 668. [2024-11-18 19:56:56,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 506 states have (on average 1.6225296442687747) internal successors, (821), 507 states have internal predecessors, (821), 159 states have call successors, (159), 2 states have call predecessors, (159), 2 states have return successors, (159), 158 states have call predecessors, (159), 159 states have call successors, (159) [2024-11-18 19:56:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1139 transitions. [2024-11-18 19:56:56,248 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1139 transitions. Word has length 776 [2024-11-18 19:56:56,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:56:56,252 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 1139 transitions. [2024-11-18 19:56:56,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1139 transitions. [2024-11-18 19:56:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2024-11-18 19:56:56,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:56:56,261 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:56:56,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:56:56,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:56:56,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:56:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1202616437, now seen corresponding path program 1 times [2024-11-18 19:56:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:56:56,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916805717] [2024-11-18 19:56:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:56:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:56:56,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:56:56,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916805717] [2024-11-18 19:56:56,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916805717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:56:56,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:56:56,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:56:56,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298233401] [2024-11-18 19:56:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:56:56,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:56:56,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:56:56,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:56:56,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:56,672 INFO L87 Difference]: Start difference. First operand 668 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:56,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:56:56,775 INFO L93 Difference]: Finished difference Result 1994 states and 3403 transitions. [2024-11-18 19:56:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:56:56,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 777 [2024-11-18 19:56:56,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:56:56,787 INFO L225 Difference]: With dead ends: 1994 [2024-11-18 19:56:56,787 INFO L226 Difference]: Without dead ends: 1329 [2024-11-18 19:56:56,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:56,791 INFO L432 NwaCegarLoop]: 753 mSDtfsCounter, 595 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:56:56,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1364 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:56:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-18 19:56:56,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1327. [2024-11-18 19:56:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1004 states have (on average 1.6075697211155378) internal successors, (1614), 1006 states have internal predecessors, (1614), 318 states have call successors, (318), 4 states have call predecessors, (318), 4 states have return successors, (318), 316 states have call predecessors, (318), 318 states have call successors, (318) [2024-11-18 19:56:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2250 transitions. [2024-11-18 19:56:56,911 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2250 transitions. Word has length 777 [2024-11-18 19:56:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:56:56,914 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 2250 transitions. [2024-11-18 19:56:56,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2250 transitions. [2024-11-18 19:56:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2024-11-18 19:56:56,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:56:56,923 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:56:56,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:56:56,924 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:56:56,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:56:56,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1664975983, now seen corresponding path program 1 times [2024-11-18 19:56:56,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:56:56,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331640862] [2024-11-18 19:56:56,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:56,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:56:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:56:57,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:56:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331640862] [2024-11-18 19:56:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331640862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:56:57,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:56:57,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:56:57,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575128358] [2024-11-18 19:56:57,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:56:57,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:56:57,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:56:57,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:56:57,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:57,308 INFO L87 Difference]: Start difference. First operand 1327 states and 2250 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:57,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:56:57,417 INFO L93 Difference]: Finished difference Result 3437 states and 5810 transitions. [2024-11-18 19:56:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:56:57,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 777 [2024-11-18 19:56:57,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:56:57,432 INFO L225 Difference]: With dead ends: 3437 [2024-11-18 19:56:57,432 INFO L226 Difference]: Without dead ends: 2113 [2024-11-18 19:56:57,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:57,438 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 387 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:56:57,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1246 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:56:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-11-18 19:56:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 2109. [2024-11-18 19:56:57,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 1544 states have (on average 1.5829015544041452) internal successors, (2444), 1550 states have internal predecessors, (2444), 556 states have call successors, (556), 8 states have call predecessors, (556), 8 states have return successors, (556), 550 states have call predecessors, (556), 556 states have call successors, (556) [2024-11-18 19:56:57,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3556 transitions. [2024-11-18 19:56:57,725 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3556 transitions. Word has length 777 [2024-11-18 19:56:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:56:57,727 INFO L471 AbstractCegarLoop]: Abstraction has 2109 states and 3556 transitions. [2024-11-18 19:56:57,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3556 transitions. [2024-11-18 19:56:57,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2024-11-18 19:56:57,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:56:57,738 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:56:57,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:56:57,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:56:57,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:56:57,741 INFO L85 PathProgramCache]: Analyzing trace with hash 933008557, now seen corresponding path program 1 times [2024-11-18 19:56:57,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:56:57,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416730542] [2024-11-18 19:56:57,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:57,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:56:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:56:58,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:56:58,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416730542] [2024-11-18 19:56:58,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416730542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:56:58,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:56:58,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:56:58,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411430783] [2024-11-18 19:56:58,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:56:58,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:56:58,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:56:58,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:56:58,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:58,166 INFO L87 Difference]: Start difference. First operand 2109 states and 3556 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:56:58,376 INFO L93 Difference]: Finished difference Result 5789 states and 9742 transitions. [2024-11-18 19:56:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:56:58,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 777 [2024-11-18 19:56:58,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:56:58,403 INFO L225 Difference]: With dead ends: 5789 [2024-11-18 19:56:58,404 INFO L226 Difference]: Without dead ends: 3683 [2024-11-18 19:56:58,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:58,417 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 384 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:56:58,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1455 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:56:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2024-11-18 19:56:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3679. [2024-11-18 19:56:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 2626 states have (on average 1.5544554455445545) internal successors, (4082), 2640 states have internal predecessors, (4082), 1036 states have call successors, (1036), 16 states have call predecessors, (1036), 16 states have return successors, (1036), 1022 states have call predecessors, (1036), 1036 states have call successors, (1036) [2024-11-18 19:56:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 6154 transitions. [2024-11-18 19:56:58,819 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 6154 transitions. Word has length 777 [2024-11-18 19:56:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:56:58,820 INFO L471 AbstractCegarLoop]: Abstraction has 3679 states and 6154 transitions. [2024-11-18 19:56:58,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 6154 transitions. [2024-11-18 19:56:58,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2024-11-18 19:56:58,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:56:58,831 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:56:58,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:56:58,831 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:56:58,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:56:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1107364937, now seen corresponding path program 1 times [2024-11-18 19:56:58,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:56:58,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934083157] [2024-11-18 19:56:58,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:56:58,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:56:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:56:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:56:59,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:56:59,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934083157] [2024-11-18 19:56:59,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934083157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:56:59,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:56:59,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:56:59,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653273695] [2024-11-18 19:56:59,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:56:59,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:56:59,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:56:59,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:56:59,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:59,152 INFO L87 Difference]: Start difference. First operand 3679 states and 6154 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:56:59,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:56:59,549 INFO L93 Difference]: Finished difference Result 11031 states and 18456 transitions. [2024-11-18 19:56:59,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:56:59,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 778 [2024-11-18 19:56:59,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:56:59,605 INFO L225 Difference]: With dead ends: 11031 [2024-11-18 19:56:59,606 INFO L226 Difference]: Without dead ends: 7355 [2024-11-18 19:56:59,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:56:59,624 INFO L432 NwaCegarLoop]: 1146 mSDtfsCounter, 626 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:56:59,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1772 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:56:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7355 states. [2024-11-18 19:57:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7355 to 7353. [2024-11-18 19:57:00,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7353 states, 5248 states have (on average 1.5518292682926829) internal successors, (8144), 5276 states have internal predecessors, (8144), 2072 states have call successors, (2072), 32 states have call predecessors, (2072), 32 states have return successors, (2072), 2044 states have call predecessors, (2072), 2072 states have call successors, (2072) [2024-11-18 19:57:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 12288 transitions. [2024-11-18 19:57:00,764 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 12288 transitions. Word has length 778 [2024-11-18 19:57:00,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:00,765 INFO L471 AbstractCegarLoop]: Abstraction has 7353 states and 12288 transitions. [2024-11-18 19:57:00,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:00,766 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 12288 transitions. [2024-11-18 19:57:00,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2024-11-18 19:57:00,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:00,778 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:00,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:57:00,778 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:00,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:00,779 INFO L85 PathProgramCache]: Analyzing trace with hash 754276555, now seen corresponding path program 1 times [2024-11-18 19:57:00,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:00,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15352191] [2024-11-18 19:57:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:00,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:01,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15352191] [2024-11-18 19:57:01,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15352191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:01,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:01,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031957746] [2024-11-18 19:57:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:01,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:01,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:01,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:01,104 INFO L87 Difference]: Start difference. First operand 7353 states and 12288 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:01,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:01,630 INFO L93 Difference]: Finished difference Result 14811 states and 24762 transitions. [2024-11-18 19:57:01,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:01,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 778 [2024-11-18 19:57:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:01,713 INFO L225 Difference]: With dead ends: 14811 [2024-11-18 19:57:01,713 INFO L226 Difference]: Without dead ends: 7461 [2024-11-18 19:57:01,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:01,740 INFO L432 NwaCegarLoop]: 1139 mSDtfsCounter, 570 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:01,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1748 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7461 states. [2024-11-18 19:57:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7461 to 7459. [2024-11-18 19:57:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7459 states, 5354 states have (on average 1.5465072842734404) internal successors, (8280), 5382 states have internal predecessors, (8280), 2072 states have call successors, (2072), 32 states have call predecessors, (2072), 32 states have return successors, (2072), 2044 states have call predecessors, (2072), 2072 states have call successors, (2072) [2024-11-18 19:57:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7459 states to 7459 states and 12424 transitions. [2024-11-18 19:57:02,610 INFO L78 Accepts]: Start accepts. Automaton has 7459 states and 12424 transitions. Word has length 778 [2024-11-18 19:57:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:02,611 INFO L471 AbstractCegarLoop]: Abstraction has 7459 states and 12424 transitions. [2024-11-18 19:57:02,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7459 states and 12424 transitions. [2024-11-18 19:57:02,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:57:02,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:02,624 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:02,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:57:02,624 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:02,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash 908138476, now seen corresponding path program 1 times [2024-11-18 19:57:02,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:02,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919356584] [2024-11-18 19:57:02,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:02,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:02,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:02,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919356584] [2024-11-18 19:57:02,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919356584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:02,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:02,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:02,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895852240] [2024-11-18 19:57:02,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:02,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:02,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:02,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:02,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:02,987 INFO L87 Difference]: Start difference. First operand 7459 states and 12424 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:03,945 INFO L93 Difference]: Finished difference Result 21053 states and 34946 transitions. [2024-11-18 19:57:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:03,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 779 [2024-11-18 19:57:03,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:04,054 INFO L225 Difference]: With dead ends: 21053 [2024-11-18 19:57:04,055 INFO L226 Difference]: Without dead ends: 13597 [2024-11-18 19:57:04,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:04,101 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 373 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1249 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 [2024-11-18 19:57:04,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1249 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:04,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13597 states. [2024-11-18 19:57:05,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13597 to 13591. [2024-11-18 19:57:05,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13591 states, 9498 states have (on average 1.5194777847967993) internal successors, (14432), 9558 states have internal predecessors, (14432), 4028 states have call successors, (4028), 64 states have call predecessors, (4028), 64 states have return successors, (4028), 3968 states have call predecessors, (4028), 4028 states have call successors, (4028) [2024-11-18 19:57:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13591 states to 13591 states and 22488 transitions. [2024-11-18 19:57:05,775 INFO L78 Accepts]: Start accepts. Automaton has 13591 states and 22488 transitions. Word has length 779 [2024-11-18 19:57:05,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:05,777 INFO L471 AbstractCegarLoop]: Abstraction has 13591 states and 22488 transitions. [2024-11-18 19:57:05,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 13591 states and 22488 transitions. [2024-11-18 19:57:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:57:05,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:05,796 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:05,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:57:05,796 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:05,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1609738350, now seen corresponding path program 1 times [2024-11-18 19:57:05,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:05,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543289187] [2024-11-18 19:57:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:05,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:06,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543289187] [2024-11-18 19:57:06,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543289187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:06,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:06,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:06,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918865752] [2024-11-18 19:57:06,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:06,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:06,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:06,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:06,115 INFO L87 Difference]: Start difference. First operand 13591 states and 22488 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:07,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:07,344 INFO L93 Difference]: Finished difference Result 40767 states and 67458 transitions. [2024-11-18 19:57:07,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:07,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 779 [2024-11-18 19:57:07,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:07,520 INFO L225 Difference]: With dead ends: 40767 [2024-11-18 19:57:07,520 INFO L226 Difference]: Without dead ends: 27179 [2024-11-18 19:57:07,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:07,598 INFO L432 NwaCegarLoop]: 1202 mSDtfsCounter, 621 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:07,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1827 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27179 states. [2024-11-18 19:57:10,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27179 to 27113. [2024-11-18 19:57:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27113 states, 18928 states have (on average 1.5112003381234151) internal successors, (28604), 19048 states have internal predecessors, (28604), 8056 states have call successors, (8056), 128 states have call predecessors, (8056), 128 states have return successors, (8056), 7936 states have call predecessors, (8056), 8056 states have call successors, (8056) [2024-11-18 19:57:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27113 states to 27113 states and 44716 transitions. [2024-11-18 19:57:10,504 INFO L78 Accepts]: Start accepts. Automaton has 27113 states and 44716 transitions. Word has length 779 [2024-11-18 19:57:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:10,506 INFO L471 AbstractCegarLoop]: Abstraction has 27113 states and 44716 transitions. [2024-11-18 19:57:10,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 27113 states and 44716 transitions. [2024-11-18 19:57:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:57:10,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:10,527 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:10,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:57:10,528 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:10,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash -879790612, now seen corresponding path program 1 times [2024-11-18 19:57:10,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:10,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956494064] [2024-11-18 19:57:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:11,060 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:11,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:11,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956494064] [2024-11-18 19:57:11,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956494064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:11,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:11,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:11,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222916465] [2024-11-18 19:57:11,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:11,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:11,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:11,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:11,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:11,064 INFO L87 Difference]: Start difference. First operand 27113 states and 44716 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:12,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:12,827 INFO L93 Difference]: Finished difference Result 54239 states and 89461 transitions. [2024-11-18 19:57:12,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:12,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 779 [2024-11-18 19:57:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:13,046 INFO L225 Difference]: With dead ends: 54239 [2024-11-18 19:57:13,046 INFO L226 Difference]: Without dead ends: 27129 [2024-11-18 19:57:13,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:13,159 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 0 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:13,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1236 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:13,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27129 states. [2024-11-18 19:57:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27129 to 27129. [2024-11-18 19:57:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27129 states, 18944 states have (on average 1.5107685810810811) internal successors, (28620), 19064 states have internal predecessors, (28620), 8056 states have call successors, (8056), 128 states have call predecessors, (8056), 128 states have return successors, (8056), 7936 states have call predecessors, (8056), 8056 states have call successors, (8056) [2024-11-18 19:57:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27129 states to 27129 states and 44732 transitions. [2024-11-18 19:57:15,583 INFO L78 Accepts]: Start accepts. Automaton has 27129 states and 44732 transitions. Word has length 779 [2024-11-18 19:57:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:15,584 INFO L471 AbstractCegarLoop]: Abstraction has 27129 states and 44732 transitions. [2024-11-18 19:57:15,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:15,585 INFO L276 IsEmpty]: Start isEmpty. Operand 27129 states and 44732 transitions. [2024-11-18 19:57:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:57:15,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:15,604 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:15,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:57:15,605 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:15,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash 262711854, now seen corresponding path program 1 times [2024-11-18 19:57:15,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:15,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764490759] [2024-11-18 19:57:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:16,682 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:16,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:16,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764490759] [2024-11-18 19:57:16,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764490759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:16,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:16,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:16,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782610636] [2024-11-18 19:57:16,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:16,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:16,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:16,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:16,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:16,687 INFO L87 Difference]: Start difference. First operand 27129 states and 44732 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:18,906 INFO L93 Difference]: Finished difference Result 81381 states and 134190 transitions. [2024-11-18 19:57:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 779 [2024-11-18 19:57:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:19,281 INFO L225 Difference]: With dead ends: 81381 [2024-11-18 19:57:19,281 INFO L226 Difference]: Without dead ends: 54255 [2024-11-18 19:57:19,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:19,415 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 422 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:19,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1254 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54255 states. [2024-11-18 19:57:22,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54255 to 54253. [2024-11-18 19:57:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54253 states, 37884 states have (on average 1.5095554851652413) internal successors, (57188), 38124 states have internal predecessors, (57188), 16112 states have call successors, (16112), 256 states have call predecessors, (16112), 256 states have return successors, (16112), 15872 states have call predecessors, (16112), 16112 states have call successors, (16112) [2024-11-18 19:57:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54253 states to 54253 states and 89412 transitions. [2024-11-18 19:57:23,336 INFO L78 Accepts]: Start accepts. Automaton has 54253 states and 89412 transitions. Word has length 779 [2024-11-18 19:57:23,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:23,337 INFO L471 AbstractCegarLoop]: Abstraction has 54253 states and 89412 transitions. [2024-11-18 19:57:23,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 54253 states and 89412 transitions. [2024-11-18 19:57:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-18 19:57:23,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:23,381 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:23,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:57:23,381 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:23,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:23,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2110694382, now seen corresponding path program 1 times [2024-11-18 19:57:23,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:23,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760746104] [2024-11-18 19:57:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:23,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:24,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:24,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760746104] [2024-11-18 19:57:24,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760746104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:24,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:24,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:24,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430718218] [2024-11-18 19:57:24,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:24,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:24,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:24,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:24,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:24,247 INFO L87 Difference]: Start difference. First operand 54253 states and 89412 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:26,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:26,930 INFO L93 Difference]: Finished difference Result 108599 states and 178981 transitions. [2024-11-18 19:57:26,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:26,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 779 [2024-11-18 19:57:26,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:27,346 INFO L225 Difference]: With dead ends: 108599 [2024-11-18 19:57:27,346 INFO L226 Difference]: Without dead ends: 54349 [2024-11-18 19:57:27,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:27,537 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 2 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:27,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1248 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54349 states. [2024-11-18 19:57:31,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54349 to 54285. [2024-11-18 19:57:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54285 states, 37916 states have (on average 1.5091254351724865) internal successors, (57220), 38156 states have internal predecessors, (57220), 16112 states have call successors, (16112), 256 states have call predecessors, (16112), 256 states have return successors, (16112), 15872 states have call predecessors, (16112), 16112 states have call successors, (16112) [2024-11-18 19:57:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54285 states to 54285 states and 89444 transitions. [2024-11-18 19:57:31,428 INFO L78 Accepts]: Start accepts. Automaton has 54285 states and 89444 transitions. Word has length 779 [2024-11-18 19:57:31,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:31,430 INFO L471 AbstractCegarLoop]: Abstraction has 54285 states and 89444 transitions. [2024-11-18 19:57:31,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:31,430 INFO L276 IsEmpty]: Start isEmpty. Operand 54285 states and 89444 transitions. [2024-11-18 19:57:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2024-11-18 19:57:31,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:31,459 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:31,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:57:31,459 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:31,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1206948400, now seen corresponding path program 1 times [2024-11-18 19:57:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:31,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811165645] [2024-11-18 19:57:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:32,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:32,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811165645] [2024-11-18 19:57:32,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811165645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:32,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:32,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:32,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924020236] [2024-11-18 19:57:32,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:32,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:32,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:32,203 INFO L87 Difference]: Start difference. First operand 54285 states and 89444 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:34,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:34,624 INFO L93 Difference]: Finished difference Result 108663 states and 179013 transitions. [2024-11-18 19:57:34,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:34,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) Word has length 780 [2024-11-18 19:57:34,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:34,939 INFO L225 Difference]: With dead ends: 108663 [2024-11-18 19:57:34,940 INFO L226 Difference]: Without dead ends: 54381 [2024-11-18 19:57:35,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:35,125 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:35,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1249 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:35,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54381 states. [2024-11-18 19:57:38,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54381 to 54349. [2024-11-18 19:57:38,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54349 states, 37980 states have (on average 1.5082675092153766) internal successors, (57284), 38220 states have internal predecessors, (57284), 16112 states have call successors, (16112), 256 states have call predecessors, (16112), 256 states have return successors, (16112), 15872 states have call predecessors, (16112), 16112 states have call successors, (16112) [2024-11-18 19:57:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54349 states to 54349 states and 89508 transitions. [2024-11-18 19:57:38,979 INFO L78 Accepts]: Start accepts. Automaton has 54349 states and 89508 transitions. Word has length 780 [2024-11-18 19:57:38,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:38,980 INFO L471 AbstractCegarLoop]: Abstraction has 54349 states and 89508 transitions. [2024-11-18 19:57:38,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120) [2024-11-18 19:57:38,980 INFO L276 IsEmpty]: Start isEmpty. Operand 54349 states and 89508 transitions. [2024-11-18 19:57:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2024-11-18 19:57:39,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:39,007 INFO L215 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:39,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:57:39,007 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:39,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash 219177227, now seen corresponding path program 1 times [2024-11-18 19:57:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:39,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078586356] [2024-11-18 19:57:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2024-11-18 19:57:40,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:40,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078586356] [2024-11-18 19:57:40,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078586356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:40,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:40,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:40,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270518839] [2024-11-18 19:57:40,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:40,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:40,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:40,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:40,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:40,085 INFO L87 Difference]: Start difference. First operand 54349 states and 89508 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 1 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 1 states have call successors, (120)