./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-17.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-250_file-17.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 d7e06ec6fa537fe85bfdff5997d89760f89bf3ab66b37451471516c2ec0f2efb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:29:21,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:29:21,204 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:29:21,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:29:21,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:29:21,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:29:21,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:29:21,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:29:21,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:29:21,241 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:29:21,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:29:21,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:29:21,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:29:21,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:29:21,245 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:29:21,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:29:21,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:29:21,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:29:21,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:29:21,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:29:21,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:29:21,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:29:21,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:29:21,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:29:21,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:29:21,251 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:29:21,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:29:21,252 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:29:21,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:29:21,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:29:21,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:29:21,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:29:21,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:29:21,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:29:21,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:29:21,253 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:29:21,254 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:29:21,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:29:21,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:29:21,255 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:29:21,255 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:29:21,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:29:21,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7e06ec6fa537fe85bfdff5997d89760f89bf3ab66b37451471516c2ec0f2efb [2024-11-18 19:29:21,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:29:21,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:29:21,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:29:21,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:29:21,555 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:29:21,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-17.i [2024-11-18 19:29:23,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:29:23,253 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:29:23,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-17.i [2024-11-18 19:29:23,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/392fefc01/3d83d3285f114818afb56a5615bb9a7d/FLAG9353e51cd [2024-11-18 19:29:23,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/392fefc01/3d83d3285f114818afb56a5615bb9a7d [2024-11-18 19:29:23,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:29:23,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:29:23,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:29:23,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:29:23,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:29:23,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:29:23" (1/1) ... [2024-11-18 19:29:23,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413c8c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:23, skipping insertion in model container [2024-11-18 19:29:23,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:29:23" (1/1) ... [2024-11-18 19:29:23,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:29:23,856 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-250_file-17.i[916,929] [2024-11-18 19:29:24,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:29:24,028 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:29:24,041 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-250_file-17.i[916,929] [2024-11-18 19:29:24,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:29:24,222 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:29:24,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24 WrapperNode [2024-11-18 19:29:24,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:29:24,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:29:24,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:29:24,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:29:24,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,328 INFO L138 Inliner]: procedures = 26, calls = 100, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 661 [2024-11-18 19:29:24,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:29:24,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:29:24,330 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:29:24,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:29:24,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,394 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 19:29:24,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:29:24,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:29:24,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:29:24,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:29:24,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (1/1) ... [2024-11-18 19:29:24,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:29:24,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:29:24,509 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 19:29:24,516 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 19:29:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:29:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:29:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:29:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:29:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:29:24,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:29:24,669 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:29:24,671 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:29:25,551 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-11-18 19:29:25,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:29:25,579 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:29:25,579 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:29:25,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:29:25 BoogieIcfgContainer [2024-11-18 19:29:25,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:29:25,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:29:25,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:29:25,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:29:25,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:29:23" (1/3) ... [2024-11-18 19:29:25,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9f0f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:29:25, skipping insertion in model container [2024-11-18 19:29:25,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:29:24" (2/3) ... [2024-11-18 19:29:25,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9f0f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:29:25, skipping insertion in model container [2024-11-18 19:29:25,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:29:25" (3/3) ... [2024-11-18 19:29:25,592 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-17.i [2024-11-18 19:29:25,608 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:29:25,608 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:29:25,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:29:25,685 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;@710bc71f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:29:25,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:29:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 278 states, 188 states have (on average 1.5372340425531914) internal successors, (289), 189 states have internal predecessors, (289), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-18 19:29:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-18 19:29:25,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:25,733 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:25,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:25,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:25,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1856680512, now seen corresponding path program 1 times [2024-11-18 19:29:25,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:25,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626375007] [2024-11-18 19:29:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:25,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 14792 trivial. 0 not checked. [2024-11-18 19:29:26,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:26,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626375007] [2024-11-18 19:29:26,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626375007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:29:26,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433313135] [2024-11-18 19:29:26,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:26,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:29:26,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:29:26,420 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 19:29:26,421 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 19:29:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:26,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:29:26,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:29:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 14792 trivial. 0 not checked. [2024-11-18 19:29:26,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:29:26,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433313135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:26,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:29:26,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:29:26,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443782825] [2024-11-18 19:29:26,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:26,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:29:26,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:26,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:29:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:29:26,913 INFO L87 Difference]: Start difference. First operand has 278 states, 188 states have (on average 1.5372340425531914) internal successors, (289), 189 states have internal predecessors, (289), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:29:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:26,993 INFO L93 Difference]: Finished difference Result 547 states and 1003 transitions. [2024-11-18 19:29:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:29:26,997 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 2 states have call successors, (87) Word has length 540 [2024-11-18 19:29:26,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:27,009 INFO L225 Difference]: With dead ends: 547 [2024-11-18 19:29:27,010 INFO L226 Difference]: Without dead ends: 272 [2024-11-18 19:29:27,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 541 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 19:29:27,023 INFO L432 NwaCegarLoop]: 451 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, 451 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 19:29:27,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:27,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-18 19:29:27,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-18 19:29:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 183 states have (on average 1.5136612021857923) internal successors, (277), 183 states have internal predecessors, (277), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-18 19:29:27,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 451 transitions. [2024-11-18 19:29:27,125 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 451 transitions. Word has length 540 [2024-11-18 19:29:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:27,126 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 451 transitions. [2024-11-18 19:29:27,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:29:27,127 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 451 transitions. [2024-11-18 19:29:27,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-18 19:29:27,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:27,145 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:27,165 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 19:29:27,346 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 19:29:27,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:27,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:27,348 INFO L85 PathProgramCache]: Analyzing trace with hash 532016086, now seen corresponding path program 1 times [2024-11-18 19:29:27,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:27,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661993613] [2024-11-18 19:29:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:27,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:29:27,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:27,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661993613] [2024-11-18 19:29:27,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661993613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:27,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:27,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:29:27,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97884078] [2024-11-18 19:29:27,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:27,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:29:27,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:27,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:29:27,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:29:27,840 INFO L87 Difference]: Start difference. First operand 272 states and 451 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:29:27,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:27,935 INFO L93 Difference]: Finished difference Result 806 states and 1339 transitions. [2024-11-18 19:29:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:29:27,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 540 [2024-11-18 19:29:27,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:27,943 INFO L225 Difference]: With dead ends: 806 [2024-11-18 19:29:27,943 INFO L226 Difference]: Without dead ends: 537 [2024-11-18 19:29:27,944 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 19:29:27,945 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 437 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:27,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1311 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:29:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-18 19:29:28,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 535. [2024-11-18 19:29:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 358 states have (on average 1.5083798882681565) internal successors, (540), 358 states have internal predecessors, (540), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-18 19:29:28,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 888 transitions. [2024-11-18 19:29:28,032 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 888 transitions. Word has length 540 [2024-11-18 19:29:28,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:28,035 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 888 transitions. [2024-11-18 19:29:28,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:29:28,036 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 888 transitions. [2024-11-18 19:29:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-18 19:29:28,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:28,049 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:28,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:29:28,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:28,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:28,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1271599144, now seen corresponding path program 1 times [2024-11-18 19:29:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:28,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982648823] [2024-11-18 19:29:28,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:28,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:29:29,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:29,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982648823] [2024-11-18 19:29:29,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982648823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:29,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:29,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:29:29,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669675391] [2024-11-18 19:29:29,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:29,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:29:29,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:29,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:29:29,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:29:29,171 INFO L87 Difference]: Start difference. First operand 535 states and 888 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:29:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:29,791 INFO L93 Difference]: Finished difference Result 1431 states and 2382 transitions. [2024-11-18 19:29:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:29:29,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 540 [2024-11-18 19:29:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:29,804 INFO L225 Difference]: With dead ends: 1431 [2024-11-18 19:29:29,805 INFO L226 Difference]: Without dead ends: 899 [2024-11-18 19:29:29,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:29:29,811 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 415 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:29,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1592 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:29:29,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-11-18 19:29:29,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 837. [2024-11-18 19:29:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 572 states have (on average 1.534965034965035) internal successors, (878), 572 states have internal predecessors, (878), 261 states have call successors, (261), 3 states have call predecessors, (261), 3 states have return successors, (261), 261 states have call predecessors, (261), 261 states have call successors, (261) [2024-11-18 19:29:29,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1400 transitions. [2024-11-18 19:29:29,923 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1400 transitions. Word has length 540 [2024-11-18 19:29:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:29,925 INFO L471 AbstractCegarLoop]: Abstraction has 837 states and 1400 transitions. [2024-11-18 19:29:29,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:29:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1400 transitions. [2024-11-18 19:29:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-18 19:29:29,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:29,934 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:29,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:29:29,934 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:29,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1702255080, now seen corresponding path program 1 times [2024-11-18 19:29:29,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:29,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469589039] [2024-11-18 19:29:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:29,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:29:30,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:30,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469589039] [2024-11-18 19:29:30,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469589039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:30,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:30,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:29:30,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807858459] [2024-11-18 19:29:30,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:30,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:29:30,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:30,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:29:30,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:29:30,857 INFO L87 Difference]: Start difference. First operand 837 states and 1400 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:29:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:31,052 INFO L93 Difference]: Finished difference Result 2114 states and 3543 transitions. [2024-11-18 19:29:31,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:29:31,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 541 [2024-11-18 19:29:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:31,066 INFO L225 Difference]: With dead ends: 2114 [2024-11-18 19:29:31,066 INFO L226 Difference]: Without dead ends: 1498 [2024-11-18 19:29:31,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:29:31,075 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 346 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:31,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1743 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:29:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-11-18 19:29:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1484. [2024-11-18 19:29:31,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1043 states have (on average 1.5465004793863855) internal successors, (1613), 1043 states have internal predecessors, (1613), 435 states have call successors, (435), 5 states have call predecessors, (435), 5 states have return successors, (435), 435 states have call predecessors, (435), 435 states have call successors, (435) [2024-11-18 19:29:31,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 2483 transitions. [2024-11-18 19:29:31,225 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 2483 transitions. Word has length 541 [2024-11-18 19:29:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:31,226 INFO L471 AbstractCegarLoop]: Abstraction has 1484 states and 2483 transitions. [2024-11-18 19:29:31,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:29:31,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 2483 transitions. [2024-11-18 19:29:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-18 19:29:31,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:31,237 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:31,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:29:31,239 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:31,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash 612656758, now seen corresponding path program 1 times [2024-11-18 19:29:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:31,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547167306] [2024-11-18 19:29:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:32,626 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:29:32,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:32,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547167306] [2024-11-18 19:29:32,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547167306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:32,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:32,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:29:32,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909489234] [2024-11-18 19:29:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:32,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:29:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:29:32,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:29:32,630 INFO L87 Difference]: Start difference. First operand 1484 states and 2483 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:29:34,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:34,536 INFO L93 Difference]: Finished difference Result 5072 states and 8385 transitions. [2024-11-18 19:29:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:29:34,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 542 [2024-11-18 19:29:34,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:34,565 INFO L225 Difference]: With dead ends: 5072 [2024-11-18 19:29:34,566 INFO L226 Difference]: Without dead ends: 3990 [2024-11-18 19:29:34,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:29:34,574 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 1787 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:34,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 2460 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 19:29:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2024-11-18 19:29:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3532. [2024-11-18 19:29:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2554 states have (on average 1.5465935787000784) internal successors, (3950), 2562 states have internal predecessors, (3950), 961 states have call successors, (961), 16 states have call predecessors, (961), 16 states have return successors, (961), 953 states have call predecessors, (961), 961 states have call successors, (961) [2024-11-18 19:29:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 5872 transitions. [2024-11-18 19:29:35,074 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 5872 transitions. Word has length 542 [2024-11-18 19:29:35,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:35,075 INFO L471 AbstractCegarLoop]: Abstraction has 3532 states and 5872 transitions. [2024-11-18 19:29:35,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:29:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 5872 transitions. [2024-11-18 19:29:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-18 19:29:35,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:35,081 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:35,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:29:35,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:35,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:35,082 INFO L85 PathProgramCache]: Analyzing trace with hash 478643252, now seen corresponding path program 1 times [2024-11-18 19:29:35,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:35,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605342305] [2024-11-18 19:29:35,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:35,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:29:35,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:35,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605342305] [2024-11-18 19:29:35,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605342305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:35,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:35,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:29:35,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428625861] [2024-11-18 19:29:35,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:35,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:29:35,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:35,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:29:35,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:29:35,604 INFO L87 Difference]: Start difference. First operand 3532 states and 5872 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:29:36,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:36,387 INFO L93 Difference]: Finished difference Result 10336 states and 17091 transitions. [2024-11-18 19:29:36,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:29:36,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 542 [2024-11-18 19:29:36,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:36,437 INFO L225 Difference]: With dead ends: 10336 [2024-11-18 19:29:36,438 INFO L226 Difference]: Without dead ends: 7468 [2024-11-18 19:29:36,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:29:36,451 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 528 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:36,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1373 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:29:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7468 states. [2024-11-18 19:29:37,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7468 to 7454. [2024-11-18 19:29:37,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 5354 states have (on average 1.5326858423608516) internal successors, (8206), 5376 states have internal predecessors, (8206), 2063 states have call successors, (2063), 36 states have call predecessors, (2063), 36 states have return successors, (2063), 2041 states have call predecessors, (2063), 2063 states have call successors, (2063) [2024-11-18 19:29:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 12332 transitions. [2024-11-18 19:29:37,396 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 12332 transitions. Word has length 542 [2024-11-18 19:29:37,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:37,398 INFO L471 AbstractCegarLoop]: Abstraction has 7454 states and 12332 transitions. [2024-11-18 19:29:37,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:29:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 12332 transitions. [2024-11-18 19:29:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-18 19:29:37,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:37,408 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:37,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:29:37,409 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:37,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:37,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1506143096, now seen corresponding path program 1 times [2024-11-18 19:29:37,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:37,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722246239] [2024-11-18 19:29:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:37,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:38,118 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 129 proven. 129 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2024-11-18 19:29:38,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:38,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722246239] [2024-11-18 19:29:38,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722246239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:29:38,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510182125] [2024-11-18 19:29:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:38,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:29:38,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:29:38,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:29:38,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 19:29:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:38,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 19:29:38,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:29:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 7568 proven. 129 refuted. 0 times theorem prover too weak. 7267 trivial. 0 not checked. [2024-11-18 19:29:39,043 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 19:29:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 129 proven. 129 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2024-11-18 19:29:39,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510182125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 19:29:39,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 19:29:39,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-18 19:29:39,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460529075] [2024-11-18 19:29:39,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 19:29:39,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:29:39,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:39,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:29:39,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:29:39,604 INFO L87 Difference]: Start difference. First operand 7454 states and 12332 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2024-11-18 19:29:40,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:40,442 INFO L93 Difference]: Finished difference Result 11758 states and 19357 transitions. [2024-11-18 19:29:40,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:29:40,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) Word has length 542 [2024-11-18 19:29:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:40,476 INFO L225 Difference]: With dead ends: 11758 [2024-11-18 19:29:40,476 INFO L226 Difference]: Without dead ends: 4506 [2024-11-18 19:29:40,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1091 GetRequests, 1081 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:29:40,496 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 244 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:40,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 842 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:29:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2024-11-18 19:29:41,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 4440. [2024-11-18 19:29:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4440 states, 3217 states have (on average 1.5091700341933478) internal successors, (4855), 3231 states have internal predecessors, (4855), 1189 states have call successors, (1189), 33 states have call predecessors, (1189), 33 states have return successors, (1189), 1175 states have call predecessors, (1189), 1189 states have call successors, (1189) [2024-11-18 19:29:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 7233 transitions. [2024-11-18 19:29:41,088 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 7233 transitions. Word has length 542 [2024-11-18 19:29:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:41,090 INFO L471 AbstractCegarLoop]: Abstraction has 4440 states and 7233 transitions. [2024-11-18 19:29:41,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2024-11-18 19:29:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 7233 transitions. [2024-11-18 19:29:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2024-11-18 19:29:41,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:41,102 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:41,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 19:29:41,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-18 19:29:41,304 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:41,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:41,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1060995730, now seen corresponding path program 1 times [2024-11-18 19:29:41,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:41,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489372273] [2024-11-18 19:29:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:41,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:29:44,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:44,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489372273] [2024-11-18 19:29:44,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489372273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:44,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:44,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 19:29:44,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915256061] [2024-11-18 19:29:44,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:44,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 19:29:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 19:29:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:29:44,506 INFO L87 Difference]: Start difference. First operand 4440 states and 7233 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2024-11-18 19:29:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:29:53,876 INFO L93 Difference]: Finished difference Result 21546 states and 34447 transitions. [2024-11-18 19:29:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 19:29:53,878 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 543 [2024-11-18 19:29:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:29:53,983 INFO L225 Difference]: With dead ends: 21546 [2024-11-18 19:29:53,984 INFO L226 Difference]: Without dead ends: 20103 [2024-11-18 19:29:53,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2024-11-18 19:29:54,000 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 2889 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 2009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 4371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2009 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:29:54,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2889 Valid, 3125 Invalid, 4371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2009 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-18 19:29:54,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20103 states. [2024-11-18 19:29:56,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20103 to 14959. [2024-11-18 19:29:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14959 states, 10670 states have (on average 1.466916588566073) internal successors, (15652), 10752 states have internal predecessors, (15652), 4155 states have call successors, (4155), 133 states have call predecessors, (4155), 133 states have return successors, (4155), 4073 states have call predecessors, (4155), 4155 states have call successors, (4155) [2024-11-18 19:29:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14959 states to 14959 states and 23962 transitions. [2024-11-18 19:29:56,571 INFO L78 Accepts]: Start accepts. Automaton has 14959 states and 23962 transitions. Word has length 543 [2024-11-18 19:29:56,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:29:56,572 INFO L471 AbstractCegarLoop]: Abstraction has 14959 states and 23962 transitions. [2024-11-18 19:29:56,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2024-11-18 19:29:56,573 INFO L276 IsEmpty]: Start isEmpty. Operand 14959 states and 23962 transitions. [2024-11-18 19:29:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2024-11-18 19:29:56,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:29:56,584 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:56,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:29:56,585 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:29:56,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:29:56,586 INFO L85 PathProgramCache]: Analyzing trace with hash -551522640, now seen corresponding path program 1 times [2024-11-18 19:29:56,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:29:56,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214243790] [2024-11-18 19:29:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:29:56,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:29:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:29:57,247 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:29:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:29:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214243790] [2024-11-18 19:29:57,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214243790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:29:57,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:29:57,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:29:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941841870] [2024-11-18 19:29:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:29:57,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:29:57,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:29:57,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:29:57,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:29:57,251 INFO L87 Difference]: Start difference. First operand 14959 states and 23962 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:30:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:00,238 INFO L93 Difference]: Finished difference Result 28441 states and 45516 transitions. [2024-11-18 19:30:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:30:00,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 543 [2024-11-18 19:30:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:00,330 INFO L225 Difference]: With dead ends: 28441 [2024-11-18 19:30:00,331 INFO L226 Difference]: Without dead ends: 15599 [2024-11-18 19:30:00,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:30:00,387 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 512 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:00,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 642 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:30:00,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2024-11-18 19:30:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 15119. [2024-11-18 19:30:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15119 states, 10830 states have (on average 1.4600184672206833) internal successors, (15812), 10912 states have internal predecessors, (15812), 4155 states have call successors, (4155), 133 states have call predecessors, (4155), 133 states have return successors, (4155), 4073 states have call predecessors, (4155), 4155 states have call successors, (4155) [2024-11-18 19:30:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15119 states to 15119 states and 24122 transitions. [2024-11-18 19:30:03,354 INFO L78 Accepts]: Start accepts. Automaton has 15119 states and 24122 transitions. Word has length 543 [2024-11-18 19:30:03,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:03,355 INFO L471 AbstractCegarLoop]: Abstraction has 15119 states and 24122 transitions. [2024-11-18 19:30:03,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2024-11-18 19:30:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand 15119 states and 24122 transitions. [2024-11-18 19:30:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-18 19:30:03,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:03,372 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:03,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:30:03,372 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:03,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1641436148, now seen corresponding path program 1 times [2024-11-18 19:30:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:03,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256155108] [2024-11-18 19:30:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:03,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:03,690 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:30:03,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:03,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256155108] [2024-11-18 19:30:03,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256155108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:03,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:03,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:30:03,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820664461] [2024-11-18 19:30:03,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:03,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:30:03,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:03,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:30:03,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:03,694 INFO L87 Difference]: Start difference. First operand 15119 states and 24122 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:30:07,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:07,634 INFO L93 Difference]: Finished difference Result 40535 states and 64566 transitions. [2024-11-18 19:30:07,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:07,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 544 [2024-11-18 19:30:07,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:07,762 INFO L225 Difference]: With dead ends: 40535 [2024-11-18 19:30:07,762 INFO L226 Difference]: Without dead ends: 27605 [2024-11-18 19:30:07,804 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 19:30:07,805 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 227 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:07,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 826 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:07,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27605 states. [2024-11-18 19:30:12,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27605 to 27515. [2024-11-18 19:30:12,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27515 states, 20321 states have (on average 1.4690714039663402) internal successors, (29853), 20491 states have internal predecessors, (29853), 6971 states have call successors, (6971), 222 states have call predecessors, (6971), 222 states have return successors, (6971), 6801 states have call predecessors, (6971), 6971 states have call successors, (6971) [2024-11-18 19:30:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27515 states to 27515 states and 43795 transitions. [2024-11-18 19:30:12,171 INFO L78 Accepts]: Start accepts. Automaton has 27515 states and 43795 transitions. Word has length 544 [2024-11-18 19:30:12,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:12,172 INFO L471 AbstractCegarLoop]: Abstraction has 27515 states and 43795 transitions. [2024-11-18 19:30:12,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:30:12,172 INFO L276 IsEmpty]: Start isEmpty. Operand 27515 states and 43795 transitions. [2024-11-18 19:30:12,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-18 19:30:12,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:12,192 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:12,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:30:12,192 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:12,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash 158094007, now seen corresponding path program 1 times [2024-11-18 19:30:12,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:12,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589707046] [2024-11-18 19:30:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:12,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:30:12,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:12,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589707046] [2024-11-18 19:30:12,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589707046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:12,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:12,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:30:12,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082681698] [2024-11-18 19:30:12,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:12,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:30:12,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:12,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:30:12,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:12,353 INFO L87 Difference]: Start difference. First operand 27515 states and 43795 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:30:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:16,572 INFO L93 Difference]: Finished difference Result 50627 states and 80447 transitions. [2024-11-18 19:30:16,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:16,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 544 [2024-11-18 19:30:16,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:16,729 INFO L225 Difference]: With dead ends: 50627 [2024-11-18 19:30:16,729 INFO L226 Difference]: Without dead ends: 27241 [2024-11-18 19:30:16,791 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 19:30:16,792 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 195 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:16,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1006 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27241 states. [2024-11-18 19:30:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27241 to 27195. [2024-11-18 19:30:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27195 states, 20001 states have (on average 1.4605769711514425) internal successors, (29213), 20171 states have internal predecessors, (29213), 6971 states have call successors, (6971), 222 states have call predecessors, (6971), 222 states have return successors, (6971), 6801 states have call predecessors, (6971), 6971 states have call successors, (6971) [2024-11-18 19:30:20,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27195 states to 27195 states and 43155 transitions. [2024-11-18 19:30:21,035 INFO L78 Accepts]: Start accepts. Automaton has 27195 states and 43155 transitions. Word has length 544 [2024-11-18 19:30:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:21,036 INFO L471 AbstractCegarLoop]: Abstraction has 27195 states and 43155 transitions. [2024-11-18 19:30:21,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 19:30:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 27195 states and 43155 transitions. [2024-11-18 19:30:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-18 19:30:21,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:21,056 INFO L215 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:21,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:30:21,056 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:21,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash -696665013, now seen corresponding path program 1 times [2024-11-18 19:30:21,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:21,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594261042] [2024-11-18 19:30:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:21,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2024-11-18 19:30:26,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:26,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594261042] [2024-11-18 19:30:26,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594261042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:26,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:26,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 19:30:26,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659044581] [2024-11-18 19:30:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:26,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 19:30:26,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:26,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 19:30:26,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-18 19:30:26,345 INFO L87 Difference]: Start difference. First operand 27195 states and 43155 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 4 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87)