./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.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_fillercodestructure_filler-pr-cn_file-86.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 56df4eb5f1ce718ca5531ff4f8afda450f18f02286533668c4676eba9d6cba09 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 21:01:35,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 21:01:35,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 21:01:35,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 21:01:35,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 21:01:35,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 21:01:35,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 21:01:35,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 21:01:35,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 21:01:35,853 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 21:01:35,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 21:01:35,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 21:01:35,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 21:01:35,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 21:01:35,855 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 21:01:35,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 21:01:35,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 21:01:35,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 21:01:35,859 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 21:01:35,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 21:01:35,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 21:01:35,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 21:01:35,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 21:01:35,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 21:01:35,861 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 21:01:35,861 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 21:01:35,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 21:01:35,861 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 21:01:35,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 21:01:35,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 21:01:35,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 21:01:35,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 21:01:35,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 21:01:35,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 21:01:35,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 21:01:35,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 21:01:35,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 21:01:35,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 21:01:35,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 21:01:35,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 21:01:35,863 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 21:01:35,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 21:01:35,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56df4eb5f1ce718ca5531ff4f8afda450f18f02286533668c4676eba9d6cba09 [2024-11-18 21:01:36,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 21:01:36,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 21:01:36,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 21:01:36,102 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 21:01:36,103 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 21:01:36,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i [2024-11-18 21:01:37,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 21:01:37,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 21:01:37,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i [2024-11-18 21:01:37,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05335826b/fa1e219ea4ed4b8fa5bc66da75511b2c/FLAG437c64459 [2024-11-18 21:01:38,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05335826b/fa1e219ea4ed4b8fa5bc66da75511b2c [2024-11-18 21:01:38,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 21:01:38,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 21:01:38,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 21:01:38,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 21:01:38,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 21:01:38,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a871592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38, skipping insertion in model container [2024-11-18 21:01:38,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 21:01:38,339 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_fillercodestructure_filler-pr-cn_file-86.i[919,932] [2024-11-18 21:01:38,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 21:01:38,448 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 21:01:38,459 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_fillercodestructure_filler-pr-cn_file-86.i[919,932] [2024-11-18 21:01:38,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 21:01:38,509 INFO L204 MainTranslator]: Completed translation [2024-11-18 21:01:38,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38 WrapperNode [2024-11-18 21:01:38,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 21:01:38,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 21:01:38,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 21:01:38,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 21:01:38,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,581 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248 [2024-11-18 21:01:38,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 21:01:38,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 21:01:38,582 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 21:01:38,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 21:01:38,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,662 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 21:01:38,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 21:01:38,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 21:01:38,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 21:01:38,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 21:01:38,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (1/1) ... [2024-11-18 21:01:38,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 21:01:38,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 21:01:38,729 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 21:01:38,739 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 21:01:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 21:01:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 21:01:38,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 21:01:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 21:01:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 21:01:38,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 21:01:38,859 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 21:01:38,862 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 21:01:39,252 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-18 21:01:39,253 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 21:01:39,267 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 21:01:39,268 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 21:01:39,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:39 BoogieIcfgContainer [2024-11-18 21:01:39,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 21:01:39,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 21:01:39,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 21:01:39,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 21:01:39,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:01:38" (1/3) ... [2024-11-18 21:01:39,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2834452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:39, skipping insertion in model container [2024-11-18 21:01:39,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:38" (2/3) ... [2024-11-18 21:01:39,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2834452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:39, skipping insertion in model container [2024-11-18 21:01:39,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:39" (3/3) ... [2024-11-18 21:01:39,278 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i [2024-11-18 21:01:39,292 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 21:01:39,293 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 21:01:39,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 21:01:39,365 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19350a7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 21:01:39,366 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 21:01:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-18 21:01:39,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-18 21:01:39,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:39,387 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:39,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:39,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:39,394 INFO L85 PathProgramCache]: Analyzing trace with hash 690971058, now seen corresponding path program 1 times [2024-11-18 21:01:39,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:39,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363550224] [2024-11-18 21:01:39,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-18 21:01:39,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:39,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363550224] [2024-11-18 21:01:39,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363550224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 21:01:39,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415889246] [2024-11-18 21:01:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:39,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 21:01:39,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 21:01:39,763 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 21:01:39,766 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 21:01:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:39,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 21:01:39,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 21:01:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-18 21:01:40,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 21:01:40,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415889246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:40,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 21:01:40,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 21:01:40,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448329414] [2024-11-18 21:01:40,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:40,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 21:01:40,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 21:01:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 21:01:40,084 INFO L87 Difference]: Start difference. First operand has 103 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 21:01:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:40,112 INFO L93 Difference]: Finished difference Result 199 states and 353 transitions. [2024-11-18 21:01:40,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 21:01:40,115 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 196 [2024-11-18 21:01:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:40,128 INFO L225 Difference]: With dead ends: 199 [2024-11-18 21:01:40,129 INFO L226 Difference]: Without dead ends: 99 [2024-11-18 21:01:40,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 197 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 21:01:40,136 INFO L432 NwaCegarLoop]: 156 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, 156 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 21:01:40,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 21:01:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-18 21:01:40,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-18 21:01:40,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-18 21:01:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 156 transitions. [2024-11-18 21:01:40,180 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 156 transitions. Word has length 196 [2024-11-18 21:01:40,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:40,182 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 156 transitions. [2024-11-18 21:01:40,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 21:01:40,182 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 156 transitions. [2024-11-18 21:01:40,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-18 21:01:40,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:40,185 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:40,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 21:01:40,389 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 21:01:40,390 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:40,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:40,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1419951696, now seen corresponding path program 1 times [2024-11-18 21:01:40,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:40,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777908653] [2024-11-18 21:01:40,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:40,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:01:40,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:40,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777908653] [2024-11-18 21:01:40,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777908653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:40,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:01:40,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 21:01:40,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707359041] [2024-11-18 21:01:40,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:40,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 21:01:40,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:40,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 21:01:40,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 21:01:40,823 INFO L87 Difference]: Start difference. First operand 99 states and 156 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:40,866 INFO L93 Difference]: Finished difference Result 196 states and 311 transitions. [2024-11-18 21:01:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 21:01:40,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-18 21:01:40,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:40,871 INFO L225 Difference]: With dead ends: 196 [2024-11-18 21:01:40,871 INFO L226 Difference]: Without dead ends: 100 [2024-11-18 21:01:40,872 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 21:01:40,877 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 21:01:40,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 21:01:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-18 21:01:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-18 21:01:40,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-18 21:01:40,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2024-11-18 21:01:40,892 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 196 [2024-11-18 21:01:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:40,894 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2024-11-18 21:01:40,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2024-11-18 21:01:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-18 21:01:40,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:40,897 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:40,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 21:01:40,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:40,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:40,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1595151922, now seen corresponding path program 1 times [2024-11-18 21:01:40,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:40,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983285864] [2024-11-18 21:01:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:40,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:01:41,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:41,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983285864] [2024-11-18 21:01:41,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983285864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:41,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:01:41,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 21:01:41,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77386249] [2024-11-18 21:01:41,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:41,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 21:01:41,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:41,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 21:01:41,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 21:01:41,236 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:41,482 INFO L93 Difference]: Finished difference Result 295 states and 466 transitions. [2024-11-18 21:01:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 21:01:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-18 21:01:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:41,488 INFO L225 Difference]: With dead ends: 295 [2024-11-18 21:01:41,490 INFO L226 Difference]: Without dead ends: 198 [2024-11-18 21:01:41,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 21:01:41,494 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 153 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 21:01:41,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 532 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 21:01:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-18 21:01:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 153. [2024-11-18 21:01:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 88 states have internal predecessors, (116), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-18 21:01:41,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 240 transitions. [2024-11-18 21:01:41,536 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 240 transitions. Word has length 196 [2024-11-18 21:01:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:41,537 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 240 transitions. [2024-11-18 21:01:41,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 240 transitions. [2024-11-18 21:01:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-18 21:01:41,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:41,547 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:41,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 21:01:41,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:41,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2017853748, now seen corresponding path program 1 times [2024-11-18 21:01:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414311279] [2024-11-18 21:01:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:01:46,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:46,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414311279] [2024-11-18 21:01:46,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414311279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:46,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:01:46,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 21:01:46,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517579105] [2024-11-18 21:01:46,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:46,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 21:01:46,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 21:01:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-18 21:01:46,005 INFO L87 Difference]: Start difference. First operand 153 states and 240 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:47,081 INFO L93 Difference]: Finished difference Result 395 states and 618 transitions. [2024-11-18 21:01:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 21:01:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-18 21:01:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:47,085 INFO L225 Difference]: With dead ends: 395 [2024-11-18 21:01:47,085 INFO L226 Difference]: Without dead ends: 298 [2024-11-18 21:01:47,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2024-11-18 21:01:47,086 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 493 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 21:01:47,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1321 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 21:01:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-18 21:01:47,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 195. [2024-11-18 21:01:47,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.3923076923076922) internal successors, (181), 130 states have internal predecessors, (181), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-18 21:01:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 305 transitions. [2024-11-18 21:01:47,103 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 305 transitions. Word has length 196 [2024-11-18 21:01:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:47,104 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 305 transitions. [2024-11-18 21:01:47,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:47,104 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 305 transitions. [2024-11-18 21:01:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-18 21:01:47,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:47,106 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:47,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 21:01:47,107 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:47,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:47,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1006736498, now seen corresponding path program 1 times [2024-11-18 21:01:47,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:47,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230815365] [2024-11-18 21:01:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:47,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:01:47,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:47,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230815365] [2024-11-18 21:01:47,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230815365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:47,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:01:47,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 21:01:47,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656247673] [2024-11-18 21:01:47,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:47,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 21:01:47,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:47,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 21:01:47,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 21:01:47,175 INFO L87 Difference]: Start difference. First operand 195 states and 305 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:47,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:47,208 INFO L93 Difference]: Finished difference Result 388 states and 611 transitions. [2024-11-18 21:01:47,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 21:01:47,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-18 21:01:47,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:47,211 INFO L225 Difference]: With dead ends: 388 [2024-11-18 21:01:47,211 INFO L226 Difference]: Without dead ends: 291 [2024-11-18 21:01:47,212 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 21:01:47,213 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 148 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 21:01:47,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 351 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 21:01:47,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-18 21:01:47,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 289. [2024-11-18 21:01:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 192 states have (on average 1.390625) internal successors, (267), 192 states have internal predecessors, (267), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:01:47,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 453 transitions. [2024-11-18 21:01:47,232 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 453 transitions. Word has length 196 [2024-11-18 21:01:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:47,233 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 453 transitions. [2024-11-18 21:01:47,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:47,233 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 453 transitions. [2024-11-18 21:01:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 21:01:47,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:47,235 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:47,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 21:01:47,235 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:47,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:47,236 INFO L85 PathProgramCache]: Analyzing trace with hash -498753333, now seen corresponding path program 1 times [2024-11-18 21:01:47,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:47,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591718699] [2024-11-18 21:01:47,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:47,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:01:51,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:51,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591718699] [2024-11-18 21:01:51,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591718699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:51,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:01:51,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 21:01:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165275622] [2024-11-18 21:01:51,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:51,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 21:01:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 21:01:51,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-18 21:01:51,340 INFO L87 Difference]: Start difference. First operand 289 states and 453 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:52,292 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2024-11-18 21:01:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 21:01:52,293 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 21:01:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:52,295 INFO L225 Difference]: With dead ends: 376 [2024-11-18 21:01:52,296 INFO L226 Difference]: Without dead ends: 374 [2024-11-18 21:01:52,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2024-11-18 21:01:52,297 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 698 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 21:01:52,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1094 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 21:01:52,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-18 21:01:52,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 290. [2024-11-18 21:01:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 193 states have (on average 1.38860103626943) internal successors, (268), 193 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:01:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 454 transitions. [2024-11-18 21:01:52,315 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 454 transitions. Word has length 197 [2024-11-18 21:01:52,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:52,316 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 454 transitions. [2024-11-18 21:01:52,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:52,316 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 454 transitions. [2024-11-18 21:01:52,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 21:01:52,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:52,318 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:52,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 21:01:52,318 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:52,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:52,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1514301425, now seen corresponding path program 1 times [2024-11-18 21:01:52,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:52,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019999865] [2024-11-18 21:01:52,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:52,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:01:52,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019999865] [2024-11-18 21:01:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019999865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:52,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:01:52,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 21:01:52,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297340115] [2024-11-18 21:01:52,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:52,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 21:01:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:52,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 21:01:52,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 21:01:52,488 INFO L87 Difference]: Start difference. First operand 290 states and 454 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:52,540 INFO L93 Difference]: Finished difference Result 504 states and 785 transitions. [2024-11-18 21:01:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 21:01:52,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 21:01:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:52,542 INFO L225 Difference]: With dead ends: 504 [2024-11-18 21:01:52,542 INFO L226 Difference]: Without dead ends: 310 [2024-11-18 21:01:52,543 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 21:01:52,544 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 56 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 21:01:52,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 433 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 21:01:52,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-18 21:01:52,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 298. [2024-11-18 21:01:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 199 states have (on average 1.3618090452261307) internal successors, (271), 199 states have internal predecessors, (271), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:01:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 457 transitions. [2024-11-18 21:01:52,573 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 457 transitions. Word has length 197 [2024-11-18 21:01:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:52,574 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 457 transitions. [2024-11-18 21:01:52,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:01:52,574 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 457 transitions. [2024-11-18 21:01:52,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 21:01:52,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:52,576 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:52,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 21:01:52,576 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:52,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:52,577 INFO L85 PathProgramCache]: Analyzing trace with hash 704954799, now seen corresponding path program 1 times [2024-11-18 21:01:52,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:52,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629410261] [2024-11-18 21:01:52,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:52,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:01:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:01:55,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:01:55,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629410261] [2024-11-18 21:01:55,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629410261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:01:55,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:01:55,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 21:01:55,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790092087] [2024-11-18 21:01:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:01:55,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 21:01:55,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:01:55,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 21:01:55,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-18 21:01:55,915 INFO L87 Difference]: Start difference. First operand 298 states and 457 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 21:01:57,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:01:57,292 INFO L93 Difference]: Finished difference Result 391 states and 585 transitions. [2024-11-18 21:01:57,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 21:01:57,293 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 197 [2024-11-18 21:01:57,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:01:57,297 INFO L225 Difference]: With dead ends: 391 [2024-11-18 21:01:57,297 INFO L226 Difference]: Without dead ends: 389 [2024-11-18 21:01:57,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=319, Invalid=941, Unknown=0, NotChecked=0, Total=1260 [2024-11-18 21:01:57,299 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 551 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 21:01:57,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1400 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 21:01:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-18 21:01:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 298. [2024-11-18 21:01:57,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 199 states have (on average 1.3618090452261307) internal successors, (271), 199 states have internal predecessors, (271), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:01:57,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 457 transitions. [2024-11-18 21:01:57,314 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 457 transitions. Word has length 197 [2024-11-18 21:01:57,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:01:57,314 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 457 transitions. [2024-11-18 21:01:57,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 21:01:57,315 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 457 transitions. [2024-11-18 21:01:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 21:01:57,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:01:57,316 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:57,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 21:01:57,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:01:57,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:01:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash -383393271, now seen corresponding path program 1 times [2024-11-18 21:01:57,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:01:57,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226103784] [2024-11-18 21:01:57,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:01:57,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:01:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:02:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:02:01,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:02:01,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226103784] [2024-11-18 21:02:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226103784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:02:01,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:02:01,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 21:02:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586891896] [2024-11-18 21:02:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:02:01,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 21:02:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:02:01,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 21:02:01,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-18 21:02:01,952 INFO L87 Difference]: Start difference. First operand 298 states and 457 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:02:04,895 INFO L93 Difference]: Finished difference Result 416 states and 620 transitions. [2024-11-18 21:02:04,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 21:02:04,896 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 21:02:04,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:02:04,898 INFO L225 Difference]: With dead ends: 416 [2024-11-18 21:02:04,898 INFO L226 Difference]: Without dead ends: 414 [2024-11-18 21:02:04,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2024-11-18 21:02:04,899 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 666 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 21:02:04,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1186 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 21:02:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-18 21:02:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 317. [2024-11-18 21:02:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 218 states have (on average 1.3761467889908257) internal successors, (300), 218 states have internal predecessors, (300), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:02:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 486 transitions. [2024-11-18 21:02:04,915 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 486 transitions. Word has length 197 [2024-11-18 21:02:04,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:02:04,916 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 486 transitions. [2024-11-18 21:02:04,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 486 transitions. [2024-11-18 21:02:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 21:02:04,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:02:04,918 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:02:04,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 21:02:04,918 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:02:04,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:02:04,919 INFO L85 PathProgramCache]: Analyzing trace with hash -125227833, now seen corresponding path program 1 times [2024-11-18 21:02:04,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:02:04,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788468263] [2024-11-18 21:02:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:02:04,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:02:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:02:11,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:02:11,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:02:11,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788468263] [2024-11-18 21:02:11,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788468263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:02:11,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:02:11,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 21:02:11,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121931720] [2024-11-18 21:02:11,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:02:11,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 21:02:11,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:02:11,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 21:02:11,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-11-18 21:02:11,548 INFO L87 Difference]: Start difference. First operand 317 states and 486 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:17,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:02:17,355 INFO L93 Difference]: Finished difference Result 410 states and 614 transitions. [2024-11-18 21:02:17,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 21:02:17,356 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 21:02:17,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:02:17,358 INFO L225 Difference]: With dead ends: 410 [2024-11-18 21:02:17,358 INFO L226 Difference]: Without dead ends: 408 [2024-11-18 21:02:17,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 21:02:17,360 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 481 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 21:02:17,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1300 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 21:02:17,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-18 21:02:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 317. [2024-11-18 21:02:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 218 states have (on average 1.3761467889908257) internal successors, (300), 218 states have internal predecessors, (300), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:02:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 486 transitions. [2024-11-18 21:02:17,376 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 486 transitions. Word has length 197 [2024-11-18 21:02:17,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:02:17,377 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 486 transitions. [2024-11-18 21:02:17,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:17,377 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 486 transitions. [2024-11-18 21:02:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 21:02:17,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:02:17,378 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:02:17,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 21:02:17,379 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:02:17,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:02:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash -523749818, now seen corresponding path program 1 times [2024-11-18 21:02:17,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:02:17,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176259903] [2024-11-18 21:02:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:02:17,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:02:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:02:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:02:28,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:02:28,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176259903] [2024-11-18 21:02:28,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176259903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:02:28,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:02:28,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-18 21:02:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638607097] [2024-11-18 21:02:28,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:02:28,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 21:02:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:02:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 21:02:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-18 21:02:28,349 INFO L87 Difference]: Start difference. First operand 317 states and 486 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:34,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:02:34,408 INFO L93 Difference]: Finished difference Result 421 states and 629 transitions. [2024-11-18 21:02:34,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 21:02:34,409 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-18 21:02:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:02:34,413 INFO L225 Difference]: With dead ends: 421 [2024-11-18 21:02:34,413 INFO L226 Difference]: Without dead ends: 419 [2024-11-18 21:02:34,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=388, Invalid=1018, Unknown=0, NotChecked=0, Total=1406 [2024-11-18 21:02:34,414 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 430 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 21:02:34,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1423 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 21:02:34,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-18 21:02:34,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 336. [2024-11-18 21:02:34,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 237 states have (on average 1.3881856540084387) internal successors, (329), 237 states have internal predecessors, (329), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:02:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 515 transitions. [2024-11-18 21:02:34,430 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 515 transitions. Word has length 198 [2024-11-18 21:02:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:02:34,431 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 515 transitions. [2024-11-18 21:02:34,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 515 transitions. [2024-11-18 21:02:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 21:02:34,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:02:34,433 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:02:34,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 21:02:34,433 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:02:34,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:02:34,433 INFO L85 PathProgramCache]: Analyzing trace with hash -265584380, now seen corresponding path program 1 times [2024-11-18 21:02:34,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:02:34,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129966224] [2024-11-18 21:02:34,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:02:34,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:02:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:02:45,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:02:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:02:45,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129966224] [2024-11-18 21:02:45,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129966224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:02:45,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:02:45,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-18 21:02:45,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109013230] [2024-11-18 21:02:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:02:45,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 21:02:45,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:02:45,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 21:02:45,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-11-18 21:02:45,729 INFO L87 Difference]: Start difference. First operand 336 states and 515 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:53,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:02:53,778 INFO L93 Difference]: Finished difference Result 415 states and 623 transitions. [2024-11-18 21:02:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 21:02:53,779 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-18 21:02:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:02:53,781 INFO L225 Difference]: With dead ends: 415 [2024-11-18 21:02:53,782 INFO L226 Difference]: Without dead ends: 413 [2024-11-18 21:02:53,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=387, Invalid=945, Unknown=0, NotChecked=0, Total=1332 [2024-11-18 21:02:53,783 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 389 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 21:02:53,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1563 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 21:02:53,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-18 21:02:53,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 333. [2024-11-18 21:02:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 234 states have (on average 1.3888888888888888) internal successors, (325), 234 states have internal predecessors, (325), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:02:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 511 transitions. [2024-11-18 21:02:53,827 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 511 transitions. Word has length 198 [2024-11-18 21:02:53,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:02:53,828 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 511 transitions. [2024-11-18 21:02:53,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 21:02:53,828 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 511 transitions. [2024-11-18 21:02:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 21:02:53,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:02:53,829 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:02:53,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 21:02:53,829 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:02:53,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:02:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1751052208, now seen corresponding path program 1 times [2024-11-18 21:02:53,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:02:53,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761792749] [2024-11-18 21:02:53,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:02:53,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:02:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:02:56,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:02:56,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:02:56,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761792749] [2024-11-18 21:02:56,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761792749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:02:56,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:02:56,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-18 21:02:56,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90519591] [2024-11-18 21:02:56,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:02:56,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-18 21:02:56,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:02:56,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-18 21:02:56,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-18 21:02:56,760 INFO L87 Difference]: Start difference. First operand 333 states and 511 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 21:02:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:02:57,786 INFO L93 Difference]: Finished difference Result 396 states and 594 transitions. [2024-11-18 21:02:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 21:02:57,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-11-18 21:02:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:02:57,792 INFO L225 Difference]: With dead ends: 396 [2024-11-18 21:02:57,794 INFO L226 Difference]: Without dead ends: 394 [2024-11-18 21:02:57,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2024-11-18 21:02:57,796 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 700 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 21:02:57,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1355 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 21:02:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-18 21:02:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 330. [2024-11-18 21:02:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 231 states have (on average 1.3896103896103895) internal successors, (321), 231 states have internal predecessors, (321), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 21:02:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 507 transitions. [2024-11-18 21:02:57,826 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 507 transitions. Word has length 198 [2024-11-18 21:02:57,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:02:57,830 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 507 transitions. [2024-11-18 21:02:57,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 21:02:57,831 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 507 transitions. [2024-11-18 21:02:57,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 21:02:57,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:02:57,832 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:02:57,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 21:02:57,832 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:02:57,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:02:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1865708588, now seen corresponding path program 1 times [2024-11-18 21:02:57,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:02:57,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636259139] [2024-11-18 21:02:57,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:02:57,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:02:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:03:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 21:03:06,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:03:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636259139] [2024-11-18 21:03:06,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636259139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:03:06,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:03:06,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 21:03:06,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410024976] [2024-11-18 21:03:06,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:03:06,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 21:03:06,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:03:06,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 21:03:06,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-18 21:03:06,416 INFO L87 Difference]: Start difference. First operand 330 states and 507 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)